Slag surface tension calculation method and related equipment

Abstract

The invention is applicable to the technical field of metal smelting, and provides a slag surface tension calculation method and related equipment, and the method comprises the following steps: obtaining component data and slag temperature of to-be-measured slag; determining component data of the to-be-detected slag based on the component data, and acquiring surface tension and molar volume of each component in the component data; determining the cation radius, the anion radius and the anion group radius in the slag to be detected according to the component data; according to the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius, a calculation model for the to-be-measured slag is established through a Bilt algorithm, the calculation model is solved through a Newton iteration method, and the surface tension of the to-be-measured slag is obtained.

Description

Technical Field

[0001] This application belongs to the technical field of metal smelting, and particularly relates to a calculation method for the surface tension of molten slag and related equipment. Background Art

[0002] Surface tension is one of the important high-temperature properties of metallurgical slag, which significantly affects the wettability, spreading property, contact area and other properties of liquid molten slag during the high-temperature process. Regarding the measurement of liquid surface tension, the currently relatively mature measurement methods are capillary wave method, oscillating jet method, capillary rise method, drop weight method, maximum bubble method, ring pulling method, pendant drop method (including sessile drop method and pendant drop method), and electromagnetic levitation method, etc. However, for liquid slag, due to the high temperature above 1000 °C, it increases the difficulty and complexity of measurement. The measurement methods applied to the surface tension of high-temperature melts mainly include the ring pulling method, electromagnetic levitation method and sessile drop method. However, at high temperatures, it is difficult to measure the surface tension of the melt accurately, resulting in a lack of relevant data.

[0003] The basic principles of the existing technology tests are still based on traditional test methods such as the maximum bubble method and sessile drop method. Moreover, the experimental tests of high-temperature molten slag are still a high-time-consuming and high-energy-consuming work. The experimental results have great limitations in the slag system composition.

[0004] Due to the difficulties in measuring the surface tension of high-temperature molten slag and the limitations of experimental results, calculation models based on experimental data and empirical formulas, using coexistence theory or computer neural systems for calculation, have been reported and have been well predicted and calculated in some molten slags. However, the above calculation models do not essentially consider the structure of molten slag, resulting in inaccurate calculation results of the existing calculation models. Summary of the Invention

[0005] The embodiments of this application provide a calculation method for the surface tension of molten slag and related equipment, aiming at the problem that the existing calculation models do not essentially consider the structure of molten slag, resulting in inaccurate calculation results.

[0006] The embodiments of this application provide a calculation method for the surface tension of molten slag, including the following steps:

[0007] Obtain the composition data and temperature of the molten slag to be measured;

[0008] Based on the composition data, determine the component data of the molten slag to be measured, and obtain the surface tension and molar volume of each component in the component data;

[0009] Determine the cation radius, anion radius and anion group radius in the molten slag to be measured according to the component data;

[0010] According to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius, and the anion group radius, a calculation model for the slag to be measured is established by the Bult algorithm, and the calculation model is solved by the Newton iteration method to obtain the surface tension of the slag to be measured.

[0011] Optionally, the step of determining the cation radius, the anion radius, and the anion group radius in the slag to be measured according to the component data includes:

[0012] When the slag to be measured is an aluminate-based slag, the cation radius, the anion radius, and the anion group radius in the slag to be measured are calculated according to the component data by a preset cation-anion radius ratio, where the mathematical representation of the preset cation-anion radius ratio is:

[0013]

[0014] Optionally, the step of establishing a calculation model for the slag to be measured by the Bult algorithm according to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius, and the anion group radius includes:

[0015] Characterize each component in the component data in a preset manner to obtain a target chemical formula;

[0016] Based on the target chemical formula, substitute it into the preset Bult algorithm to obtain a target formula for each component;

[0017] Substitute the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius, and the anion group radius into the target formula for each component to obtain a calculation model for the slag to be measured, where the mathematical representation of the calculation model is:

[0018]

[0019] Among them, is the cation radius; is the anion radius; is the molar surface area of component i; N0 is Avogadro's constant; V i is the molar volume of molten pure substance i; is the molar fraction of component i in P, and P is the surface or volume.

[0020] Optionally, the step of solving the calculation model by the Newton iteration method includes:

[0021] Solve the calculation model by the Newton iteration method according to a preset iteration accuracy, and the preset iteration accuracy is 10-4 。

[0022] Optionally, the step of solving the calculation model by the Newton iteration method further includes:

[0023] The calculation error ε of solving the calculation model by the Newton iteration method satisfies 0.8% ≤ |ε| ≤ 7.47%.

[0024] In a second aspect, the present application provides a calculation system for the surface tension of molten slag, and the system includes:

[0025] A data acquisition module, configured to acquire the component data and the molten slag temperature of the molten slag to be measured;

[0026] A first calculation module, configured to determine the component data of the molten slag to be measured based on the component data, and acquire the surface tension and molar volume of each component in the component data;

[0027] A second calculation module, configured to determine the cation radius, anion radius, and anion group radius in the molten slag to be measured according to the component data;

[0028] A third calculation module, configured to establish a calculation model for the molten slag to be measured through the Boulter algorithm according to the molten slag temperature, the surface tension, the molar volume, the cation radius, the anion radius, and the anion group radius, and solve the calculation model by the Newton iteration method to obtain the surface tension of the molten slag to be measured.

[0029] In a third aspect, the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the method as described above is implemented.

[0030] In a fourth aspect, the present application provides a computer-readable storage medium, and the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method as described above is implemented.

[0031] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: By obtaining the composition data and temperature of the molten slag to be measured; determining the component data of the molten slag to be measured based on the composition data, and obtaining the surface tension and molar volume of each component in the component data; determining the cation radius, anion radius and anion group radius in the molten slag to be measured according to the component data; according to the molten slag temperature, the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius, establishing a calculation model for the molten slag to be measured through the Bult algorithm, and solving the calculation model through the Newton iteration method to obtain the surface tension of the molten slag to be measured. In addition to avoiding a large amount of cumbersome pyrometallurgical experiments and slag sample preparation work, the tension can be calculated flexibly according to the composition and temperature of the molten slag, and the calculation result is relatively accurate, which can effectively provide theoretical guidance for the metallurgical production process, and effectively save time and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a flowchart of a method for calculating the surface tension of molten slag provided by the present invention;

[0034] Figure 2 It is a flowchart of another method for calculating the surface tension of molten slag provided by the present invention;

[0035] Figure 3 It is a schematic structural diagram of a calculation system for the surface tension of molten slag provided by an embodiment of the present application;

[0036] Figure 4 It is a structural block diagram of an electronic device in an embodiment;

[0037] Figure 5 It is a structural block diagram of a computer storage medium in another embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] In the following description, specific details such as specific system structures and technologies are proposed for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0039] It should be understood that, as used in the specification of this application and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their combinations.

[0040] It should also be understood that the term "and / or" as used in the specification of this application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0041] As used in the specification of this application and the appended claims, the term "if" may be construed, depending on the context, as "when" or "once" or "in response to determining" or "in response to detecting". Similarly, the phrase "if determined" or "if [the described condition or event] is detected" may be construed, depending on the context, as meaning "once determined" or "in response to determining" or "once [the described condition or event] is detected" or "in response to detecting [the described condition or event]".

[0042] In addition, in the description of the specification of this application and the appended claims, the terms "first", "second", "third", etc. are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0043] Reference to "one embodiment" or "some embodiments" or the like described in the specification of this application means that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of this application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0044] In the following description, specific details such as specific system architectures, technologies, etc. are presented for purposes of illustration and not limitation, so as to provide a thorough understanding of the embodiments of this application. However, those skilled in the art should clearly understand that this application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of this application with unnecessary details.

[0045] It should be understood that, as used in the specification of this application and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or their combinations.

[0046] It should also be understood that the term "and / or" as used in the specification of this application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0047] As used in the specification of this application and the appended claims, the term "if" can be construed, depending on the context, as "when", "once", "in response to determining", or "in response to detecting". Similarly, the phrases "if determined" or "if [the described condition or event] is detected" can be construed, depending on the context, as meaning "once determined", "in response to determining", "once [the described condition or event] is detected", or "in response to detecting [the described condition or event]".

[0048] In addition, in the description of the specification of this application and the appended claims, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0049] Reference to "one embodiment" or "some embodiments" or the like described in the specification of this application means that a specific feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of this application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0050] As Figure 1 shown, an embodiment of this application provides a method for calculating the surface tension of molten slag, including the following steps:

[0051] S101. Obtain the component data and the molten slag temperature of the molten slag to be measured;

[0052] Exemplarily, when calculating the surface tension of CaO-Al2O3-based aluminate molten slag, that is, the CaO-Al2O3-based aluminate molten slag is used as the molten slag to be measured, and the component data of the CaO-Al2O3-based aluminate molten slag are Al2O3, CaO, Li2O, and Ce2O3.

[0053] S102. Determine the component data of the slag to be measured based on the composition data, and obtain the surface tension and molar volume of each component in the component data;

[0054] Exemplarily, considering the basic structure of the slag, it is determined that the basic cations in the slag are Ca 2+ , Al 3+ , Li + and Ce 3 + . The main anions in the slag are O 2- . Therefore, the main anion group in the slag is AlO4 5- , and determine the surface tension and molar volume of the main component pure substances (Al2O3, CaO, Li2O, Ce2O3) in the slag.

[0055] S103. Determine the cation radius, anion radius and anion group radius in the slag to be measured according to the component data;

[0056] Exemplarily, experimental measurements and reported results (Metallurgical and Materials Transactions B, 2017, 48(1): 11-16.) show that Al can form AlO4 5- tetrahedral structural units in the slag, which play a skeletal role, and determine the radii of the main cations, anions and anion groups in the slag.

[0057] S104. According to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius, establish a calculation model for the slag to be measured through the Bult algorithm, and solve the calculation model through the Newton iteration method to obtain the surface tension of the slag to be measured.

[0058] In a possible implementation manner, the step of establishing a calculation model for the slag to be measured through the Bult algorithm according to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius includes:

[0059] Characterize each component in the component data in a preset manner to obtain a target chemical formula;

[0060] Based on the target chemical formula, substitute it into the preset Bult algorithm to obtain a target formula for each component;

[0061] Substitute the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius, and the anion group radius into the target formula for each component to obtain a calculation model for the slag to be measured, where the mathematical representation of the calculation model is:

[0062]

[0063] where

[0064] is the cation radius; is the anion radius; is the molar surface area of component i; N0 is Avogadro's constant; V i is the molar volume of molten pure substance i; is the mole fraction of component i in P, where P is the surface or volume.

[0065] Exemplarily, represent the above components as A 1x B 1y 、A 2x B 2y。。。 A ix B iy , and the calculation model is as follows:

[0066]

[0067] In the formula, is the cation radius; is the anion radius; is the molar surface area of component i; N0 is Avogadro's constant; V i is the molar volume of molten pure substance i; is the mole fraction of component i in P (P = surface or volume).

[0068] By obtaining the composition data and slag temperature of the slag to be measured; determining the component data of the slag to be measured based on the composition data, and obtaining the surface tension and molar volume of each component in the component data; determining the cation radius, anion radius, and anion group radius in the slag to be measured according to the component data; according to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius, and the anion group radius, establishing a calculation model for the slag to be measured through the Bull algorithm, and solving the calculation model through the Newton iteration method to obtain the surface tension of the slag to be measured. In addition to avoiding a large amount of cumbersome pyrometallurgical experiments and slag sample preparation work, the tension can be calculated flexibly according to the slag composition and temperature, and the calculation result is relatively accurate, which can effectively provide theoretical guidance for the metallurgical production process and effectively save time and energy consumption.

[0069] In a possible implementation, the step of determining the cation radius, anion radius, and anion group radius in the slag to be measured according to the component data includes:

[0070] When the slag to be measured is an aluminate-based slag, the cation radius, anion radius, and anion group radius in the slag to be measured are calculated according to the component data through a preset cation-anion radius ratio. Among them, for aluminum in the aluminate slag system, the mathematical representation of the preset cation-anion group radius ratio is:

[0071]

[0072] Exemplarily, since the tetrahedron formed by Al-O is the main skeleton of the slag, the anion related to Al in the present invention needs to be set as AlO4 5- , and the calculation process of the cation-anion radius of Al adopts instead of

[0073] In a possible implementation, the step of solving the calculation model by the Newton iteration method includes:

[0074] Solve the calculation model by the Newton iteration method according to a preset iteration accuracy. The preset iteration accuracy is 10 -4 .

[0075] Exemplarily, the Newton iteration method is used for calculation, and the iteration accuracy is 10 -4 . When the number of iteration steps is higher than 100,000 steps, the model can be judged as non-convergent and the calculation is terminated. When the model converges and reaches the iteration accuracy, the calculation is terminated and the calculation result is output.

[0076] In a possible implementation, the step of solving the calculation model by the Newton iteration method further includes:

[0077] The calculation error ε of solving the calculation model by the Newton iteration method satisfies 0.8% ≤ |ε| ≤ 7.47%.

[0078] In a possible implementation, as Figure 2 shown, the application provides another calculation method for the surface tension of the slag, including: determining the slag composition and temperature according to the target slag system, inputting the slag composition and temperature (calculation parameters), determining the basic structural unit of the slag, the cation-anion or ion group radius, the surface tension and molar volume of pure substances, compiling a calculation program using MATLAB software, establishing a surface tension calculation model, setting the calculation initial value (0) and iteration accuracy (10 -4) When K = 1, judge the convergence of the equations. If the equations F(x) converge, output the calculation result. If the equations F(x) do not converge, judge the calculation accuracy through x1 = x0 - F(x0) / F’(x0). If the calculation accuracy satisfies |x1 - x0| ≤ 10 ﹣4 , then output X1 to obtain the surface tension value. If the calculation accuracy does not satisfy |x1 - x0| ≤ 10 ﹣4 , then perform iterative calculation (X0 = X1, K = K + 1).

[0079] In a possible implementation, as Figure 3 shown, the present application provides a calculation system for the surface tension of molten slag, and the system includes:

[0080] A data acquisition module 201, configured to obtain the component data and the molten slag temperature of the molten slag to be measured;

[0081] A first calculation module 202, configured to determine the component data of the molten slag to be measured based on the component data, and obtain the surface tension and molar volume of each component in the component data;

[0082] A second calculation module 203, configured to determine the cation radius, anion radius and anion group radius in the molten slag to be measured according to the component data;

[0083] A third calculation module 204, configured to establish a calculation model for the molten slag to be measured through the Blumt algorithm according to the molten slag temperature, the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius, and solve the calculation model by the Newton iteration method to obtain the surface tension of the molten slag to be measured.

[0084] In a possible implementation, as Figure 4 shown, an embodiment of the present application provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented: obtaining the component data and the molten slag temperature of the molten slag to be measured;

[0085] Determining the component data of the molten slag to be measured based on the component data, and obtaining the surface tension and molar volume of each component in the component data;

[0086] Determining the cation radius, anion radius and anion group radius in the molten slag to be measured according to the component data;

[0087] According to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius, and the anion group radius, a calculation model for the slag to be measured is established by the Bult algorithm, and the calculation model is solved by the Newton iteration method to obtain the surface tension of the slag to be measured.

[0088] In a possible implementation, as Figure 5 shown, an embodiment of the present application provides a computer-readable storage medium 400. The computer-readable storage medium stores a computer program 411. When the computer program is executed by a processor, the following steps are implemented: obtaining component data and slag temperature of the slag to be measured;

[0089] determining component data of the slag to be measured based on the component data, and obtaining the surface tension and molar volume of each component in the component data;

[0090] determining the cation radius, anion radius, and anion group radius in the slag to be measured according to the component data;

[0091] According to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius, and the anion group radius, a calculation model for the slag to be measured is established by the Bult algorithm, and the calculation model is solved by the Newton iteration method to obtain the surface tension of the slag to be measured.

[0092] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, to implement all or part of the processes in the above embodiment methods of the present application, it can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can at least include: any entity or device capable of carrying the computer program code to the photographing device / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk, or an optical disc, etc. In some jurisdictions, according to legislation and patent practice, the computer-readable medium cannot be an electrical carrier signal and a telecommunication signal.

[0093] In the above embodiments, the descriptions of the various embodiments each have their own focuses. For parts not detailed or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0094] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0095] In the embodiments provided in this application, it should be understood that the disclosed device / network device / terminal device and method can be implemented in other ways. For example, the device / network device / terminal device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical or other forms.

[0096] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0097] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included in the protection scope of this application.

Claims

1. A calculation method for the surface tension of molten slag, characterized in that, Including the following steps: Obtain the component data and slag temperature of the slag to be measured; Based on the component data, determine the component data of the slag to be measured, and obtain the surface tension and molar volume of each component in the component data; According to the component data, determine the cation radius, anion radius and anion group radius in the slag to be measured; According to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius, establish a calculation model for the slag to be measured through the Blute algorithm, and solve the calculation model through the Newton iteration method to obtain the surface tension of the slag to be measured.

2. The calculation method of the surface tension of molten slag according to claim 1, wherein, The step of determining the cation radius, anion radius and anion group radius in the slag to be measured according to the component data includes: When the slag to be measured is an aluminate-based slag, calculate the cation radius, anion radius and anion group radius in the slag to be measured according to the component data through a preset cation-anion radius ratio. Among them, for aluminum in the aluminate-based slag, the mathematical representation of the preset cation-anion group radius ratio is: R Al3+ / R AlO54- 。 3. The calculation method of the slag surface tension according to claim 1, wherein, The step of establishing a calculation model for the slag to be measured through the Blute algorithm according to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius includes: Characterize each component in the component data in a preset manner to obtain a target chemical formula; Based on the target chemical formula, substitute it into the preset Blute algorithm to obtain a target formula for each component; Substitute the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius into the target formula for each component to obtain a calculation model for the slag to be measured. Among them, the mathematical representation of the calculation model is: Among them, is the cation radius; is the anion radius; is the molar surface area of component i; N0 is Avogadro's constant; V i is the molar volume of pure molten substance i; is the mole fraction of component i in P, where P is the surface or volume.

4. The calculation method of the slag surface tension according to claim 1, characterized in that The step of solving the calculation model through the Newton iteration method includes: Solve the calculation model by Newton iteration method according to the preset iteration accuracy, and the preset iteration accuracy is 10 -4 .

5. The calculation method of the slag surface tension according to claim 1, wherein, The step of solving the calculation model through the Newton iteration method further includes: The calculation error ε of solving the calculation model through the Newton iteration method satisfies 0.8% ≤ |ε| ≤ 7.47%.

6. A calculation system for the surface tension of molten slag, characterized in that, The system includes: A data acquisition module for obtaining the component data and slag temperature of the slag to be measured; A first calculation module for determining the component data of the slag to be measured based on the component data, and obtaining the surface tension and molar volume of each component in the component data; A second calculation module for determining the cation radius, anion radius and anion group radius in the slag to be measured according to the component data; A third calculation module for establishing a calculation model for the slag to be measured through the Blute algorithm according to the slag temperature, the surface tension, the molar volume, the cation radius, the anion radius and the anion group radius, and solving the calculation model through the Newton iteration method to obtain the surface tension of the slag to be measured.

7. A terminal 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, the method described in any one of claims 1 to 5 is implemented.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the method according to any one of claims 1 to 5.

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