Calculation method, device, equipment and medium for joined blank formed by continuous casting of different steel grades

Abstract

The invention provides a calculation method, device and equipment for a joined blank formed by continuous casting of different steel grades and a medium. According to the joined blank calculation method, corresponding parameter values are input based on a joined blank display interface, the difference between a joined point component value corresponding to a joined blank and a forehearth component value serves as a corresponding first parameter, the difference between a rear hearth component value and the forehearth component value serves as a second parameter, and the component mixing degree is in direct proportion to the first parameter and the second parameter; therefore, the component mixing degree of the start point and the end point of the joined blank can be determined according to the forehearth component tolerance value and the afterhearth component tolerance value, then the corresponding tapping amount is determined based on the component mixing degree and the increasing relation between the tapping amount and the tundish residual steel amount of the corresponding position, and finally the start point and the end point of the joined blank are determined according to the corresponding tapping amount. And outputting and displaying a corresponding joined blank calculation result in the joined blank calculation interface. The joined blank calculation method is high in calculation precision, the calculation result is visible, and degradation judgment and modification treatment can be conveniently guided.

Description

Technical Field

[0001] The present application relates to the field of metallurgical technology, and in particular to a calculation method, device, equipment and medium for connecting billets formed by continuous casting of different steel grades. Background Art

[0002] Continuous casting is the process in which liquid molten steel gradually cools down to solid ingot as heat is transferred outwards. This process occurs continuously and continuously, so it is called continuous casting. The continuous casting process is usually as follows: first, the molten steel in the large ladle is poured into the middle ladle for storage and diversion, and then the molten steel enters the crystallizer from the middle ladle, and is cooled by the water-cooled copper wall of the crystallizer to gradually form a ingot with a fixed cross-sectional shape and a certain shell thickness. Then, the ingot with the center still being liquid molten steel is continuously pulled out from the lower mouth of the crystallizer, enters the secondary cooling zone, and is secondary cooled in the continuous casting fan-shaped section. Finally, the fan-shaped section is pulled out by the straightening machine and cut into ingots of different lengths by the fire cutting machine.

[0003] The number of continuous casting furnaces refers to the total number of furnaces produced from the start of casting to the stop of casting in a casting batch. It is an important economic and technical indicator to measure the level of continuous casting production. Usually, molten steel with the same composition is put into one casting batch for continuous production. However, due to the large number of slab steel grades and the small demand for a single steel grade, it is inconvenient to produce continuously in large quantities. However, short casting batches will lead to frequent starts and stops, low production efficiency, and a sharp increase in production costs. Therefore, in some cases, steel grades with different compositions will be arranged in one casting batch for continuous production to improve production efficiency and reduce production costs.

[0004] When different types of steel are continuously cast, the molten steel is mixed in the middle ladle. The ingot cast by the mixed molten steel is called the connecting billet. The composition of the connecting billet does not meet the composition requirements of the previous and next furnaces, and needs to be picked out for downgrading and re-judgment. At present, the length of the connecting billet is generally estimated based on the weight of the molten steel in the middle ladle when the connecting furnace ladle is opened. The casting length converted from the weight of the molten steel in the middle ladle is usually used as the length of the connecting billet. However, the accuracy of this method of dividing the connecting billet is not high enough to meet the production requirements of some steel types that have strict requirements on the composition range. Summary of the invention

[0005] In order to solve the existing technical problems, the present application provides a method, device, equipment and computer-readable storage medium for calculating a connection billet formed by connecting casts of different steel grades with high calculation accuracy.

[0006] According to a first aspect of an embodiment of the present application, a method for calculating a connecting billet formed by continuous casting of different steel grades is provided, comprising: based on input operation instructions in an input bar of a connecting billet calculation interface, respectively obtaining the amount of residual steel in the middle ladle when the back furnace ladle is cast in a continuous casting process of different steel grades, the cross-sectional width of the connecting billet, the cross-sectional thickness of the connecting billet, the drawing speed of the connecting billet, the front furnace composition value of the target composition, the back furnace composition value of the target composition, the front furnace composition tolerance value of the target composition, and the back furnace composition tolerance value of the target composition; Obtain a calculation execution instruction according to the connection blank calculation interface, and perform the following calculation operations according to the calculation execution instruction: The front furnace component tolerance value and the back furnace component tolerance value are respectively used as the connection point component values ​​corresponding to the starting point and the end point of the connection billet; according to the connection point component value, the front furnace component value and the back furnace component value, based on the relationship that the component mixing degree is proportional to the first parameter at the corresponding position and inversely proportional to the second parameter, the component mixing degrees corresponding to the starting point and the end point of the connection billet are determined as the front furnace reasonable component mixing degree and the back furnace reasonable component mixing degree, respectively; and the front furnace reasonable component mixing degree and the back furnace reasonable component mixing degree are respectively displayed at the corresponding positions in the output bar of the connection billet calculation interface; the first parameter is the difference between the connection point component value and the front furnace component value, and the second parameter is the difference between the back furnace component value and the front furnace component value; According to the residual steel amount in the middle package and the component mixing degrees corresponding to the starting point and the end point of the connecting billet, the steel tapping amount corresponding to the starting point and the end point of the connecting billet is obtained according to the relationship that the component mixing degree increases nonlinearly with the steel tapping amount at the corresponding position and increases linearly with the residual steel amount in the middle package; According to the steel output corresponding to the starting point and end point of the connecting billet, the connecting billet cross-sectional thickness, the connecting billet cross-sectional width and the connecting billet pulling speed, the casting lengths corresponding to the starting point and end point of the connecting billet are determined respectively as the ending casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace, and the casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace are output in the output column of the connecting billet calculation interface.

[0007] According to a second aspect of an embodiment of the present application, a device for calculating a connection billet formed by continuous casting of different steel grades is provided, comprising an input module, a calculation module and an output module: The input module is used to obtain the amount of remaining steel in the middle ladle when the back furnace ladle is poured in the continuous casting process of different steel grades, the cross-sectional width of the connecting billet, the cross-sectional thickness of the connecting billet, the drawing speed of the connecting billet, the front furnace component value of the target component, the back furnace component value of the target component, the front furnace component tolerance value of the target component, and the back furnace component tolerance value of the target component in the continuous casting process of different steel grades, based on the input operation instructions of the input column of the connection billet calculation interface; The calculation module is used to obtain a calculation execution instruction according to the connection billet calculation interface, and perform the following calculation operations according to the calculation execution instruction: taking the front furnace component tolerance value and the rear furnace component tolerance value as the connection point component values ​​corresponding to the starting point and end point of the connection billet respectively, and determining the component mixing degrees corresponding to the starting point and end point of the connection billet according to the connection point component value, the front furnace component value and the rear furnace component value, based on the relationship that the component mixing degree is proportional to the first parameter at the corresponding position and inversely proportional to the second parameter, so as to serve as the front furnace reasonable component mixing degree and the rear furnace reasonable component mixing degree respectively; the first parameter is the difference between the connection point component value and the front furnace component value, and the second parameter is the difference between the rear furnace component value and the front furnace component value; according to the middle bag residual steel amount and the component mixing degrees corresponding to the starting point and end point of the connection billet, according to the relationship that the component mixing degree increases nonlinearly with the steel tapping amount at the corresponding position and increases linearly with the middle bag residual steel amount, the steel tapping amount corresponding to the starting point and end point of the connection billet is obtained; The casting lengths corresponding to the starting and ending positions of the connecting billet are determined according to the steel output corresponding to the starting and ending points of the connecting billet, the cross-sectional thickness of the connecting billet, the cross-sectional width of the connecting billet and the pulling speed of the connecting billet, so as to serve as the ending casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace respectively.

[0008] The output module is used to display the reasonable component mixing degree of the front furnace and the reasonable component mixing degree of the rear furnace respectively at the corresponding positions in the output column of the connection billet calculation interface, and to output the ending casting length of the normal billet of the front furnace and the starting casting length of the normal billet of the rear furnace in the output column of the connection billet calculation interface.

[0009] According to a third aspect of an embodiment of the present application, there is provided a connection blank computing device, including a memory, a processor and a display; The memory stores a computer-readable program. When the processor executes the computer-readable program, the processor implements the connection blank calculation method as described above. The display is used to display the connection blank calculation interface.

[0010] According to a fourth aspect of an embodiment of the present application, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method for calculating the connection blank as described above is implemented.

[0011] As can be seen from the above, the connection billet calculation method provided in the embodiment of the present application is based on the corresponding parameter values ​​input into the connection billet display interface, and takes the difference between the corresponding connection point composition value at each position of the connection billet and the front furnace composition value as the corresponding first parameter, and takes the difference between the rear furnace composition value and the front furnace composition value as the second parameter, and defines the component mixing degree at each position of the connection billet as being proportional to the first parameter and proportional to the second parameter, so that the component mixing degree at the starting point and end point of the connection billet can be determined according to the front furnace composition tolerance value and the rear furnace composition tolerance value, and further defines the growth relationship between the component mixing degree and the steel output at the corresponding position and the residual steel amount in the middle package, so that according to the component mixing degree at the starting point and end point of the connection billet, based on the growth relationship, the steel output corresponding to the starting point and end point of the connection billet is determined, and finally the starting point and end point of the connection billet are determined according to the steel output corresponding to the starting point and end point of the connection billet, and the corresponding connection billet calculation result is output in the connection billet calculation interface for display. Therefore, the connection blank calculation method provided in the embodiment of the present application can accurately calculate the connection blank related parameters formed in the heterogeneous steel continuous casting process, and the calculation results are visualized, which is convenient for guiding the downgrading and rejudgment processing of the connection blank. The connection blank calculation device, equipment and computer-readable storage medium provided in the embodiment of the present application can respectively achieve the same beneficial effects as the connection blank determination method provided in the embodiment of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings: Figure 1 A schematic flow chart of a method for calculating a connection blank provided in accordance with some embodiments of the present application.

[0013] Figure 2 It is a schematic diagram of a first state of a connection blank calculation display interface in a connection blank calculation method provided according to an embodiment of the present application.

[0014] Figure 3 This is a schematic diagram of a second state of a connection blank calculation display interface in a connection blank calculation method provided according to an embodiment of the present application.

[0015] Figure 4 It is a schematic diagram of the third state of the connection blank calculation display interface in the connection blank calculation method provided in an embodiment of the present application.

[0016] Figure 5 This is a schematic diagram of the structure of a calculation device for a connecting billet formed by continuous casting of different steel grades provided in accordance with some embodiments of the present application.

[0017] Figure 6 A schematic diagram of the structure of a connection blank computing device provided according to some embodiments of the present application. DETAILED DESCRIPTION

[0018] The technical solution of the present application is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the implementation of this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0020] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] See also Figure 1 , which is a flow chart of a method for calculating a connection blank provided in some embodiments of the present application. In some embodiments, the method for calculating a connection blank provided in the embodiments of the present application includes S02, S04, S06, S08 and S010, and the description of each step is as follows.

[0023] S02: Based on the input operation instructions of the input bar of the connection billet calculation interface, the remaining steel amount in the middle ladle when the rear furnace ladle is poured in the continuous casting process of different steel grades, the cross-sectional width of the connection billet, the cross-sectional thickness of the connection billet, the drawing speed of the connection billet, the front furnace composition value of the target composition, the rear furnace composition value of the target composition, the front furnace composition tolerance value of the target composition and the rear furnace composition tolerance value of the target composition are obtained respectively.

[0024] When pouring different steel grades continuously, when the ladle of the rear furnace in two adjacent heats is poured (hereinafter referred to as the ladle of the rear furnace), there is still some molten steel from the front furnace in the middle ladle, and the remaining molten steel in the middle ladle at this time is called the remaining steel in the middle ladle, and the casting cut-off point of the remaining steel in the middle ladle is the heat division point of the front furnace and the rear furnace. In this application, the billet casted by the molten steel of the front furnace is called the front furnace billet, and the billet casted by the molten steel of the rear furnace is called the rear furnace billet or the rear furnace billet. The connection between the front furnace billet and the rear furnace billet is a billet cast by mixing the molten steel of the front furnace and the molten steel of the rear furnace, which is called a connecting billet.

[0025] The target composition is the composition contained in the front furnace molten steel and the back furnace molten steel. The front furnace composition value is the content value of the target composition in the front furnace molten steel, and the back furnace composition value is the content value of the target composition in the back furnace molten steel. The front furnace composition tolerance value refers to the composition limit value of the target composition content in the front furnace ingot, that is, the front furnace composition limit value, and the back furnace composition tolerance value refers to the composition limit value of the target composition content in the back furnace ingot, that is, the back furnace composition limit value. For example, the front furnace ingot meets the process requirements, which means that the Nb element content in the front furnace ingot needs to be greater than or equal to (can also be less than or equal to) a, then a is the front furnace composition tolerance value, and similarly, if, for example, the front furnace ingot meets the process requirements, which means that the Nb element content in the front furnace ingot needs to be greater than or equal to (can also be less than or equal to) b, then b is the back furnace composition tolerance value.

[0026] The point on the front furnace billet that meets the front furnace component tolerance value is the starting point of the connecting billet. The billets after the starting point of the connecting billet cannot meet the front furnace billet process requirements. The point on the connecting billet that meets the back furnace component tolerance value is the end point of the connecting billet. The billets before the end point of the connecting billet cannot meet the back furnace billet process requirements. The billet length between the starting point and the end point of the connecting billet is the connecting billet length. After determining the starting point and the end point of the connecting billet, the connecting billets that do not meet the front furnace billet and the back furnace billet component requirements can be accurately delineated and selected for downgrade and re-judgment.

[0027] See also Figure 2 As shown, it is a schematic diagram of the first state of the connection blank calculation display interface in the connection blank calculation method provided according to the embodiment of the present application. The first state of the connection blank calculation interface refers to the state in which the input information is not entered in the input bar of the connection blank calculation interface. The connection blank calculation interface includes an input bar, and its input bar includes but is not limited to the amount of remaining steel in the middle ladle when the back furnace ladle is poured, the cross-sectional thickness of the connection blank, the cross-sectional width of the connection blank, and the drawing speed of the connection blank. It is used to input the corresponding amount of remaining steel in the middle ladle, the cross-sectional thickness of the connection blank, the cross-sectional width of the connection blank, and the drawing speed of the connection blank in the input bar of the connection blank calculation interface, which is the corresponding input operation instruction, and according to each input operation instruction, the value information of the amount of remaining steel in the middle ladle, the cross-sectional thickness of the connection blank, the cross-sectional width of the connection blank, and the drawing speed of the connection blank are respectively obtained.

[0028] S04: Obtain calculation execution instructions according to the connection blank calculation interface.

[0029] Please continue reading Figure 2 As shown, there is also a start calculation key on the connection blank display interface, such as Figure 2 The "calculation" key in the input field is used to obtain a calculation execution instruction based on the touch operation of the "calculation" key, so as to perform corresponding calculations based on the background algorithm according to the data input in the input field. The corresponding calculation steps executed according to the calculation execution instruction include the calculation steps in S06, S08 and S010.

[0030] In addition, an exit key is provided on the connection blank calculation interface, and the connection blank calculation interface can be exited by touching the exit key.

[0031] S06: The front furnace composition tolerance value and the back furnace composition tolerance value are respectively used as the connection point composition values ​​corresponding to the starting point and end point of the connection billet; based on the connection point composition value, the front furnace composition value and the back furnace composition value, and on the basis that the composition mixing degree is proportional to the first parameter at the corresponding position and inversely proportional to the second parameter, the composition mixing degree corresponding to the starting point and end point of the connection billet is determined as the reasonable composition mixing degree of the front furnace and the reasonable composition mixing degree of the back furnace, respectively; and the reasonable composition mixing degree of the front furnace and the reasonable composition mixing degree of the back furnace are respectively displayed at the corresponding positions in the output bar of the connection billet calculation interface; the first parameter is the difference between the connection point composition value and the front furnace composition value, and the second parameter is the difference between the back furnace composition value and the front furnace composition value.

[0032] The composition mixing degree refers to the degree to which the composition of the connecting billet is transformed from the composition of the front furnace molten steel to the composition of the rear furnace molten steel. In the embodiment of the present application, the closer the connecting billet is to the front furnace casting billet, the smaller the corresponding composition mixing degree is, and the closer it is to the rear furnace casting billet, the larger the corresponding composition mixing degree is. This means that the closer the connecting billet is to the front furnace casting billet, the closer the composition of the connecting billet is to the front furnace molten steel composition, and the closer the connecting billet is to the rear furnace casting billet, the closer the composition of the connecting billet is to the rear furnace molten steel composition. It should be noted that the connecting point composition value here refers to the composition value (content value) of the target component at the corresponding position in the connecting billet.

[0033] Based on the definition in the embodiment of the present application that the component mixing degree at each position of the connecting billet is proportional to the first parameter and inversely proportional to the second parameter, the connecting point component value of the target component corresponding to the starting position of the connecting billet is the front furnace component tolerance value, and the connecting point component value of the target component corresponding to the end position of the connecting billet is the back furnace component tolerance value. Therefore, based on the above relationship between the component mixing degree at each position of the connecting billet and the connecting point component value, the front furnace component value and the back furnace component value, the component mixing degree corresponding to the starting point and end point of the connecting billet can be determined respectively according to the front furnace component tolerance value and the back furnace component tolerance value.

[0034] The reasonable composition mixing degree of the front furnace refers to the composition mixing degree at the connection point between the connecting billet and the front furnace casting billet that meets the process requirements. The reasonable composition mixing degree of the rear furnace refers to the composition mixing degree at the connection point between the connecting billet and the rear furnace casting billet that meets the process requirements.

[0035] Continue reading Figure 2 As shown, the output bar of the connection blank display interface also includes the reasonable component mixing degree of the front furnace and the reasonable component mixing degree of the rear furnace. Among them, the reasonable component mixing degree of the front furnace mainly refers to the component mixing degree of the core, and the reasonable component mixing degree of the rear furnace mainly refers to the component mixing degree of the corner. The output bar of the connection blank calculation interface includes the core component mixing degree output bar of the connection blank, the corner component mixing degree output bar of the connection blank, the reasonable component mixing degree output bar of the front furnace, and the reasonable component mixing degree output bar of the rear furnace.

[0036] S08: According to the remaining steel amount in the middle package and the component mixing degrees corresponding to the starting point and the end point of the connecting billet, the steel output corresponding to the starting point and the end point of the connecting billet is obtained according to the relationship that the component mixing degree increases nonlinearly with the steel output at the corresponding position and increases linearly with the remaining steel amount in the middle package.

[0037] Among them, the component mixing degree at each position of the connecting billet increases nonlinearly with the steel output at the corresponding position, and increases linearly with the remaining steel in the middle package. In the embodiment of the present application, the component mixing degree at each position of the connecting billet is defined as increasing nonlinearly with the steel output at the corresponding position, and increasing linearly with the remaining steel in the middle package. After determining the component mixing degree at each position of the connecting billet and the remaining steel in the middle package, the steel output corresponding to each position of the connecting billet can be calculated based on the above-mentioned growth relationship between the component mixing degree at each position of the connecting billet and the steel output at the corresponding position and the remaining steel in the middle package. Then, according to the component mixing degree corresponding to the starting and ending positions of the connecting billet, the steel output corresponding to the starting and ending positions of the connecting billet can be calculated. The steel output corresponding to each position of the connecting billet is also the amount of excess steel in the middle package corresponding to each position of the connecting billet.

[0038] S010: Determine the casting lengths corresponding to the starting and ending positions of the connecting billet according to the steel output, connecting billet cross-sectional thickness, connecting billet cross-sectional width and connecting billet pulling speed corresponding to the starting and ending points of the connecting billet, respectively, as the ending casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace, and output the ending casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace in the output column of the connecting billet calculation interface.

[0039] The amount of steel discharged at each position of the connecting billet refers to the amount of molten steel required to pull the length of the casting billet to the corresponding position of the connecting billet. Therefore, after determining the position of the connecting billet, the amount of steel discharged at each position of the connecting billet can be calculated based on the casting length corresponding to each position of the connecting billet, combined with the corresponding connecting billet cross-sectional thickness, connecting billet cross-sectional width and connecting billet pulling speed at each position. Similarly, after determining the amount of steel discharged at the starting and end positions of the connecting billet based on SO6, the casting length corresponding to the starting and end positions of the connecting billet can be determined based on the amount of steel discharged at each position, the connecting billet cross-sectional thickness, the connecting billet cross-sectional width and the connecting billet pulling speed, that is, the starting and end positions of the connecting billet are determined, and then the length of the connecting billet is determined according to the starting and end positions of the connecting billet.

[0040] Continue reading Figure 2 As shown, the output bar of the connection blank calculation interface also includes a connection blank starting position output bar, a connection blank ending position output bar, a front furnace normal blank ending casting length, and a back furnace normal blank actual casting length. The connection blank calculation method provided in the embodiment of the present application also includes: based on the input operation instruction of the input bar of the connection blank calculation display interface, obtaining the connection point casting length. The connection blank starting position and the connection blank ending position are respectively the distances of the starting point and the end point of the connection blank relative to the connection point.

[0041] The casting length of the normal billet at the end of the front furnace refers to the casting length corresponding to the end point when the billet in the front furnace meets the process requirements, that is, the casting length corresponding to the starting point of the connecting billet. The casting length of the normal billet at the beginning of the rear furnace refers to the casting length corresponding to the starting point when the billet in the rear furnace meets the process requirements, that is, the casting length corresponding to the end point of the connecting billet.

[0042] As can be seen from the above, the method for determining the connecting billet provided in the embodiment of the present application inputs the corresponding parameter values ​​on the connecting billet display interface, and takes the difference between the corresponding connecting point composition value at each position of the connecting billet and the front furnace composition value as the corresponding first parameter, and takes the difference between the rear furnace composition value and the front furnace composition value as the second parameter, and defines the component mixing degree at each position of the connecting billet as being proportional to the first parameter and proportional to the second parameter, so that the component mixing degree at the starting point and end point of the connecting billet can be determined according to the front furnace composition tolerance value and the rear furnace composition tolerance value, and further defines the growth relationship between the component mixing degree and the steel output at the corresponding position and the residual steel amount in the middle package, so that according to the component mixing degree at the starting point and end point of the connecting billet, based on the growth relationship, the steel output corresponding to the starting point and end point of the connecting billet is determined, and finally the starting point and end point of the connecting billet are determined according to the steel output corresponding to the starting point and end point of the connecting billet, and the corresponding connecting billet calculation result is output in the connecting billet calculation interface for display. Therefore, the method for determining the connecting billet provided in the embodiment of the present application can accurately calculate the relevant parameters of the connecting billet formed in the continuous casting process of different steels, and the calculation results are visualized, which is convenient for guiding the downgrading and re-judgment processing of the connecting billet.

[0043] In some embodiments, the above S06 specifically includes: using the front furnace composition tolerance value and the back furnace composition tolerance value as the starting point and end point of the connecting billet for the target composition, respectively, substituting the connecting point composition value, the front furnace composition value and the back furnace composition value into the first component mixing degree calculation formula for calculation, and obtaining the component mixing degrees corresponding to the starting point and end point of the connecting billet.

[0044] The calculation formula of the first component mixing degree is: M i =(C i -C 前 ) / (C 后 -C 前 ), M i and C i The connection blanks are at position P i The component mixing degree and the component value of the connection point for the target component, C 前 is the composition value of the previous furnace, C 后 It is the post-furnace composition value.

[0045] The connecting point composition value corresponding to the starting point of the connecting billet is the front furnace composition tolerance value Clim1, and the connecting composition value corresponding to the end point of the connecting billet is the back furnace composition tolerance value Clim2. 前 And the post-furnace composition value C 后 Substitute the first component mixing degree calculation formula to obtain the component mixing degree corresponding to the starting position and the end position of the connecting billet. For the sake of clear description, the starting position of the connecting billet is defined as P 起 The end position of the connecting billet is defined as P 终, the starting position P of the connecting billet 起 The degree of component mixing at is defined as M 起 , the end position P of the connecting billet 终 The degree of component mixing at is defined as M 终 Among them, P 起 and P 终 Belongs to position P i Two positions in . Then: M 起 = (Clim1 - C 前 ) / (C 后 -C 前 ); M 终 = (Clim2 - C 前 ) / (C 后 -C 前 ).

[0046] According to the first component mixing degree calculation formula defined in the method for determining the connecting billet provided in the embodiment of the present application, when the fore furnace component value C is known, 前 And the post furnace composition value C 后 In the case of , the front furnace component tolerance value Clim1 and the rear furnace component tolerance value Clim2 are substituted into the first component mixing degree calculation formula, and the component mixing degree M corresponding to the starting position of the connecting billet can be obtained respectively. 起 The component mixing degree M corresponding to the end position of the connecting billet 终 The mixing degree of the components at each position of the connecting billet is defined as the connecting point value C at each position of the connecting billet. i The connecting point composition value of each position of the connecting blank can be determined according to the component mixing degree at each position of the connecting point, so as to facilitate the downgrading and re-judgment of the connecting blank according to the connecting point composition value at each position of the connecting point.

[0047] In some embodiments, the method for calculating the connection blank further includes obtaining constant formula coefficients of the second component mixing degree calculation formula based on input operation instructions in the input column of the connection blank calculation interface. Figure 1 As shown, the constant formula coefficients of the second component mixing degree calculation formula are input into the input column of the connection blank calculation interface, which include m1, n1, m2 and n2.

[0048] Furthermore, the above S08 includes: determining the second component mixing degree calculation formula according to the coefficients of each constant formula and the remaining steel amount in the middle package, substituting the component mixing degrees corresponding to the starting point and end point of the connecting billet into the second component mixing degree calculation formula for calculation, and obtaining the steel output corresponding to the starting point and end point of the connecting billet.

[0049] Among them, the calculation formula of the second component mixing degree is: M i =(m1*R+n1)ln(Xi )+(m2*R+n2);X i is the steel output of the corresponding position of the connecting billet, R is the remaining steel amount in the middle package, m1, n1, m2 and n2 are the constant formula coefficients of the calculation formula for the second component mixing degree.

[0050] Furthermore, in some embodiments, it is defined as: A=m1*R+n1; B=m2*R+n2. Wherein, m1, n1, m2 and n2 are the component mixing degrees M corresponding to different positions of the connecting billet under multiple different residual steel amounts in the middle package. i and the corresponding steel output X i , according to the second component mixing degree calculation formula, the constant coefficient is obtained by fitting. i The corresponding component mixing degree M i The connection point component value C based on the corresponding position i , fore furnace composition value C 前 And the post furnace composition value C 后 Substitute the corresponding formula into the first component mixing degree calculation formula to obtain the multiple different positions P of the connecting blank. i The corresponding steel output is based on the casting length L at the corresponding position i , the size of the connecting billet and the drawing speed. The size of the connecting billet includes the width and length of the section.

[0051] In some embodiments, before performing the above S04, the method for determining the connection blank provided in the embodiment of the present application further includes determining the above second component mixing degree calculation formula, that is, determining constants m1, n1, m2 and n2. Specifically, the specific steps of determining the second component mixing degree calculation formula include the following steps.

[0052] Firstly, after the ladle in the rear furnace starts pouring, the casting length is tracked to obtain the casting lengths corresponding to multiple different positions of the connecting billet.

[0053] Then, based on the component detection results of each position among the multiple different positions, the connection point component value corresponding to each position among the multiple different positions is obtained, and the connection point component value, the front furnace component value and the rear furnace component value corresponding to each position are correspondingly substituted into the first component mixing degree calculation formula to obtain the component mixing degrees corresponding to the multiple different positions of the connection billet, and according to the casting lengths, casting billet sizes and casting pulling speeds corresponding to the multiple different positions, the steel output corresponding to the multiple different positions is obtained; Next, the component mixing degrees and steel output corresponding to multiple different positions of the connecting billet under the same middle ladle residual steel amount are fitted according to the second component mixing degree calculation formula to determine A and B under the same middle ladle residual steel amount.

[0054] Finally, according to A and B determined under different residual steel amounts in the ladle, calculations are performed according to the relationship: A=m1*R+n1; B=m2*R+n2 to determine m1, n1, m2 and n2 respectively.

[0055] The calculation method for the connecting billet provided in the embodiment of the present application is to perform full-process connecting billet sampling and component detection analysis and M i The fitting process includes: tracking the positions P of the connecting billets under a certain amount of residual steel in the middle package i Casting length L i , and for each position P i The component value of the target component at each position is detected and analyzed to obtain the value of P i The connection point component value C i ; Then, according to each position P i The connection point component value C i , fore furnace composition value C 前 , post furnace composition value C 后 , the front furnace component tolerance value Clim1 and the rear furnace component tolerance value Clim2, according to the first component mixing degree calculation formula, the component mixing degree M of the connecting billet at different positions Pi is calculated respectively. i , and according to the different positions of the connection blanks P i Corresponding casting length L i , respectively calculate the different positions P of the connection blank i Corresponding steel output X i ; Then according to the different positions of the connection blanks P i The corresponding component mixing degree M i and steel output X i , the composition mixing degree M of the connecting blank i Value, calculated according to the second component mixing degree formula: M i =A*ln(X i ) + B for fitting, we can get A and B under the middle bag residual steel content. The above full process connection billet sampling composition detection analysis and M i The fitting process can obtain two different A1, A2 and B1, B2, and A1, A2 and B1, B2 satisfy A1=m1*R1+n1, A2=m1*R2+n1, B1= m2*R1+n2, B2= m2*R2+n2. According to the two different A1, A2, B1, B2, R1, R2, the constants m1, n1, m2 and n2 can be calculated, and then the second component mixing degree calculation formula M can be obtained. i =A*ln(X i )+B.

[0056] In some embodiments, the connection blank calculation method provided in the embodiments of the present application further includes executing at least one of the first calculation operation, the second calculation operation and the third calculation operation according to the calculation execution instruction.

[0057] The first calculation operation is: according to the casting length corresponding to the starting point and the end point of the connecting billet, the cross-sectional thickness of the connecting billet, and the cross-sectional width of the connecting billet, the weight of the connecting billet is calculated, and the weight of the connecting billet is displayed in the corresponding position of the output column in the connecting billet calculation interface.

[0058] The second calculation operation is: according to the casting lengths corresponding to the starting and ending points of the connecting billet and the casting length of the connecting point, determine the starting position of the connecting billet relative to the connecting point and the ending position of the connecting billet relative to the connecting point, and according to the starting position and the ending position of the connecting billet, determine the length of the connecting billet, and display the starting position, the ending position and the length of the connecting billet in the corresponding positions of the output bar in the connecting billet calculation interface.

[0059] The third calculation operation is: according to the casting lengths corresponding to the corners and chips of the connecting billet, respectively determine the steel output of the corners and core of the connecting billet, and substitute the steel output of the corners and core of the connecting billet into the second component mixing degree calculation formula to obtain the core component mixing degree and corner component mixing degree of the connecting billet, and display the chip component mixing degree and corner component mixing degree at the corresponding positions of the output bar in the connecting billet calculation display interface.

[0060] Please continue reading Figure 2 As shown, the output bar of the connection blank calculation interface further includes a connection blank weight output bar, a connection blank starting position output bar, a connection blank ending position output bar and a connection blank length output bar, a chip component mixing degree output bar, a corner component mixing degree output bar, a front furnace reasonable component mixing degree output bar and a rear furnace reasonable component output bar.

[0061] Furthermore, the method for calculating the connection blank provided in the embodiment of the present application further includes obtaining the constant formula coefficient of the impact depth calculation formula of the connection blank core based on the input operation instruction of the input bar of the connection blank calculation interface, such as Figure 2 c and d shown in the figure are used to determine the impact depth calculation formula. Then, the cross-sectional thickness, cross-sectional width and pulling speed of the connecting billet are substituted into the impact depth calculation formula to calculate the impact depth of the core of the connecting billet, and the impact depth is displayed at the corresponding position of the output column of the connecting billet calculation interface. In this embodiment, the input column of the connecting billet calculation interface also includes an input column for constant formula coefficients of the impact depth calculation formula, and the output column of the connecting billet calculation interface also includes an output column for impact depth.

[0062] The impact depth calculation formula is: L 冲=c*F+d. Among them, L 冲 is the impact depth, c and d are the constant formula coefficients in the impact depth calculation formula, and F is the product of the connecting billet cross-sectional width, the connecting billet cross-sectional thickness and the connecting billet drawing speed, that is, F=connecting billet cross-sectional width*connecting billet cross-sectional thickness*connecting billet drawing speed.

[0063] In some embodiments, the method for calculating the connection blank provided by the present application further includes selecting a target component type based on a target component type selection column in the connection blank calculation interface, and selecting a target component based on a target component selection column in the connection blank calculation interface. Figure 2 As shown, the target component type can be a single element or a mixed element. The target component is such as Mn or Nb.

[0064] In some embodiments, the connection blank calculation method provided in the present application also includes executing a fourth operation calculation and a fifth operation calculation according to a calculation execution instruction.

[0065] The fourth operation calculation is: displaying the various action points of the connecting billet in the result display column of the connecting billet calculation interface, and displaying the casting length corresponding to the position of each action point, and determining the steel output of each action point based on the casting length of each action point, substituting the steel output at the position of each action point into the second component mixing degree calculation formula, obtaining the corner component mixing degree and core component mixing degree at the position of each action point of the connecting billet, and displaying the angle component mixing degree and core component mixing degree at the corresponding positions in the result display column.

[0066] The fifth operation calculation is: substitute the corner component mixing degree, the front furnace component value and the rear furnace component value at the corresponding action point of the connecting billet into the first component mixing degree calculation formula, obtain the corner component prediction value at the corresponding action point of the connecting billet, and display the corner component prediction value at the corresponding position in the result display column.

[0067] Please continue reading Figure 2 As shown, the connection billet calculation interface also includes a result display column, wherein the result display column includes displaying the various action points of the connection billet, and the corresponding casting length, corner component mixing degree, core component mixing degree and corner component prediction value at each action point.

[0068] Figure 3 This is a schematic diagram of the second state of the connection blank calculation interface in the connection blank calculation method provided according to the embodiment of the present application. The second state of the connection blank calculation state refers to the state in which the corresponding data is entered in each input column. After entering the corresponding data in each input column, click the "Calculate" button to start the corresponding calculation of each parameter of the connection blank, obtain the corresponding calculation results, and output and display the corresponding calculation results in the corresponding output column and result display column. For details, please refer to Figure 4 shown. Figure 4It is a schematic diagram of the connection blank calculation interface in the third state, wherein the connection blank calculation interface in the third state performs corresponding calculations based on the information input in the input column, and outputs the corresponding calculation results in the corresponding output column and result display column.

[0069] See also Figure 5 As shown, it is a structural schematic diagram of a connection billet calculation device formed by continuous casting of different steel grades provided in accordance with some embodiments of the present application. In some embodiments, the connection billet determination device provided in the present application includes an input module 101, a calculation module 102 and an output module 103. The input module 101 is used to obtain the amount of residual steel in the middle ladle when the back furnace ladle is poured in the different steel grades continuous casting process, the connection billet cross-sectional width, the connection billet cross-sectional thickness, the connection billet drawing speed, the front furnace composition value of the target composition, the back furnace composition value of the target composition, the front furnace composition tolerance value of the target composition, and the back furnace composition tolerance value of the target composition based on the input operation instructions of the input bar of the connection billet calculation interface. The calculation module 102 is used to obtain the calculation execution instruction according to the connection billet calculation interface, and perform the following calculation operations according to the calculation execution instruction: the front furnace component tolerance value and the rear furnace component tolerance value are used as the connection point component values ​​corresponding to the starting point and the end point of the connection billet respectively, and according to the connection point component value, the front furnace component value and the rear furnace component value, based on the relationship that the component mixing degree is proportional to the first parameter at the corresponding position and inversely proportional to the second parameter, the component mixing degree corresponding to the starting point and the end point of the connection billet is determined to serve as the reasonable component mixing degree of the front furnace and the reasonable component mixing degree of the rear furnace respectively; the first parameter is the difference between the connection point component value and the front furnace component value, and the second parameter is the difference between the rear furnace component value and the front furnace component value; according to the residual steel amount in the middle package and the component mixing degree corresponding to the starting point and the end point of the connection billet, according to the relationship that the component mixing degree increases nonlinearly with the steel tapping amount at the corresponding position and increases linearly with the residual steel amount in the middle package, the steel tapping amount corresponding to the starting point and the end point of the connection billet is obtained; According to the steel output corresponding to the starting point and end point of the connecting billet, the connecting billet cross-sectional thickness, the connecting billet cross-sectional width and the connecting billet pulling speed, the casting lengths corresponding to the starting point and end point of the connecting billet are determined, so as to serve as the ending casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace, respectively. The output module 103 is used to display the reasonable component mixing degree of the front furnace and the reasonable component mixing degree of the rear furnace at the corresponding positions in the output column of the connecting billet calculation interface, and to output the ending casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace in the output column of the connecting billet calculation interface. The connecting billet determination device provided in the embodiment of the present application and the connecting billet determination method provided in the embodiment of the present application can achieve basically the same technical effect, which will not be described in detail here.

[0070] See also Figure 6As shown, it is a schematic diagram of the structure of the connection blank calculation device provided according to some embodiments of the present application. In some embodiments, the connection blank determination device provided by the present application includes a memory 201, a processor 202 and a display 203. The memory 201 stores a computer program that can be executed by the processor. When the computer program is executed by the processor 202, the connection blank calculation method provided by any embodiment of the present application is implemented. The display 203 is used to display the connection blank calculation interface. The connection blank calculation device provided by the embodiment of the present application and the connection blank calculation method provided by the embodiment of the present application can achieve the same technical effect. In order to avoid repetition, they will not be repeated here.

[0071] The connection blank calculation device provided in the embodiment of the present application can be used for connection blank calculation, and its computer software is based on the windows system and developed in C++ language. The connection blank calculation device includes a calculation software and a human-computer interaction interface, that is, a connection blank calculation interface. The connection blank calculation interface includes an input bar and an output bar, wherein the input bar includes a connection blank section thickness input bar, a connection blank section width input bar, a connection blank drawing speed input bar, a middle ladle remaining steel input bar when the back furnace ladle is poured, a connection point pouring length input bar, a front furnace element composition value input bar, a back furnace element composition value input bar, a front furnace tolerance composition value input bar, a back furnace tolerance composition value input bar, a second component mixing degree calculation formula constant formula coefficient input bar, and an impact depth constant formula coefficient input bar. The output columns include the output column of reasonable mixing degree coefficient (core) of the front furnace, the output column of reasonable mixing degree coefficient (corner) of the rear furnace, the output column of the weight of the connecting billet, the output column of the length of the connecting billet, the output column of the starting position of the connecting billet, the output column of the ending position of the connecting billet, the output column of the impact depth of the core, the output column of the pouring length of the normal ending billet of the front furnace, and the output column of the pouring length of the normal starting billet of the rear furnace.

[0072] In addition, the calculation interface for the connection blank is also provided with a calculation key. Based on the touch operation of the calculation key, the calculation software is started to calculate the various parameters of the connection blank according to the input data in the input column, and display them accordingly in the output column.

[0073] For example, a slab casting machine produces slabs with a cross-section of 260mm×1870mm. The Mn content in the front furnace steel is 0.72%, and the Mn content in the rear furnace steel is 0.95%. The front furnace tolerates Mn element composition of 0.80%, the rear furnace tolerates Mn element composition of 0.85%, the connecting billet pulling speed is 0.85m / min, and different steel grades are continuously cast in two furnaces. When the remaining steel amount in the middle ladle is R=24t, the large ladle of the rear furnace starts to be cast. At this time, the casting length is 105m. Enter the above production parameters in the input column of the connecting billet calculation interface accordingly, and click the calculation button to obtain: the reasonable mixing degree coefficient of the front furnace (core) is 0.348, the reasonable mixing degree coefficient of the rear furnace (corner) is 0.565, the connecting billet weight is 20.79t, the connecting billet length is 5.482m, the starting position of mixed steel is -0.312m, the ending position of mixed steel is 5.17m, the core impact depth is 1.971m, the normal ending billet casting length of the front furnace is 106.37m, and the normal billet starting casting length of the rear furnace is 110.17m.

[0074] It can be seen from the above that the connecting billet calculation device provided in the embodiment of the present application can quickly and accurately calculate the starting point and ending point of the connecting billet during the continuous casting of different steel grades, and effectively guide the division and precise processing of the connecting billets during the continuous casting of different steel grades during the production process.

[0075] The embodiment also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, each process of the above-mentioned connection blank calculation method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. Among them, the computer-readable storage medium is a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc.

[0076] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for calculating the connection billet formed by continuous casting of different steel grades, characterized in that: include: Based on the input operation instructions of the input bar of the connection billet calculation interface, the amount of residual steel in the middle ladle when the back furnace ladle is poured in the continuous casting process of different steel grades, the cross-sectional width of the connection billet, the cross-sectional thickness of the connection billet, the drawing speed of the connection billet, the front furnace composition value of the target composition, the back furnace composition value of the target composition, the front furnace composition tolerance value of the target composition, and the back furnace composition tolerance value of the target composition are obtained respectively; Obtain a calculation execution instruction according to the connection blank calculation interface, and perform the following calculation operations according to the calculation execution instruction: The front furnace component tolerance value and the back furnace component tolerance value are respectively used as the connection point component values ​​corresponding to the starting point and the end point of the connection billet; according to the connection point component value, the front furnace component value and the back furnace component value, based on the relationship that the component mixing degree is proportional to the first parameter at the corresponding position and inversely proportional to the second parameter, the component mixing degrees corresponding to the starting point and the end point of the connection billet are determined as the front furnace reasonable component mixing degree and the back furnace reasonable component mixing degree, respectively; and the front furnace reasonable component mixing degree and the back furnace reasonable component mixing degree are respectively displayed at the corresponding positions in the output bar of the connection billet calculation interface; the first parameter is the difference between the connection point component value and the front furnace component value, and the second parameter is the difference between the back furnace component value and the front furnace component value; According to the residual steel amount in the middle package and the component mixing degrees corresponding to the starting point and the end point of the connecting billet, the steel tapping amount corresponding to the starting point and the end point of the connecting billet is obtained according to the relationship that the component mixing degree increases nonlinearly with the steel tapping amount at the corresponding position and increases linearly with the residual steel amount in the middle package; According to the steel output corresponding to the starting point and end point of the connecting billet, the connecting billet cross-sectional thickness, the connecting billet cross-sectional width and the connecting billet pulling speed, the casting lengths corresponding to the starting point and end point of the connecting billet are determined respectively as the ending casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace, and the casting length of the normal billet in the front furnace and the starting casting length of the normal billet in the rear furnace are output in the output column of the connecting billet calculation interface.

2. The method for calculating the connection blank according to claim 1, characterized in that: The method of using the front furnace component tolerance value and the back furnace component tolerance value as the connection point component values ​​corresponding to the starting point and the end point of the connection billet respectively, and determining the component mixing degree corresponding to the starting point and the end point of the connection billet according to the connection point component value, the front furnace component value and the back furnace component value, based on the relationship that the component mixing degree is proportional to the first parameter at the corresponding position and inversely proportional to the second parameter, comprises: Taking the front furnace component tolerance value and the back furnace component tolerance value as the starting point and the end point of the connecting billet for the connecting point component value of the target component, the connecting point component value, the front furnace component value and the back furnace component value are substituted into the first component mixing degree calculation formula for calculation, and the component mixing degrees corresponding to the starting point and the end point of the connecting billet are obtained; The calculation formula of the mixing degree of the first component is: i =(C i -C 前 ) / (C 后 -C 前 ), the M i and the C i The connection blank is at position P respectively i The component mixing degree and the connecting point component value for the target component, the C 前 is the fore furnace composition value, the C 后 is the post-furnace composition value.

3. The method for calculating the connection blank according to claim 2, characterized in that: It also includes input operation instructions based on the input bar of the connection billet calculation interface, respectively obtaining constant formula coefficients of the second component mixing degree calculation formula; according to the residual steel amount in the middle package and the component mixing degrees corresponding to the starting point and the end point of the connection billet, according to the relationship that the component mixing degrees increase nonlinearly with the steel tapping amount at the corresponding position and increase linearly with the residual steel amount in the middle package, obtaining the steel tapping amount corresponding to the starting point and the end point of the connection billet, including: determining the second component mixing degree calculation formula according to each of the constant formula coefficients and the residual steel amount in the middle package, substituting the component mixing degrees corresponding to the starting point and the end point of the connection billet into the second component mixing degree calculation formula for calculation, and obtaining the steel tapping amount corresponding to the starting point and the end point of the connection billet; the second component mixing degree calculation formula is: i =(m1*R+n1)ln(X i )+(m2*R+n2); The X i is the steel output at the corresponding position of the connecting billet, R is the remaining steel amount in the middle package, and m1, n1, m2 and n2 are respectively constant formula coefficients of the second component mixing degree calculation formula.

4. The method for calculating the connection blank according to claim 1, characterized in that: Also comprising executing at least one of a first computing operation, a second computing operation, and a third computing operation according to the computing execution instruction; The first calculation operation is: according to the casting lengths corresponding to the starting point and the end point of the connecting blank, the cross-sectional thickness of the connecting blank, and the cross-sectional width of the connecting blank, the weight of the connecting blank is calculated, and the weight of the connecting blank is displayed at the corresponding position of the output column in the connecting blank calculation interface; The second calculation operation is: according to the casting lengths corresponding to the starting and ending points of the connecting billets and the casting length of the connecting point, determining the connecting billet starting position of the starting point of the connecting billet relative to the connecting point and the connecting billet ending position of the ending point of the connecting billet relative to the connecting point, and determining the connecting billet length according to the connecting starting position and the connecting billet ending position, and displaying the connecting billet starting position, the connecting billet ending position and the connecting billet length at corresponding positions of the output bar in the connecting billet calculation interface; The third calculation operation is: according to the casting lengths corresponding to the corners and cores of the connecting billet, respectively determine the steel output of the corners and cores of the connecting billet, and substitute the steel output of the corners and cores of the connecting billet into the second component mixing degree calculation formula to obtain the core component mixing degree and corner component mixing degree of the connecting billet, and display the chip component mixing degree and corner component mixing degree at the corresponding positions of the output bar in the connecting billet calculation display interface.

5. According to the method for calculating the connection blank according to claim 1, it further comprises obtaining a constant formula coefficient of the impact depth calculation formula of the connection blank core based on an input operation instruction of an input bar of the connection blank calculation interface to determine the impact depth calculation formula; Substituting the cross-sectional thickness of the connecting blank, the cross-sectional width of the connecting blank and the drawing speed of the connecting blank into the impact depth calculation formula to calculate, obtain the impact depth of the core of the connecting blank, and display the impact depth at the corresponding position of the output column of the connecting blank calculation interface; The impact depth calculation formula is: 冲 =c*F+d; where The L 冲 is the impact depth, c and d are constant formula coefficients in the impact depth calculation formula, and F is the product of the cross-sectional width of the connecting billet, the cross-sectional thickness of the connecting billet and the drawing speed of the connecting billet.

6. The method for calculating the connection blank according to any one of claims 1 to 5, characterized in that: The method also includes selecting the target component type based on the target component type selection column in the connection blank calculation interface, and selecting the target component based on the target component selection column in the connection blank calculation interface.

7. According to the method for calculating the connection blank according to claim 3, it also includes performing the following operations according to the calculation execution instruction: The various action points of the connecting billet and the casting length corresponding to the position of each action point are displayed in the result display column of the connecting billet calculation interface, and the steel output of each action point is determined based on the casting length of each action point, and the steel output at each action point is substituted into the second component mixing degree calculation formula to obtain the corner component mixing degree and the core component mixing degree at each action point of the connecting billet, and the angle component mixing degree and the core component mixing degree are displayed at the corresponding positions in the result display column; and, the corner component mixing degree, the front furnace component value and the rear furnace component value at the corresponding action point of the connecting billet are substituted into the first component mixing degree calculation formula to obtain the corner component prediction value at the corresponding action point of the connecting billet, and the corner component prediction value is displayed at the corresponding position in the result display column.

8. A device for calculating the connection billets formed by continuous casting of different steel grades, characterized in that: Including input module, calculation module and output module: The input module is used to obtain the amount of remaining steel in the middle ladle when the back furnace ladle is poured in the continuous casting process of different steel grades, the cross-sectional width of the connecting billet, the cross-sectional thickness of the connecting billet, the drawing speed of the connecting billet, the front furnace component value of the target component, the back furnace component value of the target component, the front furnace component tolerance value of the target component, and the back furnace component tolerance value of the target component in the continuous casting process of different steel grades, based on the input operation instructions of the input column of the connection billet calculation interface; The calculation module is used to obtain a calculation execution instruction according to the connection billet calculation interface, and perform the following calculation operations according to the calculation execution instruction: taking the front furnace component tolerance value and the rear furnace component tolerance value as the connection point component values ​​corresponding to the starting point and end point of the connection billet respectively, and determining the component mixing degrees corresponding to the starting point and end point of the connection billet according to the connection point component value, the front furnace component value and the rear furnace component value, based on the relationship that the component mixing degree is proportional to the first parameter at the corresponding position and inversely proportional to the second parameter, so as to serve as the front furnace reasonable component mixing degree and the rear furnace reasonable component mixing degree respectively; the first parameter is the difference between the connection point component value and the front furnace component value, and the second parameter is the difference between the rear furnace component value and the front furnace component value; according to the middle bag residual steel amount and the component mixing degrees corresponding to the starting point and end point of the connection billet, according to the relationship that the component mixing degree increases nonlinearly with the steel tapping amount at the corresponding position and increases linearly with the middle bag residual steel amount, the steel tapping amount corresponding to the starting point and end point of the connection billet is obtained; According to the steel output corresponding to the starting point and the end point of the connecting billet, the cross-sectional thickness of the connecting billet, the cross-sectional width of the connecting billet and the drawing speed of the connecting billet, the casting length corresponding to the starting point and the end point of the connecting billet is determined to serve as the casting length of the normal billet ending in the front furnace and the casting length of the normal billet starting in the rear furnace respectively; The output module is used to display the reasonable component mixing degree of the front furnace and the reasonable component mixing degree of the rear furnace respectively at the corresponding positions in the output column of the connection billet calculation interface, and to output the ending casting length of the normal billet of the front furnace and the starting casting length of the normal billet of the rear furnace in the output column of the connection billet calculation interface.

9. A connection blank calculation device, characterized in that: including memory, processor and display; A computer-readable program is stored in the memory. When the processor executes the computer-readable program, it implements the connection blank calculation method as described in any one of claims 1 to 7. The display is used to display the connection blank calculation interface.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for calculating the connection blank according to any one of claims 1 to 7 is implemented.

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