Blast furnace slag flushing water flow adjustment method and device and computer equipment

Abstract

A blast furnace slag flushing water flow adjusting method and device and a computer device, relate to the technical field of blast furnace slag flushing water in blast furnace smelting, the method comprises determining an average slag flushing water flow; determining a slag flushing stage identifier at the current time according to the tapping amount of the blast furnace, the slag flushing stage identifier comprises a slag flushing preparation period identifier, a slag flushing initial stage identifier, a slag flushing middle stage identifier and a slag flushing later stage identifier; determining a first target coefficient from a preset coefficient interval corresponding to the slag flushing stage identifier according to the slag flushing stage identifier, specifically, the maximum value in the first preset coefficient interval corresponding to the slag flushing preparation period identifier is less than a preset data, and the minimum value in the second preset coefficient interval corresponding to the slag flushing middle stage identifier is greater than the preset data; and determining the product of the average slag flushing water flow and the first target coefficient as the slag flushing water flow data corresponding to the current time to control the slag water pump to spray the slag flushing water flow corresponding to the slag flushing water flow data for high-temperature liquid slag flushing.

Description

Technical Field

[0001] This application relates to the field of blast furnace water flushing technology in blast furnace smelting, and particularly to a method, device and computer equipment for adjusting the flow rate of blast furnace flushing water. Background Technology

[0002] With the development of the blast furnace smelting industry, the amount of molten iron produced is increasing. However, high-temperature liquid slag (1350-1500℃) is generated during blast furnace smelting, resulting in an increasing amount of slag. High-temperature liquid slag is a major byproduct of blast furnace smelting and a major solid waste in the steel industry.

[0003] Currently, water flushing is commonly used to treat high-temperature liquid molten slag. The resulting slag particles can be used as raw materials for cement production, thus realizing the resource utilization of molten slag solid waste. Specifically, after the high-temperature liquid molten slag flows out of the slag channel, it is rapidly crushed, quenched, and granulated by a high-speed, high-pressure water jet sprayed from the granulator, generating a slag-water mixture. This mixture is further cooled in the protective water at the bottom of the granulation tower, and then flows into a filtration tank through the outlet device of the granulation tower to complete slag-water separation, or slag-water separation is performed using a slag-water separation device to complete the flushing process.

[0004] Furthermore, the slag output varies significantly at different stages of blast furnace smelting. Currently, however, peak flushing water flow rate is used for slag flushing. Consequently, in the early stages of blast furnace smelting when the slag output is low, the peak flushing water flow rate is relatively high, resulting in waste of flushing water.

[0005] How to achieve efficient and energy-saving treatment of blast furnace slag is an urgent problem to be solved in existing technologies.

[0006] It should be noted that the above description of the background technology is only for the purpose of providing a clear and complete explanation of the technical solutions of this application and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background technology section of this application. Summary of the Invention

[0007] To address the problems in the prior art, this application provides a method, apparatus, and computer equipment for adjusting the blast furnace slag flushing water flow rate. This method divides the slag flushing process into multiple stages based on the blast furnace's iron tapping rate, and determines different slag flushing water flow rates for different stages, thereby achieving efficient and energy-saving treatment of blast furnace molten slag.

[0008] To solve the above-mentioned technical problems, the specific technical solution of this application is as follows:

[0009] On the one hand, embodiments of this application provide a method for adjusting the flow rate of blast furnace slag flushing water, including,

[0010] Determine the average flushing water flow rate;

[0011] Based on the blast furnace's iron output, determine the current slag flushing stage marker. The slag flushing stage markers include the slag flushing preparation stage marker, the initial slag flushing stage marker, the middle slag flushing stage marker, and the late slag flushing stage marker.

[0012] Based on the slag flushing stage marker, a first target coefficient is determined from a preset coefficient range corresponding to the slag flushing stage marker. Specifically, the maximum value within the first preset coefficient range corresponding to the slag flushing preparation stage marker is less than a preset data, and the minimum value within the second preset coefficient range corresponding to the slag flushing mid-stage marker is greater than a preset data; and

[0013] The product of the average flushing water flow rate and the first target coefficient is determined as the flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray out the flushing water flow rate corresponding to the flushing water flow rate data to flush the high-temperature liquid molten slag.

[0014] On the other hand, this application embodiment also provides a blast furnace slag flushing water flow rate adjustment device, including,

[0015] The first determining unit is used to determine the average flushing water flow rate.

[0016] The second determining unit is used to determine the current slag flushing stage identifier based on the blast furnace's iron tapping rate. The slag flushing stage identifier includes the slag flushing preparation period identifier, the initial slag flushing identifier, the middle slag flushing identifier, and the late slag flushing identifier.

[0017] The third determining unit is used to determine a first target coefficient from a preset coefficient range corresponding to the slag flushing stage indicator, specifically, the maximum value in the first preset coefficient range corresponding to the slag flushing preparation stage indicator is less than a preset data, and the minimum value in the second preset coefficient range corresponding to the slag flushing mid-stage indicator is greater than a preset data; and

[0018] The determination and control unit is used to determine the product of the average flushing water flow rate and the first target coefficient as the flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray the flushing water flow rate corresponding to the flushing water flow rate data to flush the high-temperature liquid molten slag.

[0019] On the other hand, embodiments of this application also provide a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the above-described method.

[0020] On the other hand, embodiments of this application also provide a computer-readable storage medium storing computer instructions thereon, which, when executed by a processor, implement the above-described method.

[0021] On the other hand, embodiments of this application also provide a computer program product, including a computer program / instructions and a method implemented when the computer program / instructions are executed by a processor.

[0022] On the other hand, this application embodiment also provides a blast furnace, including a control system and a slag water pump; specifically, the control system determines the average slag flushing water flow rate; based on the iron output of the blast furnace, it determines the slag flushing stage identifier at the current moment, the slag flushing stage identifier including a slag flushing preparation period identifier, a slag flushing initial stage identifier, a slag flushing middle stage identifier, and a slag flushing later stage identifier; based on the slag flushing stage identifier, it determines a first target coefficient from a preset coefficient range corresponding to the slag flushing stage identifier, specifically, the maximum value in the first preset coefficient range corresponding to the slag flushing preparation period identifier is less than a preset data, and the minimum value in the second preset coefficient range corresponding to the slag flushing middle stage identifier is greater than a preset data; and it determines the product of the average slag flushing water flow rate and the first target coefficient as the slag flushing water flow rate data corresponding to the current moment, so as to control the slag water pump to spray the slag flushing water flow rate corresponding to the slag flushing water flow rate data for high-temperature liquid molten slag flushing.

[0023] Using the embodiments of this application, firstly, based on the blast furnace's iron output, the current slag flushing stage is determined to be either a slag flushing preparation stage, an initial slag flushing stage, a mid-slag flushing stage, or a late-slag flushing stage. Further, based on the slag flushing stage, a first target coefficient is determined from a preset coefficient range corresponding to the stage. Specifically, the maximum value within the first preset coefficient range corresponding to the slag flushing preparation stage is less than a preset data, and the minimum value within the second preset coefficient range corresponding to the mid-slag flushing stage is greater than a preset data. Finally, the product of the determined average slag flushing water flow rate and the first target coefficient is calculated, and this product is determined as the slag flushing water flow rate data corresponding to the current time. This is used to control the slag water pump to spray the slag flushing water flow rate corresponding to the slag flushing water flow rate data for high-temperature liquid molten slag flushing. Based on this, the slag flushing process is divided into multiple stages based on the blast furnace's iron output, and different slag flushing water flow rates are determined for different stages. This allows for resource conservation when the slag output is low. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0025] Figure 1 The figure shown is a schematic diagram of the implementation system of a method for adjusting the flow rate of blast furnace slag flushing water according to an embodiment of this application;

[0026] Figure 2 The diagram shown is a flowchart of a method for adjusting the flow rate of blast furnace slag flushing water according to an embodiment of this application;

[0027] Figure 3A The diagram shown is a flowchart of a method for determining the average flushing water flow rate according to an embodiment of this application;

[0028] Figure 3B The diagram shown is a flowchart of a method for determining the average flushing water flow rate according to another embodiment of this application;

[0029] Figure 4 The diagram shown is a flowchart of a method for determining the slag flushing stage according to an embodiment of this application;

[0030] Figure 5 The diagram shown is a flowchart of a method for adjusting the flow rate of blast furnace slag flushing water according to another embodiment of this application;

[0031] Figure 6A The diagram shown is a structural schematic of a blast furnace slag flushing water flow rate adjustment device according to an embodiment of this application.

[0032] Figure 6B The diagram shown is a structural schematic of a blast furnace slag flushing water flow rate adjustment device according to another embodiment of this application;

[0033] Figure 6C The diagram shown is a structural schematic of a blast furnace slag flushing water flow rate adjustment device according to another embodiment of this application;

[0034] Figure 6D The diagram shown is a structural schematic of a blast furnace slag flushing water flow rate adjustment device according to another embodiment of this application;

[0035] Figure 7 This is a schematic diagram of the structure of a computer device according to an embodiment of this application. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, apparatus, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0038] It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0039] Figure 1The diagram illustrates an implementation system for a blast furnace slag flushing water flow adjustment method according to an embodiment of this application. The system includes a user terminal 101, a server 102, and a data acquisition terminal 103. Communication between the user terminal 101 and the server 102, and between the server 102 and the data acquisition terminal 103, occurs via a network. This network can include a Local Area Network (LAN), a Wide Area Network (WAN), the Internet, or a combination thereof, and is connected to a website, user equipment (e.g., a computing device), and a backend system. When a user wants to determine the corresponding slag flushing water flow rate for a blast furnace, they can send a slag flushing water flow rate determination request to the server 102 through the user terminal 101. This request may include, for example, the blast furnace's identifier. Upon receiving the slag flushing water flow rate determination request, the server 102 communicates with the data acquisition terminal 103 to obtain the blast furnace's iron output. It should be noted that the data acquisition terminal 103 can be, for example, an iron output monitoring sensor configured within the blast furnace, capable of collecting and storing or transmitting real-time iron output data to the server 102. Server 102 determines the average slag flushing water flow rate; based on the obtained blast furnace iron tapping volume, it determines the slag flushing stage identifier for the current moment, which includes the slag flushing preparation stage identifier, the initial slag flushing stage identifier, the mid-slag flushing stage identifier, and the late-slag flushing stage identifier; based on the slag flushing stage identifier, it determines a first target coefficient from a preset coefficient range corresponding to the slag flushing stage identifier, specifically, the maximum value in the first preset coefficient range corresponding to the slag flushing preparation stage identifier is less than a preset data, and the minimum value in the second preset coefficient range corresponding to the mid-slag flushing stage identifier is greater than a preset data; and it determines that the product of the average slag flushing water flow rate and the first target coefficient is the slag flushing water flow rate data corresponding to the current moment, and sends the slag flushing water flow rate data to the user terminal 101, so that the user terminal 101 controls the slag water pump to spray out the slag flushing water flow rate corresponding to the slag flushing water flow rate data for high-temperature liquid molten slag flushing. Furthermore, after the current slag flushing stage is marked as the late slag flushing stage, the server 102, in response to the absence of residual molten slag, determines that the current slag flushing stage is marked as the slag flushing end stage and sends a stop slag flushing water ejection flag to the user terminal 101, so that the user terminal 101 controls the slag water pump to stop ejecting slag flushing water.

[0040] Alternatively, server 102 may be a node of a cloud computing system (not shown in the figure), or each server 102 may be a separate cloud computing system comprising multiple computers interconnected by a network and operating as a distributed processing system.

[0041] In an optional embodiment, the user terminal 101 may include electronic devices, including but not limited to smartphones, data acquisition devices, desktop computers, tablets, laptops, smart speakers, digital assistants, augmented reality (AR) / virtual reality (VR) devices, smart wearable devices, and other similar electronic devices. Optionally, the operating system running on the electronic device may include, but is not limited to, Android, iOS, Linux, Windows, etc. It should be noted that the user terminal 101 may include a terminal embedded in the blast furnace, which embeds the blast furnace's operating system. Specifically, the user can input a request to determine the slag flushing water flow rate from the user input interface of the operating system.

[0042] In addition, it should be noted that, Figure 1 The example shown is merely one application environment provided by this application. In practical applications, it may also include multiple user terminals 101 and multiple acquisition terminals 103. This application does not impose any restrictions.

[0043] like Figure 2 The diagram shows a flowchart of a method for adjusting the flow rate of blast furnace slag flushing water according to an embodiment of this application. This diagram describes the process of adjusting the blast furnace slag flushing water flow rate, but based on conventional or non-inventive methods, it may include more or fewer operational steps. The order of steps listed in the embodiment is merely one possible execution order among many and does not represent the only possible execution order. In actual system or device products, the methods shown in the embodiment or the accompanying drawings can be executed sequentially or in parallel. Specifically, as shown... Figure 2 As shown, the method may include:

[0044] S210, determine the average flushing water flow rate;

[0045] S220, based on the blast furnace's iron output, determines the current slag flushing stage indicator;

[0046] S230, Based on the slag flushing stage indicator, determine the first target coefficient from the preset coefficient range corresponding to the slag flushing stage indicator;

[0047] S240, determine the product of the average flushing water flow rate and the first target coefficient as the flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray out the flushing water flow rate corresponding to the flushing water flow rate data to flush the slag with high temperature liquid molten slag.

[0048] Using the embodiments of this application, firstly, based on the blast furnace's iron output, the current slag flushing stage is determined to be either a slag flushing preparation stage, an initial slag flushing stage, a mid-slag flushing stage, or a late-slag flushing stage. Further, based on the slag flushing stage, a first target coefficient is determined from a preset coefficient range corresponding to the stage. Specifically, the maximum value within the first preset coefficient range corresponding to the slag flushing preparation stage is less than a preset data, and the minimum value within the second preset coefficient range corresponding to the mid-slag flushing stage is greater than a preset data. Finally, the product of the determined average slag flushing water flow rate and the first target coefficient is calculated, and this product is determined as the slag flushing water flow rate data corresponding to the current time. This is used to control the slag water pump to spray the slag flushing water flow rate corresponding to the slag flushing water flow rate data for high-temperature liquid molten slag flushing. Based on this, the slag flushing process is divided into multiple stages based on the blast furnace's iron output, and different slag flushing water flow rates are determined for different stages. This allows for resource conservation when the slag output is low.

[0049] According to one embodiment of this application, slag flushing is divided into four stages: slag flushing preparation period, initial slag flushing period, intermediate slag flushing period, and final slag flushing period. Different slag flushing water flow rate data are determined for at least two different stages. That is, at least two slag flushing water flow rate data are determined for each of the four stages. Which two stages have the same slag flushing water flow rate data can be configured based on actual conditions, and this application does not limit this. It should be noted that four different slag flushing water flow rate data can also be configured for the above four stages.

[0050] To determine the above slag flushing water flow rate data, it is necessary to determine the average slag flushing water flow rate. This average slag flushing water flow rate can be configured in advance, or it can be determined based on information such as the blast furnace production status and the raw materials for blast furnace ironmaking. Alternatively, it can be calculated as the average value of the slag flushing water flow rate (a uniform peak slag flushing water flow rate throughout the entire process) for different blast furnaces. This embodiment does not limit this method.

[0051] The slag flushing stage identifiers include the slag flushing preparation stage identifier, the initial slag flushing stage identifier, the mid-slag flushing stage identifier, and the late slag flushing stage identifier. For each moment, a corresponding slag flushing stage identifier is determined. This identifier uniquely represents the current slag flushing stage. For example, if the current slag flushing stage is the initial slag flushing stage, then the corresponding slag flushing stage identifier is the identifier representing the initial slag flushing stage (initial slag flushing identifier). It should be noted that the intervals between each moment determining the slag flushing water flow rate data can be the same or different. For example, after the iron output reaches its maximum value at the current moment, the interval between moments can be shortened; when the iron output is zero, the shortened interval is restored to the previous interval.

[0052] The blast furnace's iron tapping rate is data that can be directly acquired by the blast furnace using sensors and other acquisition devices. Based on this iron tapping rate, the current slag flushing stage identifier is determined. Specifically, different cumulative iron tapping rate thresholds are configured for different slag flushing stages. For each current moment, the current cumulative iron tapping rate is determined based on the acquired iron tapping rate. This cumulative iron tapping rate is then compared with the cumulative iron tapping rate threshold. If the current cumulative iron tapping rate is greater than or equal to the cumulative iron tapping rate threshold, a preset slag flushing stage identifier corresponding to that threshold is determined as the current slag flushing stage identifier.

[0053] For each slag flushing stage, a corresponding preset coefficient range is configured in advance. The data in each preset coefficient range may or may not overlap, but the data in at least two preset coefficient ranges may not overlap.

[0054] The maximum value within the first preset coefficient interval corresponding to the slag flushing preparation period marker is less than the preset data, and the minimum value within the second preset coefficient interval corresponding to the slag flushing mid-term marker is greater than the preset data. The preset data can be any integer greater than 0, and this application does not impose any limitation on it.

[0055] After determining the preset coefficient range corresponding to the current moment, a first target coefficient is selected from this preset coefficient range. Specifically, the method for selecting the first target coefficient can be to randomly select data, to determine data based on the current blast furnace production parameters, or to try different data at multiple moments in the current stage to determine the final data. This application does not limit the method of selecting the first target coefficient. Specifically, determining a first target coefficient based on the current blast furnace production parameters can be based on any production parameter of the blast furnace, and the specific determination method can be determined according to actual needs; this application does not limit this. Trying different data at multiple moments in the current stage to determine the final data can be, for example, using data A within the preset coefficient range at the first moment of the current stage, and at the second moment, first determining whether there is residual slag. If there is no residual slag, a data less than A can be selected from the preset coefficient range as the first target coefficient for the current moment; otherwise, a data greater than A can be selected as the first target coefficient for the current moment.

[0056] After obtaining the first target coefficient and the average flushing water flow rate, the product of the first target coefficient and the average flushing water flow rate is determined, and the product is used as the flushing water flow rate data corresponding to the current time. Then, the slag pump is controlled to spray the flushing water flow rate corresponding to the flushing water flow rate data to flush the slag with high-temperature liquid molten slag.

[0057] According to another embodiment of this application, for ease of calculation, the preset data can be 1, and the first preset coefficient range corresponding to the slag flushing preparation period marker can be [0.6, 0.8], and the second preset coefficient range corresponding to the slag flushing mid-term marker can be [1.2, 1.5]. Further, the preset coefficient range corresponding to the slag flushing initial marker and the slag flushing mid-term marker can be the same (i.e., the third preset coefficient range), and the third preset coefficient range corresponding to the slag flushing initial marker and the slag flushing late marker includes preset data (i.e., the third preset coefficient range can be [1], it should be noted that the third preset coefficient range can also include adjacent data greater than 1 and less than 1, for example, the third preset coefficient range can be [0.9, 1.1]).

[0058] According to another embodiment of this application, determining the current slag flushing stage identifier based on the blast furnace's iron tapping rate includes: in response to the blast furnace's iron tapping rate changing from zero to a positive number, determining the current slag flushing stage identifier as a slag flushing preparation period identifier; and in response to the blast furnace's iron tapping rate changing from a positive number to zero and the presence of residual molten slag, determining the current slag flushing stage identifier as a slag flushing post-stage identifier.

[0059] In other words, when the blast furnace's iron output changes from 0 to a positive number, the current moment is marked as the slag flushing preparation period. When the blast furnace's iron output changes from a positive number to 0 and residual molten slag is present, the current moment is marked as the slag flushing post-stage period.

[0060] Specifically, determining the presence of residual slag can be achieved by using information obtained from sensors in the slag trench, which can determine whether residual slag exists in the current slag trench; alternatively, an image acquisition device (camera or video camera) can be configured in the slag trench, and then a trained artificial intelligence model can be used to process the acquired images of the slag trench to obtain the corresponding result of whether residual slag exists. This application does not limit the method for determining the presence of residual slag and can configure it according to the actual situation. Specifically, the training process of the trained artificial intelligence model can be carried out using any currently trainable artificial intelligence model, and this application does not limit this.

[0061] Figure 3A The diagram shown is a flowchart of a method for determining the average flushing water flow rate according to an embodiment of this application. Figure 3B The diagram shown is a flowchart of a method for determining the average flushing water flow rate according to another embodiment of this application. Figure 3A The document describes a process for determining the average flushing water flow rate, but based on conventional or non-creative labor, it may include more or fewer operational steps. Specifically, for example... Figure 3A As shown, the method may include:

[0062] S311, determine the amount of slag per batch based on the blast furnace tapping parameters;

[0063] S312 determines the average flushing water flow rate based on the single slag volume, slag-to-water ratio, and flushing time.

[0064] According to another embodiment of this application, blast furnace tapping parameters may include, for example, the daily slag amount and the number of times iron is produced daily. Based on the blast furnace tapping parameters, the slag amount per tap can be determined by dividing the daily slag amount by the number of times iron is produced daily.

[0065] The slag-to-water ratio is the ratio of molten slag to water. Further, for example, a regression model or artificial intelligence model can be used in advance to model the relationship between the single slag volume, slag-to-water ratio, slag flushing time, and average slag flushing water flow rate. This generates a corresponding model that can determine the average slag flushing water flow rate based on the single slag volume, slag-to-water ratio, and slag flushing time. Thus, the single slag volume, slag-to-water ratio, and slag flushing time can be input into this model to obtain the average slag flushing water flow rate. The specific modeling method can be implemented based on historical data (historical single slag volume, historical slag-to-water ratio, historical slag flushing time, and historical average slag flushing water flow rate) as a dataset. This application does not limit the specific modeling process; it can be determined based on the actual situation.

[0066] According to another embodiment of this application, blast furnace tapping parameters may include, for example, daily iron output, slag-to-iron ratio, and number of daily iron outputs. For instance, a regression model or artificial intelligence model can be used in advance to model the relationship between daily iron output, slag-to-iron ratio, number of daily iron outputs, and slag output per tap, thereby generating a corresponding model that can determine the slag output per tap based on the daily iron output, slag-to-iron ratio, and number of daily iron outputs. Thus, the daily iron output, slag-to-iron ratio, and number of daily iron outputs can be input into this model to obtain the slag output per tap. The specific modeling method can be implemented based on historical data (historical daily iron output, slag-to-iron ratio, historical number of daily iron outputs, and historical slag output per tap) as a dataset. The specific modeling process is not limited in this application and can be determined based on actual conditions.

[0067] According to another embodiment of this application, determining the slag amount per batch based on the blast furnace tapping parameters includes: determining the product of the daily iron production and the slag-to-iron ratio as first data; and calculating the first parameter divided by the number of daily iron productions to obtain second data, and determining the second data as the slag amount per batch (i.e., slag amount per batch = (daily iron production × slag-to-iron ratio) / number of daily iron productions).

[0068] According to another embodiment of this application, determining the average flushing water flow rate based on the single slag volume, slag-to-water ratio, and flushing time includes: determining the product of the slag-to-water ratio and the flushing time as a fourth data point; and calculating the single slag volume divided by the fourth data point to obtain a fifth data point, and determining the fifth data point as the average flushing water flow rate (i.e., average flushing water flow rate = single slag volume / (slag-to-water ratio × flushing time)).

[0069] Specifically, the slag-to-water ratio can be taken as 1:7 to 1:12 (slag:water) depending on the characteristics of the slag flow.

[0070] exist Figure 3B Another process for determining the average flushing water flow rate is described, but based on conventional or non-creative labor, it may include more or fewer operational steps. Specifically, as... Figure 3B As shown, the method may include:

[0071] S3011, Determine if there is currently peak data for flushing slag water;

[0072] S3012, executes the determination of single slag volume based on blast furnace tapping parameters;

[0073] S3013, determine the second target coefficient from the second preset coefficient range corresponding to the mid-term slag flushing indicator;

[0074] S3014, Calculate the peak flushing water data by dividing it by the second target coefficient to obtain the third data, and determine the third data as the average flushing water flow rate.

[0075] According to another embodiment of this application, since blast furnaces are divided into blast furnaces that are put into operation for the first time and blast furnaces that have been operated multiple times, in order to save computing resources, the peak slag flushing water flow rate that is consistent throughout the entire process can be determined for blast furnaces that have been operated multiple times. This peak slag flushing water flow rate can be used as the slag flushing water flow rate data corresponding to the current time corresponding to the mid-term slag flushing mark to back-calculate the average slag flushing water flow rate. Furthermore, the slag flushing water flow rate data corresponding to the slag flushing preparation period mark can be determined.

[0076] First, determine if peak flushing water flow data exists. Specifically, if a peak flushing water flow rate is found to exist, the peak flushing water flow rate is used as the peak flushing water flow data; otherwise, it is determined that no peak flushing water flow data exists.

[0077] If it is determined that there is no peak data for the slag flushing water, the process is to determine the amount of slag per flush based on the blast furnace tapping parameters, and then determine the average slag flushing water flow rate (i.e., to execute...). Figure 3A (S311-S312 in the above); If the existence of the peak flushing water data is confirmed, the second target coefficient is determined from the second preset coefficient interval corresponding to the mid-term flushing indicator, and then the peak flushing water data is divided by the second target coefficient to obtain the third data, and the third data is determined as the average flushing water flow rate (that is, the reverse process of determining the flushing water flow rate data corresponding to the mid-term flushing indicator mentioned above, the specific implementation method can be the reverse of the process of determining the flushing water flow rate data corresponding to the mid-term flushing indicator, which will not be elaborated in this application).

[0078] Figure 4 The diagram shown is a flowchart of a method for determining the slag flushing stage according to an embodiment of this application. Figure 4 The document describes a process for identifying the slag flushing stage, but based on routine or non-creative labor, it may include more or fewer operational steps. Specifically, for example... Figure 4 As shown, the method may include:

[0079] S421, for each time moment, determine the rate of change of iron output corresponding to that time moment;

[0080] S422, in response to the blast furnace iron output being positive, the rate of change of iron output gradually increases and then gradually decreases and becomes less than or equal to the first preset threshold and greater than zero, the current slag flushing stage is identified as the initial slag flushing stage.

[0081] S423, in response to the blast furnace's iron output being positive and the rate of change in iron output being less than zero, the current moment's slag flushing stage is determined as the mid-stage slag flushing stage.

[0082] According to another embodiment of this application, the interval between every two moments is the same. For each moment, a rate of change in the amount of iron produced is determined, that is, the difference between the amount of iron produced at the current moment and the amount of iron produced at the previous moment is calculated and divided by the fixed time interval. Thus, a rate of change in the amount of iron produced exists for each moment.

[0083] When the blast furnace's iron output is non-zero (i.e., the iron output is positive), and the rate of change of iron output at each moment, arranged forward in time, gradually increases and then gradually decreases, becoming less than or equal to a first preset threshold but greater than zero (i.e., the iron output at each moment does not change significantly, meaning the iron output curve approaches stability), the current moment can be identified as the initial stage of slag flushing. It should be noted that the first preset threshold can be determined based on actual conditions; this application does not limit it, for example, it could be 0.5.

[0084] Furthermore, when the blast furnace's iron output is non-zero (i.e., the iron output is positive) and the rate of change of iron output is less than zero (i.e., the iron output begins to decrease), the current moment's slag flushing stage is identified as the mid-stage slag flushing stage.

[0085] Figure 5 The diagram shows a flowchart of a method for adjusting the blast furnace slag flushing water flow rate according to another embodiment of this application. This figure describes another process for adjusting the blast furnace slag flushing water flow rate, but based on conventional or non-inventive methods, it may include more or fewer operational steps. Specifically, as shown... Figure 5 As shown, the method may include:

[0086] S510, determine the average flushing water flow rate;

[0087] S520 determines the current slag flushing stage marker based on the blast furnace's iron output.

[0088] S530, based on the slag flushing stage indicator, determine the first target coefficient from the second preset coefficient range corresponding to the slag flushing stage indicator;

[0089] S540, determine the product of the average flushing water flow rate and the first target coefficient as the flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray out the flushing water flow rate corresponding to the flushing water flow rate data to flush the slag with high temperature liquid molten slag.

[0090] S550, in response to the absence of residual slag, determines the current slag flushing stage marker as the slag flushing end marker, so as to control the slag water pump to stop spraying slag flushing water.

[0091] According to another embodiment of this application, the implementation of S510-S540 is similar to the implementation of S210-240 described above, and will not be described in detail in this embodiment.

[0092] If it is determined that there is no residual slag at the current moment, it means that all the slag in the current operation has been flushed away, and the slag flushing operation is completed. Therefore, the current moment is marked as the end of the slag flushing stage, so as to control the slag water pump to stop spraying slag flushing water.

[0093] To make this application clearer, a specific implementation method is described below.

[0094] With a certain 2000m 3 Taking a high-grade blast furnace as an example, based on parameters such as daily iron production, slag-to-iron ratio, daily iron production frequency, slag-to-water ratio, and slag flushing time, the slag flushing water flow rate at each stage is determined as follows: Average slag flushing water flow rate (slag flushing water flow rate data corresponding to the initial and later stages of slag flushing) Q2 = 1900 m³ / h 3 / h; Minimum flushing water flow rate (flushing water flow rate data corresponding to the flushing preparation period) Q1 = 1400m 3 / h; Maximum flushing water flow rate (flushing water flow rate data corresponding to the mid-stage and late-stage flushing indicators) Q3 = 2400 m³ / h 3 / h.

[0095] In the initial stage, when the blast furnace taphole is opened, only molten iron should appear under normal blast furnace conditions. However, it is necessary to consider that slag may also appear if the blast furnace condition is poor. Therefore, the slag flushing water pump needs to be turned on to prepare for slag flushing. The slag flushing water flow rate should be controlled at the minimum slag flushing water flow rate Q1 = 1400 m³ / h. 3 / h.

[0096] When the taphole expands to a certain extent, the curves of molten iron flow rate and slag flow rate both tend to be stable (at this point, the amount of slag produced per unit time, as determined by the amount of molten iron produced by weighing the molten iron, also tends to be uniform). At this time, the slag flushing flow rate should be increased to an average slag flushing water flow rate of Q2 = 1900 m³ / h.3 / h.

[0097] As the iron tapping process nears its end, the iron output begins to decline, while the slag output reaches its peak and remains stable for a period. At this time, the slag flushing water flow rate should be the maximum, Q3 = 2400 m³ / h. 3 / h.

[0098] After the blast furnace taphole is plugged, one tapping cycle is completed. However, there is still residual slag in the slag trough at this time, and the amount of slag will gradually decrease. The slag flushing water flow rate can be reduced to the average slag flushing water flow rate Q2 = 1900 m³ / h. 3 / h.

[0099] After the slag flushing is completed, turn off the slag flushing water pump.

[0100] Therefore, the method for dynamically adjusting the slag flushing water flow rate in the blast furnace water flushing process consists of five steps:

[0101] Step 1: Preparation stage for slag flushing. Turn on the slag flushing water pump and set the slag flushing water flow rate to Q1 = 1400 m³ / h. 3 / h;

[0102] Step 2: In the initial stage of slag flushing, during the stage of increasing slag volume, the slag flushing water flow rate is increased to Q2 = 1900 m³ / h. 3 / h;

[0103] Step 3: Mid-stage of slag flushing (late stage of iron tapping), the stage with the largest amount of molten slag, the slag flushing water flow rate increases to Q3 = 2400 m³ / h 3 / h;

[0104] Step 4: In the later stage of slag flushing, when the amount of molten slag decreases, the slag flushing water flow rate is reduced to Q2 = 1900 m³ / h. 3 / h;

[0105] Step 5: After the slag flushing is complete, turn off the slag flushing water pump.

[0106] Based on this, compared to the uniform peak flushing water flow rate throughout the entire process (2400m³), 3 With an average of 12 iron tapping operations per day, each tapping lasting approximately 90 minutes, the blast furnace slag flushing water flow rate adjustment method of this application is adopted to adjust the slag flushing water flow rate in stages. This allows for targeted and dynamic adjustment of the slag flushing water flow rate at each stage of iron tapping and slag tapping, resulting in a saving of 146.36 kW / h of electricity per tapping operation and an annual saving of 1.23 million kWh.

[0107] Figure 6A The diagram shown is a structural schematic of a blast furnace slag flushing water flow adjustment device according to an embodiment of this application. As shown in 6A, it includes:

[0108] The first determining unit 610 is used to determine the average slag flushing water flow rate;

[0109] The second determining unit 620 is used to determine the current slag flushing stage identifier based on the blast furnace's iron output. The slag flushing stage identifier includes the slag flushing preparation period identifier, the initial slag flushing period identifier, the middle slag flushing period identifier, and the later slag flushing period identifier.

[0110] The third determining unit 630 is used to determine a first target coefficient from a preset coefficient range corresponding to the slag flushing stage indicator based on the slag flushing stage indicator. Specifically, the maximum value in the first preset coefficient range corresponding to the slag flushing preparation stage indicator is less than a preset data, and the minimum value in the second preset coefficient range corresponding to the slag flushing mid-stage indicator is greater than a preset data; and

[0111] The determination and control unit 640 is used to determine the product of the average flushing water flow rate and the first target coefficient as the flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray the flushing water flow rate corresponding to the flushing water flow rate data to flush the slag with high temperature liquid molten slag.

[0112] According to another embodiment of this application, the determination and control unit 640 is further configured to: after the current slag flushing stage is identified as the late slag flushing stage, in response to the absence of residual molten slag, determine the current slag flushing stage as the slag flushing end stage, so as to control the slag water pump to stop spraying slag flushing water.

[0113] Since the principle of the above-mentioned device in solving the problem is similar to that of the above-mentioned method, the implementation of the above-mentioned device can refer to the implementation of the above-mentioned method, and the repeated parts will not be described again.

[0114] Figure 6B The diagram shown is a structural schematic of a blast furnace slag flushing water flow adjustment device according to another embodiment of this application. As shown in 6B, the first determining unit 610 further includes,

[0115] The first sub-determining unit 6111 is used to determine the amount of slag per tap based on the blast furnace tapping parameters; and

[0116] The second sub-determination unit 6112 is used to determine the average flushing water flow rate based on the single slag volume, slag-to-water ratio, and flushing time.

[0117] Since the principle of the above-mentioned device in solving the problem is similar to that of the above-mentioned method, the implementation of the above-mentioned device can refer to the implementation of the above-mentioned method, and the repeated parts will not be described again.

[0118] Figure 6C The diagram shown is a structural schematic of a blast furnace slag flushing water flow adjustment device according to another embodiment of this application. As shown in 6C, the first determining unit 610 further includes,

[0119] Judgment unit 6121 is used to determine whether there is peak data of slag flushing water at present;

[0120] The determination and execution unit 6122 is used to determine the amount of slag per cycle based on the blast furnace tapping parameters in response to the absence of peak slag flushing water data.

[0121] Since the principle of the above-mentioned device in solving the problem is similar to that of the above-mentioned method, the implementation of the above-mentioned device can refer to the implementation of the above-mentioned method, and the repeated parts will not be described again.

[0122] Figure 6D The diagram shown is a structural schematic of a blast furnace slag flushing water flow adjustment device according to another embodiment of this application. As shown in 6D, the first determining unit 610 further includes,

[0123] The third sub-determination unit 6131 is configured to, in response to the presence of peak flushing water data, determine a second target coefficient from a second preset coefficient interval corresponding to the mid-term flushing indicator; and

[0124] The calculation and determination unit 6132 is used to calculate the peak data of flushing water divided by the second target coefficient to obtain the third data, and to determine the third data as the average flushing water flow rate.

[0125] Since the principle of the above-mentioned device in solving the problem is similar to that of the above-mentioned method, the implementation of the above-mentioned device can refer to the implementation of the above-mentioned method, and the repeated parts will not be described again.

[0126] Furthermore, this application embodiment also provides a blast furnace, including a control system and a slag water pump; specifically, the control system determines the average slag flushing water flow rate; based on the blast furnace's iron tapping rate, it determines the current slag flushing stage identifier, which includes a slag flushing preparation stage identifier, a slag flushing initial stage identifier, a slag flushing mid-stage identifier, and a slag flushing late-stage identifier; based on the slag flushing stage identifier, it determines a first target coefficient from a preset coefficient range corresponding to the slag flushing stage identifier, specifically, the maximum value in the first preset coefficient range corresponding to the slag flushing preparation stage identifier is less than a preset data, and the minimum value in the second preset coefficient range corresponding to the slag flushing mid-stage identifier is greater than a preset data; and it determines the product of the average slag flushing water flow rate and the first target coefficient as the slag flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray the slag flushing water flow rate corresponding to the slag flushing water flow rate data for high-temperature liquid molten slag flushing.

[0127] Specifically, the control system can implement the above operations in the same way as the above method. Therefore, the implementation of the above blast furnace can be referred to the implementation of the above method. Repeated parts will not be repeated.

[0128] like Figure 7The diagram illustrates the structure of a computer device according to an embodiment of this application. The apparatus in this application can be the computer device described in this embodiment, executing the methods of this application. The computer device 702 may include one or more processing devices 704, such as one or more central processing units (CPUs), each of which can implement one or more hardware threads. The computer device 702 may also include any storage resource 706 for storing information of any kind, such as code, settings, data, etc. Non-limitingly, for example, the storage resource 706 may include any one or more combinations of the following: any type of RAM, any type of ROM, flash memory, hard disk, optical disk, etc. More generally, any storage resource can use any technology to store information. Further, any storage resource can provide volatile or non-volatile retention of information. Further, any storage resource can represent a fixed or removable component of the computer device 702. In one case, when the processing device 704 executes associated instructions stored in any storage resource or combination of storage resources, the computer device 702 can perform any operation of the associated instructions. The computer device 702 also includes one or more drive mechanisms 708 for interacting with any storage resource, such as a hard disk drive mechanism, an optical disk drive mechanism, etc.

[0129] Computer device 702 may also include an input / output module 710 (I / O) for receiving various inputs (via input device 712) and providing various outputs (via output device 714). A specific output mechanism may include a presentation device 716 and an associated graphical user interface (GUI) 718. In other embodiments, the input / output module 710 (I / O), input device 712, and output device 714 may be omitted, and the device may function solely as a computer device within a network. Computer device 702 may also include one or more network interfaces 720 for exchanging data with other devices via one or more communication links 722. One or more communication buses 724 couple the components described above together.

[0130] Communication link 722 can be implemented in any way, such as via a local area network, a wide area network (e.g., the Internet), a point-to-point connection, or any combination thereof. Communication link 722 may include any combination of hardwired links, wireless links, routers, gateway functions, name servers, etc., governed by any protocol or combination of protocols.

[0131] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method.

[0132] This application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the above-described method.

[0133] 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-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0134] 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 processor, 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, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0135] 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.

[0136] 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.

[0137] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A method for adjusting the flow rate of blast furnace slag flushing water, characterized in that, include: Determine the average flushing water flow rate; Based on the iron output of the blast furnace, the current slag flushing stage marker is determined. The slag flushing stage marker includes the slag flushing preparation stage marker, the initial slag flushing stage marker, the middle slag flushing stage marker, and the late slag flushing stage marker. Based on the slag flushing stage identifier, a first target coefficient is determined from a preset coefficient range corresponding to the slag flushing stage identifier, wherein the maximum value in the first preset coefficient range corresponding to the slag flushing preparation period identifier is less than a preset data, and the minimum value in the second preset coefficient range corresponding to the slag flushing mid-term identifier is greater than the preset data. as well as The product of the average flushing water flow rate and the first target coefficient is determined as the flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray out the flushing water flow rate corresponding to the flushing water flow rate data to flush the high-temperature liquid molten slag.

2. The method according to claim 1, characterized in that, The determination of the average flushing water flow rate includes: Determine the slag volume per tap based on the blast furnace tapping parameters; and The average flushing water flow rate is determined based on the single slag volume, slag-to-water ratio, and flushing time.

3. The method according to claim 2, characterized in that, The blast furnace tapping parameters include daily tapping rate, slag-to-iron ratio, and number of tapping cycles.

4. The method according to claim 3, characterized in that, The determination of the single slag quantity based on the blast furnace tapping parameters includes: The product of the daily iron production and the slag-to-iron ratio is determined as the first data; and The first parameter is calculated by dividing it by the number of times iron is produced per day to obtain the second data, and the second data is determined to be the amount of slag produced per batch.

5. The method according to claim 2, characterized in that, Before determining the amount of slag per batch based on the blast furnace tapping parameters, the following steps are also included: Determine if peak data for slag flushing water is currently available; In response to the absence of the peak data for slag flushing water, the process of determining the amount of slag per cycle based on the blast furnace tapping parameters is executed.

6. The method according to claim 5, characterized in that, After determining whether peak flushing water data exists, the following steps are also included: In response to the presence of the peak flushing water data, a second target coefficient is determined from the second preset coefficient interval corresponding to the mid-term flushing indicator; and The peak flushing water data is calculated and divided by the second target coefficient to obtain the third data, and the third data is determined as the average flushing water flow rate.

7. The method according to claim 2, characterized in that, The determination of the average flushing water flow rate based on the single slag volume, slag-to-water ratio, and flushing time includes: The product of the slag-to-water ratio and the slag flushing time is determined as the fourth data point; and The single slag volume is calculated and divided by the fourth data to obtain the fifth data, and the fifth data is determined as the average slag flushing water flow rate.

8. The method according to claim 1, characterized in that, The determination of the slag flushing stage marker based on the blast furnace's iron output includes: In response to the blast furnace's iron tapping rate changing from zero to a positive number, the current slag flushing stage is identified as the slag flushing preparation period identifier; and In response to the blast furnace's iron tapping rate changing from positive to zero and the presence of residual slag, the current slag flushing stage is identified as the late slag flushing stage.

9. The method according to claim 1, characterized in that, The determination of the slag flushing stage marker based on the blast furnace's iron output includes: For each time moment, determine the rate of change of iron output corresponding to that time moment, wherein the interval between any two of those times moments is the same; In response to the blast furnace's iron tapping rate being positive, and the rate of change of the iron tapping rate gradually increasing and then gradually decreasing, becoming less than or equal to a first preset threshold and greater than zero, the current slag flushing stage is determined as the initial slag flushing stage; and In response to the blast furnace's iron tapping rate being positive and the rate of change of the iron tapping rate being less than zero, the current slag flushing stage is determined as the mid-stage slag flushing stage.

10. The method according to claim 1, characterized in that, Also includes: After the current slag flushing stage is marked as the late slag flushing stage, in response to the absence of residual molten slag, the current slag flushing stage is marked as the slag flushing end stage, so as to control the slag water pump to stop spraying slag flushing water.

11. The method according to claim 1, characterized in that, The preset data is included in the third preset coefficient range corresponding to the initial slag flushing indicator and the later slag flushing indicator.

12. A blast furnace slag flushing water flow rate adjustment device, characterized in that, include: The first determining unit is used to determine the average flushing water flow rate. The second determining unit is used to determine the current slag flushing stage identifier based on the iron output of the blast furnace. The slag flushing stage identifier includes the slag flushing preparation period identifier, the initial slag flushing identifier, the middle slag flushing identifier, and the late slag flushing identifier. The third determining unit is used to determine a first target coefficient from a preset coefficient range corresponding to the slag flushing stage identifier based on the slag flushing stage identifier, wherein the maximum value in the first preset coefficient range corresponding to the slag flushing preparation period identifier is less than a preset data, and the minimum value in the second preset coefficient range corresponding to the slag flushing mid-term identifier is greater than the preset data. as well as The determination and control unit is used to determine the product of the average flushing water flow rate and the first target coefficient as the flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray the flushing water flow rate corresponding to the flushing water flow rate data to flush the high-temperature liquid molten slag.

13. The apparatus according to claim 12, characterized in that, The first determining unit further includes: The first sub-determining unit is used to determine the amount of slag per tap based on the blast furnace tapping parameters; and The second sub-determination unit is used to determine the average flushing water flow rate based on the single slag volume, slag-to-water ratio, and flushing time.

14. The apparatus according to claim 13, characterized in that, The first determining unit further includes: The judgment unit is used to determine whether there is peak data for flushing slag water at present; The determination and execution unit is used to determine the amount of slag per cycle based on the blast furnace tapping parameters in response to the absence of the peak data of the slag flushing water.

15. The apparatus according to claim 14, characterized in that, The first determining unit further includes: The third sub-determination unit is configured to, in response to the presence of the peak flushing water data, determine a second target coefficient from a second preset coefficient interval corresponding to the mid-term flushing indicator; and The calculation and determination unit is used to calculate the peak data of the flushing water divided by the second target coefficient to obtain the third data, and to determine the third data as the average flushing water flow rate.

16. The apparatus according to claim 12, characterized in that, The determination and control unit is further configured to: after the current slag flushing stage is identified as the late slag flushing stage, in response to the absence of residual molten slag, determine the current slag flushing stage as the slag flushing end stage, so as to control the slag water pump to stop spraying slag flushing water.

17. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method of any one of claims 1-11.

18. 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 method of any one of claims 1-11.

19. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the method according to any one of claims 1-11.

20. A blast furnace, comprising a control system and a slag water pump; characterized in that, The control system determines the average slag flushing water flow rate; based on the blast furnace's iron tapping rate, it determines the current slag flushing stage identifier, which includes a slag flushing preparation stage identifier, an initial slag flushing stage identifier, a mid-slag flushing stage identifier, and a late-slag flushing stage identifier; based on the slag flushing stage identifier, it determines a first target coefficient from a preset coefficient range corresponding to the slag flushing stage identifier, wherein the maximum value in the first preset coefficient range corresponding to the slag flushing preparation stage identifier is less than a preset data, and the minimum value in the second preset coefficient range corresponding to the mid-slag flushing stage identifier is greater than the preset data; and it determines that the product of the average slag flushing water flow rate and the first target coefficient is the slag flushing water flow rate data corresponding to the current time, so as to control the slag water pump to spray the slag flushing water flow rate corresponding to the slag flushing water flow rate data for high-temperature liquid molten slag flushing.

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