A strip annealing furnace shape control method, device and storage medium

Abstract

The present invention relates to a strip annealing furnace shape control method, device and storage medium. The method includes the steps of: obtaining first strip parameters; adjusting the heating load of each section of the annealing furnace according to the first strip parameters; obtaining second strip parameters; adjusting the strip cooling rate according to the second strip parameters; obtaining third strip parameters; and adjusting the roll spacing of different furnace sections according to the third strip parameters. A strip annealing furnace shape control method, device and storage medium provided by the present application can solve the difficult problems of shape control and poor shape control in the existing silicon steel annealing process technology.

Description

Technical Field

[0001] The present invention relates to the technical field of strip shape control, and particularly to a strip shape control method, device and storage medium for a strip annealing furnace. Background Art

[0002] Cold-rolled silicon steel is widely used in the manufacturing fields of motors and electronic transformers due to its excellent magnetic properties and precise dimensional accuracy. Strip shape is one of the important quality indicators of silicon steel products. During use, cold-rolled silicon steel strips need to be punched on high-speed punching machines, and then laminated, welded or riveted. If there are waves in the strip, it will seriously affect the normal use of motors or transformers. Therefore, it is very important to eliminate the waves in the silicon steel strips. Due to the requirements of silicon steel products for magnetism, the waves in the strip cannot be improved through processes such as tension leveling and skin pass rolling. Therefore, it is very difficult to control and improve the waves in silicon steel products.

[0003] As a key process in silicon steel production, the silicon steel annealing furnace has a certain impact on the edge waves, rib waves and middle waves of the strip due to its complex structure, diverse process conditions and fluctuating service life of the equipment. Moreover, in the actual production process, since the annealing furnace is a closed system, the furnace conditions cannot be completely monitored. That is, the inside of the furnace is completely in a "black box" state, and heat, force, gas, etc. are an extremely complex system, which is a great problem for strip shape improvement. Therefore, there has been no breakthrough in strip shape control at present, the improvement direction is not clear, which has a greater impact on the production efficiency and output of the annealing unit, and becomes a variable factor that is not easy to control.

[0004] Therefore, the current situation that the strip shape sharpness of 80% of the silicon steel strips after annealing is greater than 1.2% will not only have a great impact on the production stability of the production line, but also cause frequent quality objections from downstream users, so improvement is needed. Summary of the Invention

[0005] In view of this, the present invention provides a strip shape control method, device and storage medium for a strip annealing furnace.

[0006] Specifically, the present invention is implemented through the following technical solutions:

[0007] According to a first aspect of the present invention, there is provided a strip shape control method for a strip annealing furnace, the method comprising the steps of:

[0008] Obtain first strip parameters;

[0009] Adjust the heating load of each section of the annealing furnace according to the first strip parameters;

[0010] Obtain second strip parameters;

[0011] Adjust the strip cooling rate according to the second strip parameters;

[0012] Obtain the third strip steel parameter;

[0013] Adjust the furnace roll spacing of different furnace sections according to the third strip steel parameter.

[0014] Optionally, the obtaining of the first strip steel parameter includes the steps of:

[0015] Obtain the silicon content of the strip steel;

[0016] Obtain the strip width of the strip steel;

[0017] Obtain the strip thickness of the strip steel;

[0018] Obtain the speed of the strip steel.

[0019] Optionally, the adjusting of the heating load of each section of the annealing furnace according to the first strip steel parameter includes the steps of:

[0020] Judge whether each parameter in the first strip steel parameter is correspondingly less than the first threshold value;

[0021] If so, set the power load of each section of the gas burner heating section to the first first parameter range, and set the power load of each section of the resistance strip heating section to the first second parameter range;

[0022] If not, set the power load of each section of the gas burner heating section to the first third parameter range, and set the power load of each section of the resistance strip heating section to the first fourth parameter range.

[0023] Optionally, the obtaining of the second strip steel parameter includes the steps of:

[0024] Obtain the strip width of the strip steel after passing through the resistance strip heating section;

[0025] Obtain the strip thickness of the strip steel after passing through the resistance strip heating section.

[0026] Optionally, the adjusting of the strip steel cooling rate according to the second strip steel parameter includes the steps of:

[0027] Judge whether the strip width in the second strip steel parameter is greater than or equal to the second parameter or the strip thickness is less than or equal to the third parameter;

[0028] If so, set the fan valve opening value to the second fourth parameter range, set the opening of the suction air damper of the cooling radiation tube to the second fifth parameter range, and set the strip steel cooling rate to the second sixth parameter range.

[0029] Optionally, the obtaining of the third strip steel parameter includes the steps of:

[0030] Obtain the steel grade composition of the strip steel;

[0031] Obtain the elastic modulus of the strip steel;

[0032] Obtain the moment of inertia of the strip steel;

[0033] Obtain the load of the strip steel;

[0034] Obtain the different expansion amounts of the strip steel at different temperatures;

[0035] Calculate the deflection of the strip steel plate;

[0036] Calculate the roll spacing of the furnace rolls in the preset furnace section.

[0037] Optionally, the adjusting the roll spacing of different furnace sections according to the third strip steel parameter includes the steps of:

[0038] Adjust the spacing of the last three furnace rolls in the furnace section of the gas burner heating section;

[0039] Adjust the furnace section spacing of the resistance band heating section;

[0040] Adjust the spacing of the first three furnace rolls in the slow cooling section.

[0041] According to a second aspect of the present invention, there is provided a strip steel annealing furnace shape control device, the device comprising:

[0042] A first strip steel parameter acquisition module for acquiring first strip steel parameters;

[0043] A first adjustment module for adjusting the heating load of each section of the annealing furnace according to the first strip steel parameter;

[0044] A second strip steel parameter acquisition module for acquiring second strip steel parameters;

[0045] A second adjustment module for adjusting the strip steel cooling rate according to the second strip steel parameter;

[0046] A third strip steel parameter acquisition module for acquiring third strip steel parameters;

[0047] A third adjustment module for adjusting the roll spacing of different furnace sections according to the third strip steel parameter.

[0048] According to a third aspect of the present invention, there is provided an electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the program, the steps of the method described in any one of the foregoing are implemented.

[0049] According to a fourth aspect of the present invention, there is provided a storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of the method described in any one of the foregoing are implemented.

[0050] The technical solution provided by the present invention at least brings the following beneficial effects:

[0051] A strip annealing furnace shape control method, device and storage medium provided by the present application can solve the difficult problems of shape control and poor shape control in the existing silicon steel annealing process technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present invention and, together with the specification, are used to explain the principles of the present invention.

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0054] Figure 1 It is a schematic flow chart of a strip annealing furnace shape control method provided by an embodiment of the present invention;

[0055] Figure 2 It is a schematic structural diagram of a strip annealing furnace shape control device provided by an embodiment of the present invention;

[0056] Figure 3 It is a schematic structural diagram of an electronic device provided by an embodiment of the present invention;

[0057] Figure 4 It is a schematic structural diagram of a storage medium provided by an embodiment of the present invention;

[0058] Figure 5 It is a schematic diagram of the furnace temperature change curve along the furnace length direction before and after the temperature adjustment process of a strip annealing furnace shape control method provided by an embodiment of the present invention;

[0059] Figure 6 It is a schematic diagram of adjusting the furnace roll spacing of different furnace sections of a strip annealing furnace shape control method provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0060] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention fall within the scope of protection of the present invention.

[0061] Figure 1A flowchart schematically showing a strip annealing furnace shape control method applicable to an embodiment of the present invention is shown.

[0062] Refer to Figure 1 , an embodiment of the present invention provides a strip annealing furnace shape control method, which can be applied to electronic devices such as PCs, servers, terminals, etc. The method may include the following steps:

[0063] S1: Obtain the first strip parameters;

[0064] Exemplarily, the obtaining of the first strip parameters includes the steps of:

[0065] Obtain the silicon content of the strip;

[0066] Obtain the strip width of the strip;

[0067] Obtain the strip thickness of the strip;

[0068] Obtain the speed of the strip.

[0069] In an embodiment of the present application, the heating load of each section of the annealing furnace is adjusted according to different steel grades, specifications, and running speeds of the strip.

[0070] S2: Adjust the heating load of each section of the annealing furnace according to the first strip parameters;

[0071] Optionally, the adjusting of the heating load of each section of the annealing furnace according to the first strip parameters includes the steps of:

[0072] Judge whether each parameter in the first strip parameters is correspondingly less than a first threshold;

[0073] If so, set the power load of each section of the gas burner heating section to a first first parameter range, and set the power load of each section of the resistance belt heating section to a first second parameter range;

[0074] If not, set the power load of each section of the gas burner heating section to a first third parameter range, and set the power load of each section of the resistance belt heating section to a first fourth parameter range.

[0075] In the embodiment of the present application, when Si ≤ 2.5% or the strip width < 1200 mm or the strip thickness ≤ 0.3 mm or the speed < 160 mpm, the power loads of the 1st - 8th segments of the RTF (gas burner heating section) are respectively set to 30 - 35%, 35 - 40%, 35 - 55%, 50 - 65%, 55 - 65%, 60 - 75%, 65 - 75%, 60 - 70%, and the 1st - 8th segments before the SF (resistance strip heating section) are set at 55 - 60%, the 9th - 12th segments are set at 30 - 45%, and the 12th - 15th segments are set at 20 - 25%. As described above, it can ensure that the strip heats up smoothly in the initial heating stage, and all the RTF burners work under normal loads, ensuring the heating uniformity of the radiant tubes, and avoiding the deterioration of the strip shape caused by the over - fast heating of thin and narrow - gauge strips in the initial stage. When Si ≥ 2.5% or the strip width ≥ 1200 mm or the strip thickness > 0.3 mm or the speed ≥ 160 mpm, the power loads of the 1st - 8th segments of the RTF are respectively set to 50 - 70%, 55 - 70%, 60 - 75%, 65 - 70%, 65 - 75%, 65 - 85%, 65 - 85%, 60 - 75%, and the 1st - 8th segments before the SF are set at 50 - 75%, the 9th - 12th segments are set at 40 - 55%, and the 12th - 15th segments are set at 20 - 35%. As described above, it can ensure that thick and wide strips have enough heat absorption in the initial heating stage, and avoid the uneven heating temperature caused by the insufficient heating of thick and wide - gauge strips in the initial stage, which leads to too high loads in subsequent furnace sections.

[0076] Specifically, the preferred execution levels of the annealing furnace heating load process are sorted in sequence according to the steel type, width, thickness, and speed. Through the above - mentioned optimized distribution of the heating loads of each section of the annealing furnace, on the premise of ensuring product performance, the heating load can be adjusted according to different steel types, specifications, and running speeds of the strip, enabling the heating loads of each furnace section to transition smoothly, avoiding sudden rises and falls in the heating load, so that the strip heats up evenly, and avoiding the generation of internal stress in the strip caused by temperature fluctuations, which deteriorates the strip shape.

[0077] S3: Obtain the second strip parameters;

[0078] Exemplarily, the obtaining of the second strip parameters includes the steps of:

[0079] Obtain the strip width after the strip passes through the resistance strip heating section;

[0080] Obtain the strip thickness after the strip passes through the resistance strip heating section.

[0081] In the embodiment of the present application, after the strip completes recrystallization in the SF section and enters the slow - cooling section to remove stress, this is a key interval affecting the strip shape, and the fan speed of the slow - cooling furnace section is flexibly controlled according to different specifications.

[0082] S4: Adjust the strip cooling rate according to the second strip parameters;

[0083] Optionally, the adjusting the strip cooling rate according to the second strip parameter includes the steps of:

[0084] Determine whether the strip width in the second strip parameter is greater than or equal to a second parameter or the strip thickness is less than or equal to a third parameter;

[0085] If so, set the opening value of the fan valve to the second and fourth parameter ranges, set the opening of the air inlet damper of the cooling radiation tube to the second and fifth parameter ranges, and set the strip cooling rate to the second and sixth parameter ranges.

[0086] Such as Figure 5 , in the embodiment of the present application, when producing strips with a width ≥ 1200 mm or a thickness ≤ 0.3 mm, set the opening value of the fan valve (MV) to 5-15%, set the opening of the air inlet damper of the corresponding cooling radiation tube to 1 / 3 opening to half-open, and control the strip cooling rate within 15.6-21.3 °C / s, which is equivalent to overall extending the stress relief annealing time, significantly improving the middle and rib waves of thin and wide strips, correspondingly increasing the power of the last five sections of RJC to 90%, and ensuring that the strip outlet temperature is reduced to below 120 °C; when producing strips with a width < 1200 mm or a thickness > 0.3 mm, set the opening value of the fan valve to 30-50%, set the opening of the air inlet damper of the corresponding cooling radiation tube to half-open to fully open, and control the strip cooling rate within 35.1-51.4 °C / s, ensuring the cooling uniformity of the strip while cooling the strip temperature to the process required temperature.

[0087] S5: Obtain the third strip parameter;

[0088] Exemplarily, the obtaining the third strip parameter includes the steps of:

[0089] Obtain the strip steel grade composition;

[0090] Obtain the strip elastic modulus;

[0091] Obtain the strip moment of inertia;

[0092] Obtain the strip load;

[0093] Obtain the different expansion amounts of the strip at different temperatures;

[0094] Calculate the strip steel plate deflection;

[0095] Calculate the furnace roll spacing of the preset furnace section.

[0096] In the embodiment of the present application, the annealing furnace described in the present application is horizontal. In the furnace section with a relatively high strip temperature, the strip elongates due to thermal expansion, and a larger sag amount will be formed in the strip between two furnace rolls. Therefore, the wrap angle between the strip and the furnace roll is larger. In this case, the actual running speed of the strip increases and is higher than the linear speed of the furnace roll, and a relatively large reverse frictional force is generated between the strip and the furnace roll. Without any control, the strip tension in the furnace will gradually increase, which in turn increases the internal stress of the strip, resulting in deteriorated strip shape and wear of the furnace rolls.

[0097] Accordingly, based on the different steel grades and different expansion amounts of the strip at different temperatures, the deflection of the steel plate is calculated according to the formula W = qL48EI (q is the load, N / m; E is the elastic modulus, MPa; I is the moment of inertia, mm4; I = ab3 / 12, a is the width of the steel plate, b is the thickness of the steel plate, mm), and the furnace roll spacing in the furnace section with a relatively high strip temperature is calculated to be 1200 - 1500 mm.

[0098] S6: Adjust the furnace roll spacing of different furnace sections according to the third strip parameter.

[0099] Exemplarily, the adjusting the furnace roll spacing of different furnace sections according to the third strip parameter includes the steps of:

[0100] Adjust the spacing of the last three furnace rolls in the furnace section of the gas burner heating section;

[0101] Adjust the furnace section spacing of the resistance band heating section;

[0102] Adjust the spacing of the first three furnace rolls in the slow cooling section.

[0103] Figure 6 (a) is a schematic diagram of the horizontal annealing furnace before transformation, Figure 6 (b) is a schematic diagram of the horizontal annealing furnace after transformation, Figure 6 (c) is a schematic diagram of the sag of the strip on two adjacent furnace rolls before transformation, Figure 6 (d) is a schematic diagram of the sag of the strip on two adjacent furnace rolls after transformation, Figure 6 (e) is an approximate schematic diagram of the sag of the strip when the spacing between adjacent furnace rolls is 1900 mm, Figure 6 (f) is an approximate schematic diagram of the sag of the strip when the spacing between adjacent furnace rolls is 1200 mm.

[0104] In the embodiment of the present application, the roller spacing in the furnace section with a relatively high plate temperature is calculated to be 1200 - 1500 mm. Accordingly, the roller spacings of the last three rollers in the RTF furnace section, the furnace section spacing in the SF section, and the roller spacings of the first three rollers in the slow cooling section are all adjusted to 1200 - 1500 mm, so as to reduce the wrap angle between the strip and the rollers, reduce the reverse friction force between the strip and the rollers, and at the same time reduce the sag of the strip between the rollers, thereby greatly eliminating the internal stress of the strip caused thereby, and eliminating the middle, rib waves and creases of the strip. The sag of the strip is small, and it can be approximately regarded as a triangle with the strip and the connecting line of the tops of two adjacent rollers. Taking the roller spacing of some adjacent rollers after transformation as 1200 mm as an example, the sag of the strip changes from h1 to h2. Assuming that the expansion coefficient of the strip in the length direction is β, according to the Pythagorean theorem, h1 = 850(β² - 1)^0.5 and h2 = 600(β² - 1)^0.5 can be obtained. The sag of the strip is significantly reduced, which is of positive significance for improving the edge wave defect. Finally, the shape of the strip after annealing of silicon steel eliminates the middle and rib waves, and the sharpness of 80% of the strip is ≤ 0.65%.

[0105] Such as Figure 2 , a strip annealing furnace shape control device is provided, and the device includes:

[0106] The first strip parameter acquisition module 10 is used to acquire the first strip parameter;

[0107] The first adjustment module 20 is used to adjust the heating load of each section of the annealing furnace according to the first strip parameter;

[0108] The second strip parameter acquisition module 30 is used to acquire the second strip parameter;

[0109] The second adjustment module 40 is used to adjust the strip cooling rate according to the second strip parameter;

[0110] The third strip parameter acquisition module 50 is used to acquire the third strip parameter;

[0111] The third adjustment module 60 is used to adjust the roller spacing of different furnace sections according to the third strip parameter.

[0112] A strip annealing furnace shape control device provided by the present application can execute a strip annealing furnace shape control method provided by the above steps.

[0113] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modification examples falling within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

[0114] Reference is made below to Figure 3 , which shows a schematic structural diagram of an electronic device 100 suitable for implementing the embodiments of the present disclosure. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Tablet Computers), PMPs (Portable Multimedia Players), in-vehicle terminals (such as in-vehicle navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 3 The electronic device shown is merely an example and should not impose any limitations on the functions and usage scope of the embodiments of the present disclosure.

[0115] As Figure 3 shown, the electronic device 100 may include a processing device (such as a central processing unit, a graphics processing unit, etc.) 101, which may perform various appropriate actions and processes according to the programs stored in the read-only memory (ROM) 102 or the programs loaded from the storage device 108 into the random access memory (RAM) 103. In the RAM 103, various programs and data required for the operation of the electronic device 100 are also stored. The processing device 101, the ROM 102, and the RAM 103 are connected to each other through a bus 104. The input / output (I / O) interface 105 is also connected to the bus 104.

[0116] Generally, the following devices may be connected to the I / O interface 105: an input device 106 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 107 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 108 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 109. The communication device 109 may allow the electronic device 100 to communicate with other devices wirelessly or wiredly to exchange data. Although the electronic device 100 with various devices is shown in the figure, it should be understood that it is not required to implement or have all the shown devices. More or fewer devices may be implemented or had alternatively.

[0117] Particularly, according to the embodiments of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, the embodiments of the present disclosure include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes program codes for performing the methods shown in the flowcharts. In such an embodiment, the computer program may be downloaded and installed from the network through the communication device 109, or installed from the storage device 108, or installed from the ROM 102. When the computer program is executed by the processing device 101, the above-mentioned functions defined in the methods of the embodiments of the present disclosure are executed.

[0118] Refer to the following Figure 4 , which shows a schematic structural diagram of a computer-readable storage medium suitable for implementing the embodiments of the present disclosure. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it can implement the strip annealing furnace shape control method described in any one of the above.

[0119] A strip annealing furnace shape control method, device and storage medium provided by the present application can solve the difficult problems of shape control and poor shape control in the existing silicon steel annealing process technology.

[0120] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0121] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A strip shape control method for a strip annealing furnace, characterized in that: The method comprises the steps of: Obtaining parameters of the first steel strip; adjusting the heating load of each section of the annealing furnace according to the first strip steel parameter; Obtain the parameters of the second strip; adjusting the cooling rate of the steel strip according to the second steel strip parameter; Get the parameters of the third strip; adjusting the spacing between furnace rollers in different furnace sections according to the third steel strip parameters; The obtaining of the first strip steel parameter comprises the steps of: obtaining the silicon content of the strip steel; obtaining the strip steel width of the strip steel; obtaining the strip steel thickness of the strip steel; obtaining the speed of the strip steel; the adjusting of the heating load of each section of the annealing furnace according to the first strip steel parameter comprises the steps of: judging whether each parameter in the first strip steel parameter corresponds to less than a first threshold value; if so, setting the power load of each section of the gas burner heating section to the first first parameter range, and setting the power load of each section of the resistance belt heating section to the first second parameter range; if not, setting the power load of each section of the gas burner heating section to the first third parameter range, and setting the power load of each section of the resistance belt heating section to the first fourth parameter range; The obtaining of the second strip steel parameter comprises the steps of: obtaining the strip steel width after the strip steel passes through the resistance band heating section; obtaining the strip steel thickness after the strip steel passes through the resistance band heating section; the adjusting of the strip steel cooling rate according to the second strip steel parameter comprises the steps of: judging whether the strip steel width in the second strip steel parameter is greater than or equal to the second parameter or whether the strip steel thickness is less than or equal to the third parameter; if so, setting the fan valve opening value to the second and fourth parameter ranges, setting the cooling radiation tube suction port air door opening to the second and fifth parameter ranges, and setting the strip steel cooling rate to the second and sixth parameter ranges; The step of obtaining the third strip steel parameter includes: obtaining the strip steel grade composition; obtaining the strip steel elastic modulus; obtaining the strip steel inertia moment; obtaining the strip steel load; obtaining the different expansion amounts of the strip steel at different temperatures; and calculating the strip steel plate deflection. Calculating the spacing of the furnace rollers of the preset furnace section; said adjusting the spacing of the furnace rollers of different furnace sections according to the third strip steel parameter comprises the following steps: adjusting the spacing of the last three furnace rollers of the furnace section of the gas burner heating section; adjusting the spacing of the furnace section of the resistance belt heating section; adjusting the spacing of the first three furnace rollers of the slow cooling section; When Si is less than 2.5%, the strip width is less than 1200mm, the strip thickness is less than or equal to 0.3mm, and the speed is less than 160mpm, the power load of the 1-8 sections of the gas burner heating section is set to 30-35%, 35-40%, 35-55%, 50-65%, 55-65%, 60-75%, 65-75%, 60-70% respectively, the first 1-8 sections of the resistance belt heating section are set to 55-60%, sections 9-12 are set to 30-45%, and sections 12-15 are set to 20-25%. When Si≥2.5% and strip width≥1200mm and strip thickness>0.3mm and speed≥160mpm, set the power load of sections 1-8 of the gas burner heating section to 50-70%, 55-70%, 60-75%, 65-70%, 65-75%, 65-85%, 65-85%, 60-75% respectively, and the first 1-8 sections of the resistance belt heating section to 50-75%, sections 9-12 to 40-55%, and sections 12-15 to 20-35%; When the strip width is ≥1200mm and the strip thickness is ≤0.3mm, the fan valve opening value is set to 5-15%, and the corresponding cooling radiant tube suction door opening is set to 1 / 3 opening to half-open, and the strip cooling rate is controlled at 15.6-21.3℃ / s. When the strip width is <1200mm and the strip thickness is >0.3mm, the fan valve opening value is set to 30-50%, and the corresponding cooling radiant tube suction door opening is set to half-open to fully open, and the strip cooling rate is controlled at 35.1-51.4℃ / s. According to the different steel grades and different expansion amounts of strip steel at different temperatures, the steel plate deflection is calculated according to the formula W = qL4 / 8EI, and the furnace roller spacing of the preset furnace section is calculated to be 1200-1500mm, where q is the load, N / m; E is the elastic modulus, MPa; I is the moment of inertia, mm 4 ; I = ab 3 / 12, a is the width of the steel plate, b is the thickness of the steel plate, mm.

2. A strip annealing furnace shape control device for the method according to claim 1, characterized in that: The device comprises: A first strip steel parameter acquisition module, used to acquire first strip steel parameters; A first adjustment module, used for adjusting the heating load of each section of the annealing furnace according to the first strip steel parameter; A second strip steel parameter acquisition module, used to acquire the second strip steel parameters; A second adjustment module, used for adjusting the cooling rate of the steel strip according to the second steel strip parameter; A third strip steel parameter acquisition module, used to acquire the third strip steel parameters; The third adjustment module is used to adjust the spacing between furnace rollers in different furnace sections according to the third strip steel parameter.

3. An electronic 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 program, the steps of the method according to claim 1 are implemented.

4. A storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method according to claim 1 are implemented.

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