On-line analysis method, device, storage medium and equipment for chemical composition of molten iron in a molten iron tank

Abstract

The present invention discloses an online analysis method, device, storage medium and equipment for the chemical composition of molten iron in a molten iron tank, wherein the online analysis method calculates the chemical composition of any detection time t in the molten iron discharge cycle according to the molten iron flow information #imgabs0# corresponding to different times and the content information of element i in the molten iron before flowing into the molten iron tank. k The total weight of the molten iron in the molten iron tank and any detection time t during the molten iron discharge cycle k The average content information of element i in the molten iron in the molten iron tank at the time of the discharge is obtained. Thus, the online analysis of the weight and chemical composition of the molten iron in the molten iron tank at any detection time in the entire discharge cycle is realized, and the method is real-time and fast, thus providing key technical support for the online detection and analysis of the chemical composition of the molten iron in the molten iron tank during steel smelting.

Description

Technical Field

[0001] The invention belongs to the technical field of high-temperature melt composition detection, and specifically relates to an online analysis method, device, storage medium and equipment for the chemical composition of molten iron in a molten iron tank. Background Art

[0002] Hot metal from blast furnaces is the main raw material for the steelmaking process. The chemical composition of hot metal is crucial to the flux required for hot metal pretreatment before steelmaking and the quality of steelmaking. At present, the chemical composition of molten iron in the hot metal tank is often analyzed by offline laboratory analysis after manual sampling. The offline detection process is time-consuming and the test results are seriously delayed. In addition, due to the differences in the chemical composition of hot metal during the hot metal discharge cycle, the sampling test has sampling representativeness problems, and it is impossible to timely and effectively feedback the chemical composition information of the molten iron in the hot metal tank. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the present invention is to propose an online analysis method for the chemical composition of molten iron in a molten iron tank. The method realizes the online analysis of the weight and chemical composition of the molten iron in the molten iron tank at any detection time during the entire discharge cycle, and the method is real-time and fast, thereby providing key technical support for the online detection and analysis of the chemical composition of the molten iron in the molten iron tank during steel smelting.

[0004] A second objective of the present invention is to provide a computer-readable storage medium.

[0005] A third object of the present invention is to provide an analysis device.

[0006] A fourth object of the present invention is to provide an on-line analysis device for the chemical composition of molten iron in a molten iron tank.

[0007] To achieve the above objectives, a first aspect of an embodiment of the present invention provides an online analysis method for the chemical composition of molten iron in a molten iron tank. According to an embodiment of the present invention, the method comprises:

[0008] (1) During the process of molten iron flowing into the molten iron tank, obtain the molten iron flow information corresponding to different times And the content of element i in the molten iron before it flows into the molten iron ladle

[0009] (2) According to the molten iron flow information flowing into the molten iron tank at different times Calculate any detection time t within the molten iron discharge cycle k Total weight of molten iron in the molten iron tank And the molten iron flow information corresponding to different moments flowing into the molten iron tank The content information of element i in the molten iron before it flows into the molten iron ladle at different times Calculate any detection time t within the molten iron discharge cycle k The average content of element i in the molten iron in the molten iron tank at information.

[0010] According to the on-line analysis method of the chemical composition of molten iron in the molten iron tank according to the embodiment of the present invention, the method is based on the molten iron flow information corresponding to different moments. and the content of element i in the molten iron before it flows into the ladle Calculate any detection time t within the molten iron discharge cycle k Total weight of molten iron in the molten iron tank And any detection time t during the molten iron discharge cycle k The average content of element i in the molten iron in the molten iron tank at Thus, the weight and chemical composition of the molten iron in the molten iron tank at any detection time in the entire discharge cycle are analyzed online, and the method is real-time and fast, thus providing key technical support for the online detection and analysis of the chemical composition of the molten iron in the molten iron tank during steel smelting.

[0011] In addition, the online analysis method for the chemical composition of molten iron in the molten iron ladle according to the above embodiment of the present invention may also have the following additional technical features:

[0012] In some embodiments of the present invention, in step (1), an online component analyzer is used to obtain the content information of element i in the molten iron before it flows into the molten iron ladle at different times.

[0013] In some embodiments of the present invention, in step (1), a flow meter is used to obtain the molten iron flow information corresponding to different moments flowing into the molten iron tank.

[0014] In some embodiments of the present invention, in step (1), during the molten iron discharge cycle, the molten iron flow rate information flowing into the molten iron tank at different times is obtained at intervals of 2-6 minutes. And the content of element i in the molten iron before it flows into the molten iron ladle

[0015] In some embodiments of the present invention, in step (1), during the molten iron discharge cycle, at least 20 corresponding molten iron flow information flowing into the molten iron tank at different times is obtained. And the content of element i in the molten iron before it flows into the molten iron ladle

[0016] In some embodiments of the present invention, in step (1), the element i is at least one of Si, S, Mn, Ti, Cu, P, Sn, As and C.

[0017] In some embodiments of the present invention, in step (2), during the molten iron discharge cycle, any detection time t k Total weight of molten iron flowing into the molten iron tank The calculation formula is:

[0018]

[0019] Among them, Δt1=t1-t0, Δt2=t2-t1, Δt k =t k -t k-1 , t0 represents the starting detection time, t1 represents the first detection time, t2 represents the second detection time, t k-1 represents the k-1th detection time, t k represents the kth detection time.

[0020] In some embodiments of the present invention, in step (2), during the molten iron discharge cycle, at any time t k The total weight of element i in the molten iron flowing into the molten iron ladle is:

[0021]

[0022] Among them, Δt1=t1-t0, Δt2=t2-t1, Δt k =t k -t k-1 , t0 represents the starting detection time, t1 represents the first detection time, t2 represents the second detection time, t k-1 represents the k-1th detection time, t k represents the kth detection time;

[0023] Then, during the molten iron discharge cycle, at any time t k The content of element i in the molten iron flowing into the molten iron tank at the time is:

[0024]

[0025] In another aspect of the present invention, a computer-readable storage medium is proposed. According to an embodiment of the present invention, an online analysis program for the chemical composition of molten iron in a molten iron ladle is stored on the computer-readable storage medium. When the online analysis program for the chemical composition of molten iron in a molten iron ladle is executed by a processor, an online analysis method for the chemical composition of molten iron in a molten iron ladle is implemented.

[0026] In the third aspect of the present invention, an analysis device is proposed. According to an embodiment of the present invention, the analysis device includes a memory, a processor, and an online analysis program for the chemical composition of the molten iron in the molten iron ladle, which is stored in the memory and can be run on the processor. When the processor executes the online analysis program for the chemical composition of the molten iron in the molten iron ladle, the online analysis method for the chemical composition of the molten iron in the molten iron ladle is implemented.

[0027] In a fourth aspect of the present invention, the present invention provides an online analysis device for the chemical composition of molten iron in a molten iron ladle, the device comprising:

[0028] The acquisition module is used to obtain the molten iron flow information flowing into the molten iron tank at different times And the content of element i in the molten iron before it flows into the molten iron ladle

[0029] A calculation module is used to calculate the molten iron flow rate information flowing into the molten iron tank at different times. Calculate any detection time t within the molten iron discharge cycle k Total weight of molten iron in the molten iron tank And the molten iron flow information corresponding to different moments flowing into the molten iron tank The content information of element i in the molten iron before it flows into the molten iron ladle at different times Calculate any detection time t within the molten iron discharge cycle k The average content of element i in the molten iron in the molten iron tank at information.

[0030] According to the on-line analysis device for the chemical composition of molten iron in a molten iron ladle according to the embodiment of the present invention, on-line analysis of the weight and chemical composition of the molten iron in the molten iron ladle at any detection time during the entire discharge cycle is realized, and the method is real-time and rapid, thereby providing key technical support for on-line detection and analysis of the chemical composition of the molten iron in the molten iron ladle in steel smelting.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] Figure 1 It is a schematic flow chart of an online analysis method of the chemical composition of molten iron in a molten iron tank according to an embodiment of the present invention;

[0034] Figure 2This is a schematic diagram of the change of molten iron flow rate over time obtained by the flow meter in Example 1;

[0035] Figure 3 This is a schematic diagram of the change of Mn element content in molten iron over time in Example 1. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In one aspect of the present invention, the present invention provides an online analysis method for the chemical composition of molten iron in a molten iron ladle. Figure 1 , the method comprising:

[0038] S100: During the process of molten iron flowing into the molten iron tank, obtain the molten iron flow rate information flowing into the molten iron tank at different times And the content of element i in the molten iron before it flows into the molten iron ladle

[0039] Specifically, the embodiment of the present invention uses an online component analyzer to obtain the content information of element i in the molten iron before it flows into the molten iron tank at different times. The above content information Refers to mass percentage information.

[0040] The online composition analyzer uses an optical system to focus high-energy pulsed lasers on the high-temperature molten iron to be tested to generate plasma, and then uses a spectral detector to detect the spectral data of the plasma signal light. Finally, by processing the spectral data, it realizes online detection of the composition of the molten iron before it flows into the molten iron tank, and can obtain the content information of a certain set element or several set elements in the molten iron.

[0041] It should be noted that the online component analyzer can detect the content of the set component contained in the surface of the object at a frequency of 20 times per second. However, due to the needs of on-site production and the high-frequency detection limitation of the analyzer itself, the present invention sets the detection of the content of a set element or several set elements in the molten iron before flowing into the molten iron tank once every 2-6 minutes, so as to obtain the content information of element i in the molten iron before flowing into the molten iron tank at different times. Similarly, the present invention sets the detection of the molten iron flow rate information flowing into the molten iron tank once every 2-6 minutes, so as to obtain the molten iron flow rate information flowing into the molten iron tank corresponding to different times.

[0042] Specifically, the above-mentioned element i is the element set in the online component analyzer, and the online component analyzer can only detect the content of the set element. For example, the set element i can be at least one of Si, S, Mn, Ti, Cu, P, Sn, As and C.

[0043] S200: According to the molten iron flow information corresponding to the different moments Calculate any detection time t within the molten iron discharge cycle k Total weight of molten iron in the molten iron tank And the molten iron flow information corresponding to different moments flowing into the molten iron tank The content information of element i in the molten iron before it flows into the molten iron ladle at different times Calculate any detection time t within the molten iron discharge cycle k The average content of element i in the molten iron in the molten iron tank at information.

[0044] Specifically, during the molten iron discharge cycle, any detection time t k Total weight of molten iron flowing into the molten iron tank The calculation formula is:

[0045]

[0046] Among them, Δt1=t1-t0, Δt2=t2-t1, Δt k =t k -t k-1 , t0 represents the starting detection time, t1 represents the first detection time, t2 represents the second detection time, t k-1 represents the k-1th detection time, t k represents the kth detection time.

[0047] It should be noted that, in the embodiment of the present invention, any detection time t k The detection time t before and adjacent to the detection time k-1 As a small segment, Δt k =t k -t k-1 , and then the small detection time and the molten iron flow information flowing into the molten iron tank corresponding to the detection moment are calculated. By multiplying, we can get the total weight of the molten iron flowing into the molten iron tank during the short detection time. For example, the time between the first detection time t1 and the starting detection time t0 is Δt1=t1-t0, and the molten iron flow information corresponding to the first detection time is The multiplication of the two gives the total weight of the molten iron flowing into the molten iron tank between the first detection time t1 and the start detection time t0. For another example, the time between the second detection time t2 and the first detection time t1 is Δt2=t2-t1, and the molten iron flow information corresponding to the second detection time is The multiplication of the two gives the total weight of the molten iron flowing into the molten iron tank between the second detection time t2 and the first detection time t1. Finally, the weight of the molten iron flowing into the molten iron tank in each detection segment is added together to obtain the total weight of the molten iron flowing into the molten iron tank from the start detection time to the kth detection time, as shown in the above formula.

[0048] Specifically, during the molten iron discharge cycle, at any time t k The total weight of element i in the molten iron flowing into the molten iron ladle is: Among them, Δt1=t1-t0, Δt2=t2-t1, Δt k =t k -t k-1 , t0 represents the starting detection time, t1 represents the first detection time, t2 represents the second detection time, t k-1 represents the k-1th detection time, t k represents the kth detection time;

[0049] Then, during the molten iron discharge cycle, at any time t k The content of element i in the molten iron flowing into the molten iron tank at the time is:

[0050]

[0051] As mentioned above, in the embodiment of the present invention, any detection time t k The detection time t before and adjacent to the detection time k-1 As a small segment, Δt k =t k -t k-1 , and then the small detection time and the molten iron flow information flowing into the molten iron tank corresponding to the detection moment are calculated. And the content information of element i in the molten iron before flowing into the molten iron tank corresponding to the detection time By multiplying, we can get the total weight of element i in the molten iron flowing into the molten iron tank during the short detection time. For example, the time between the first detection time t1 and the starting detection time t0 is Δt1=t1-t0, and the molten iron flow information corresponding to the first detection time is The content information of element i in the molten iron corresponding to the first detection moment is: The product of the three becomes the total weight of element i in the molten iron flowing into the molten iron tank between the first detection time t1 and the starting detection time t0. For another example, the time between the second detection time t2 and the first detection time t1 is Δt2=t2-t1, and the molten iron flow information corresponding to the second detection time is The content information of element i in the molten iron corresponding to the second detection time is The product of the three gives the total weight of element i in the molten iron flowing into the molten iron tank between the second detection time t2 and the first detection time t1. Finally, the weight of element i in the molten iron flowing into the molten iron tank in each detection segment is added together to obtain the total weight of element i in the molten iron flowing into the molten iron tank from the starting detection time to the kth detection time, as shown in the above formula.

[0052] Specifically, in step S100, during the molten iron discharge cycle, at least 20 molten iron flow information corresponding to different moments flowing into the molten iron tank is obtained. And the content of element i in the molten iron before it flows into the molten iron ladle In this way, it can be ensured that any detection time t within the calculated molten iron discharge cycle k Total weight of molten iron in the molten iron tank And any detection time t during the molten iron discharge cycle k The average content of element i in the molten iron in the molten iron tank at Accuracy of information. It is understood that the more times the test is performed, the more accurate the calculated results will be.

[0053] According to the on-line analysis method of the chemical composition of molten iron in the molten iron tank according to the embodiment of the present invention, the method is based on the molten iron flow information corresponding to different moments. and the content of element i in the molten iron before it flows into the ladle Calculate any detection time t within the molten iron discharge cycle k Total weight of molten iron in the molten iron tank And any detection time t during the molten iron discharge cycle k The average content of element i in the molten iron in the molten iron tank at Thus, the weight and chemical composition of the molten iron in the molten iron tank at any detection time in the entire discharge cycle are analyzed online, and the method is real-time and fast, thus providing key technical support for the online detection and analysis of the chemical composition of the molten iron in the molten iron tank during steel smelting.

[0054] In another aspect of the present invention, a computer-readable storage medium is proposed. According to an embodiment of the present invention, an online analysis program for the chemical composition of molten iron in a molten iron ladle is stored on the computer-readable storage medium. When the online analysis program for the chemical composition of molten iron in a molten iron ladle is executed by a processor, an online analysis method for the chemical composition of molten iron in a molten iron ladle is implemented.

[0055] In the third aspect of the present invention, an analysis device is proposed. According to an embodiment of the present invention, the analysis device includes a memory, a processor, and an online analysis program for the chemical composition of the molten iron in the molten iron ladle, which is stored in the memory and can be run on the processor. When the processor executes the online analysis program for the chemical composition of the molten iron in the molten iron ladle, the online analysis method for the chemical composition of the molten iron in the molten iron ladle is implemented.

[0056] In a fourth aspect of the present invention, the present invention provides an online analysis device for the chemical composition of molten iron in a molten iron ladle, the device comprising:

[0057] The acquisition module is used to obtain the molten iron flow information flowing into the molten iron tank at different times And the content of element i in the molten iron before it flows into the molten iron ladle

[0058] A calculation module is used to calculate the molten iron flow rate information flowing into the molten iron tank at different times. Calculate any detection time t within the molten iron discharge cycle k Total weight of molten iron in the molten iron tank And the molten iron flow information corresponding to different moments flowing into the molten iron tank The content information of element i in the molten iron before it flows into the molten iron ladle at different times Calculate any detection time t within the molten iron discharge cycle k The average content of element i in the molten iron in the molten iron tank at information.

[0059] According to the on-line analysis device for the chemical composition of molten iron in a molten iron ladle according to the embodiment of the present invention, on-line analysis of the weight and chemical composition of the molten iron in the molten iron ladle at any detection time during the entire discharge cycle is realized, and the method is real-time and rapid, thereby providing key technical support for on-line detection and analysis of the chemical composition of the molten iron in the molten iron ladle in steel smelting.

[0060] It should be noted that the specific implementation method of the online analysis device for the chemical composition of the molten iron in the molten iron ladle in the embodiment of the present invention is similar to the specific implementation method of the online analysis method for the chemical composition of the molten iron in the molten iron ladle in the embodiment of the present invention. Please refer to the description of the method part for details. In order to reduce redundancy, it will not be repeated here.

[0061] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0062] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0063] The embodiments of the present invention are described in detail below. It should be noted that the embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0064] Example 1

[0065] This embodiment provides an online analysis method for the chemical composition of molten iron in a molten iron tank, comprising the following steps:

[0066] 1) During the process of molten iron flowing into the molten iron ladle, an online component analyzer is used to obtain the Mn content information of the molten iron before flowing into the molten iron ladle at different times. As shown in Table 1. The schematic diagram of the change of Mn content in molten iron over time is shown in the attached figure. Figure 3 shown.

[0067] In the process of molten iron flowing into the molten iron tank, a flow meter is used to obtain the molten iron flow information flowing into the molten iron tank at different times. As shown in Table 2. The schematic diagram of the change of molten iron flow rate obtained by the flow meter over time is shown in the attached Figure 2 shown.

[0068] Table 1

[0069]

[0070] Table 1 continued

[0071]

[0072]

[0073] Table 1 continued

[0074]

[0075] Table 1 continued

[0076]

[0077] Table 2

[0078]

[0079] Table 2 continued

[0080]

[0081] Table 2 continued

[0082]

[0083] Table 2 continued

[0084]

[0085] 2) According to the molten iron flow information of the molten iron tank at different times in Table 2 Calculate at the detection time t k = Total weight of molten iron flowing into the molten iron tank at 120 minutes

[0086]

[0087]

[0088] 3) According to the Mn content information of the molten iron before flowing into the molten iron ladle at different times in Table 1 Calculate at the detection time t k =Total weight of elemental Mn in the molten iron flowing into the molten iron ladle at 120 min:

[0089]

[0090] So we can calculate the detection time t k =The content of element i in the molten iron flowing into the molten iron tank at 120 min is:

[0091]

[0092] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0093] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An on-line analysis method for the chemical composition of molten iron in a molten iron tank, characterized in that: include: (1) During the process of molten iron flowing into the molten iron tank, obtain the molten iron flow information corresponding to different times And the content of element i in the molten iron before it flows into the molten iron ladle ; (2) According to the molten iron flow information flowing into the molten iron tank at different times , calculate any detection time in the molten iron discharge cycle Total weight of molten iron in the ladle ; and the molten iron flow information corresponding to the different moments flowing into the molten iron tank The content information of element i in the molten iron before it flows into the molten iron ladle at different times , calculate any detection time in the molten iron discharge cycle The average content of element i in the molten iron in the molten iron tank at information; In step (2), during the molten iron discharge cycle, at any time Elements in the molten iron flowing into the molten iron tank i The total weight is: in, , , , t0 represents the starting detection time, t1 represents the first detection time, t2 represents the second detection time, t k-1 represents the k-1th detection time, t k represents the kth detection time; Then, during the molten iron discharge cycle, at any time Elements in the molten iron flowing into the molten iron tank i The content is:

2. The method according to claim 1, characterized in that In step (1), an online component analyzer is used to obtain the content information of element i in the molten iron before it flows into the molten iron ladle at different times. .

3. The method according to claim 1, characterized in that In step (1), a flow meter is used to obtain the molten iron flow information flowing into the molten iron tank at different times. .

4. The method according to claim 1, characterized in that: In step (1), during the molten iron discharge cycle, the molten iron flow information flowing into the molten iron tank at different times is obtained at intervals of 2-6 minutes. And the content of element i in the molten iron before it flows into the molten iron ladle .

5. The method according to claim 1, characterized in that In step (1), during the molten iron discharge cycle, obtain the molten iron flow information corresponding to at least 20 different times flowing into the molten iron tank. And the content of element i in the molten iron before it flows into the molten iron ladle .

6. The method according to claim 1, characterized in that In step (1), the element i It is at least one of Si, S, Mn, Ti, Cu, P, Sn, As and C.

7. A computer-readable storage medium, characterized in that: An online analysis program for the chemical composition of molten iron in a molten iron ladle is stored thereon, and when the online analysis program for the chemical composition of molten iron in a molten iron ladle is executed by a processor, an online analysis method for the chemical composition of molten iron in a molten iron ladle according to any one of claims 1-6 is implemented.

8. An analysis device, characterized in that The invention comprises a memory, a processor and an online analysis program of the chemical composition of molten iron in a molten iron ladle which is stored in the memory and can be run on the processor. When the processor executes the online analysis program of the chemical composition of molten iron in the molten iron ladle, the online analysis method of the chemical composition of molten iron in the molten iron ladle according to any one of claims 1 to 6 is implemented.

9. An on-line analysis device for the chemical composition of molten iron in a molten iron tank, characterized in that: include: The acquisition module is used to obtain the molten iron flow information flowing into the molten iron tank at different times And the content of element i in the molten iron before it flows into the molten iron ladle ; A calculation module is used to calculate the molten iron flow rate information flowing into the molten iron tank at different times. , calculate any detection time in the molten iron discharge cycle Total weight of molten iron in the ladle ; and the molten iron flow information corresponding to the different moments flowing into the molten iron tank The content information of element i in the molten iron before it flows into the molten iron ladle at different times , calculate any detection time in the molten iron discharge cycle The average content of element i in the molten iron in the molten iron tank at information; During the molten iron discharge cycle, at any time Elements in the molten iron flowing into the molten iron tank i The total weight is: in, , , , t0 represents the starting detection time, t1 represents the first detection time, t2 represents the second detection time, t k-1 represents the k-1th detection time, t k represents the kth detection time; Then, during the molten iron discharge cycle, at any time Elements in the molten iron flowing into the molten iron tank i The content is:

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