Plate temperature control method and system and plate heat treatment equipment

Abstract

According to the plate temperature control method and system and the plate heat treatment equipment, the actual temperature of a plate passing through a cooling section of a heating furnace is collected through a temperature sensor, the rotating speed of a cooling fan is adjusted through a control mechanism according to the actual temperature and the set target temperature, the cooling temperature control precision is guaranteed, and energy consumption is greatly reduced. And the labor intensity of post workers is reduced.

Description

Technical Field

[0001] The present invention relates to Plate heat treatment The technical field relates particularly to a plate temperature control method, system and plate heat treatment equipment. Background Art

[0002] In the production process of strip steel, especially silicon steel, normalizing heat treatment is required to improve magnetic permeability and reduce hysteresis loss. Continuous normalizing furnace is a commonly used heat treatment device. Its main function is to heat the strip steel to the set normalizing temperature, keep it warm and cool it at an appropriate cooling rate to achieve the requirements of the strip steel normalizing heat treatment process. This treatment method can improve the grain structure of silicon steel and improve its magnetic permeability and magnetic properties.

[0003] At present, the cooling section of the normal production line in the industry is manually controlled. The operator manually sets the cooling fan power or pressure to control the strip temperature in the cooling section. When any factor such as strip thickness, width, speed, furnace temperature, etc. changes, the operator needs to adjust the pressure value of the cooling fan in time to avoid the strip temperature at the cooling section outlet exceeding the control range. Therefore, there are disadvantages such as low control accuracy, high energy consumption, and high labor intensity of operators. Summary of the invention

[0004] In view of the above problems, the present application is proposed to provide a plate temperature control method, system and plate heat treatment equipment that overcome the above problems or at least partially solve the above problems.

[0005] In a first aspect, a plate temperature control method is provided, comprising:

[0006] Collect the actual temperature of the plate passing through the cooling section of the heating furnace;

[0007] According to the actual temperature and the set target temperature, the rotation speed of multiple cooling fans that supply cooling air to the cooling section is adjusted.

[0008] Optionally, according to the actual temperature and the set target temperature, the speed of multiple cooling fans supplying cooling air to the cooling section is adjusted, including:

[0009] Determine the difference between the actual temperature and the target temperature;

[0010] Determine the target air pressure of multiple cooling fans according to the difference between the actual temperature and the target temperature;

[0011] The target speeds of the multiple cooling fans are determined according to the target wind pressures of the multiple cooling fans, and the operation of the multiple cooling fans is controlled according to the target speeds.

[0012] In a second aspect, a plate temperature control system is provided, comprising:

[0013] The temperature sensor is arranged in the cooling section of the heating furnace and is used to collect the actual temperature of the plate passing through the cooling section;

[0014] A plurality of cooling fans, wherein the outlet of each fan of the plurality of fans is connected to the cooling section, and is used to supply cooling air to the cooling section;

[0015] The control mechanism is connected to the temperature sensor and the plurality of cooling fans respectively, and is used for receiving the actual temperature of the plate sent by the temperature sensor, and adjusting the rotation speed of the plurality of cooling fans according to the actual temperature and the set target temperature.

[0016] Optionally, the control mechanism includes a first control mechanism, a processor, and a second control mechanism, wherein the input end of the first control mechanism is electrically connected to the temperature sensor, the output end of the first control mechanism is electrically connected to the input end of the processor, the input end of the second control mechanism is electrically connected to the output end of the processor, and the output end of the second control mechanism is electrically connected to a plurality of cooling fans;

[0017] According to the actual temperature and the set target temperature, the speed of multiple cooling fans is adjusted, including:

[0018] The first control mechanism receives the actual temperature of the plate sent by the temperature sensor and determines the difference between the actual temperature and the target temperature;

[0019] The processor receives the difference between the actual temperature and the target temperature sent by the first control mechanism, and determines the target wind pressure of the plurality of cooling fans according to the difference between the actual temperature and the target temperature;

[0020] The second control mechanism determines the target rotation speeds of the multiple cooling fans according to the target air pressures of the multiple cooling fans sent by the processor, and controls the operation of the multiple cooling fans according to the target rotation speeds.

[0021] Optionally, the second control mechanism includes multiple first control modules, the input end of each of the multiple first control modules is electrically connected to the processor, the output end of each of the multiple first control modules is electrically connected to a cooling fan, and each of the multiple first control modules is used to receive a target wind pressure of the cooling fan corresponding to the first control module sent by the processor, and determine a target speed of the cooling fan corresponding to the first control module based on the target wind pressure, and control the operation of the cooling fan corresponding to the first control module based on the target speed.

[0022] Optionally, the plate temperature control system further includes:

[0023] A pressure sensor is arranged in the cooling section and is used to detect the actual pressure of the cooling section;

[0024] At least one exhaust fan, each exhaust fan is arranged in an exhaust pipe, the inlet of the exhaust pipe is connected to the cooling section, and the outlet of the exhaust pipe is arranged outside the cooling section;

[0025] The control mechanism is electrically connected to the pressure sensor and at least one exhaust fan, and is used to receive the actual pressure of the cooling section sent by the pressure sensor, and adjust the speed of at least one exhaust fan according to the actual pressure of the cooling section and the set target pressure.

[0026] Optionally, the control mechanism also includes:

[0027] The third control mechanism, the input end of the third control mechanism is electrically connected to the pressure sensor, and the output end of the third control mechanism is electrically connected to at least one exhaust fan, for receiving the actual pressure of the cooling section sent by the pressure sensor, and adjusting the rotation speed of at least one exhaust fan according to the actual pressure of the cooling section and the set target pressure.

[0028] Optionally, the third control mechanism includes at least one second control module; for each second control module of at least one second control module, the input end of the second control module is electrically connected to the pressure sensor, for receiving the actual pressure of the cooling section sent by the pressure sensor;

[0029] The output end of the second control module is electrically connected to an exhaust fan, and is used to determine the target speed of the exhaust fan corresponding to the second control module based on the actual pressure of the cooling section and the set target pressure, and control the operation of the exhaust fan corresponding to the second control module based on the target speed.

[0030] In a third aspect, the present application further provides a plate heat treatment device, comprising: a heating furnace and the plate temperature control system of the second aspect, the heating furnace comprising a plurality of furnace sections arranged in sequence, and the plurality of furnace sections comprising a cooling section.

[0031] In a fourth aspect, the present application also provides a server, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the server executes the method provided in the first aspect.

[0032] In a fifth aspect, the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the computer executes the method provided in the first aspect.

[0033] In a sixth aspect, the present application also provides a computer program product, including a computer program, which, when executed by a computer, enables the computer to execute the method provided in the first aspect.

[0034] The technical solution provided by this application has at least the following technical effects or advantages:

[0035] The plate temperature control method, system and plate heat treatment equipment provided in the present application collect the actual temperature of the plate passing through the cooling section of the heating furnace through a temperature sensor, and adjust the speed of the cooling fan according to the actual temperature and the set target temperature through a control mechanism, thereby ensuring the cooling temperature control accuracy, greatly reducing energy consumption, and reducing the labor intensity of employees on the job.

[0036] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0038] Figure 1 This is a flow chart of the plate temperature control method in the embodiment of this application;

[0039] Figure 2 This is a wireframe diagram of the plate temperature control system in the embodiment of this application;

[0040] Figure 3 This is an application scenario diagram of the plate temperature control system in the embodiment of this application;

[0041] Figure 4 This is a wireframe diagram of the plate heat treatment equipment in the schematic diagram of the embodiment of the present application. DETAILED DESCRIPTION

[0042] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0043] Various structural schematic diagrams according to embodiments of the present application are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may further design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0044] In order to better understand the above-mentioned technical scheme, the above-mentioned technical scheme will be described in detail below in combination with specific implementation methods. It should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical scheme of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0045] Silicon steel is an important electrical material, widely used in power equipment and transformers. In order to improve the magnetic permeability of silicon steel and reduce hysteresis loss, silicon steel needs to be subjected to normalization heat treatment.

[0046] The continuous normalizing furnace is an indispensable key equipment in the important industrial normalizing heat treatment in metallurgy and machinery industries today. It plays a vital role in the unit. Its main function is to heat the strip to the set normalizing temperature, keep it warm and cool it at an appropriate cooling rate to achieve the requirements of the strip normalizing heat treatment process. This treatment method can improve the grain structure of silicon steel and improve its magnetic permeability and magnetic properties.

[0047] Cooling control after strip heating is an important part of normalizing process control. Cooling control has a vital impact on the performance and quality of strip. Its control accuracy has a great influence on the metallographic structure of strip and is an important factor in determining the processability, mechanical properties and physical properties of finished strip. If the cooling process parameters of the normalizing furnace exceed the control requirements, the performance and quality of the finished strip will deteriorate.

[0048] At present, the cooling section of the normalizing production line in the industry is manually controlled, and the operator manually sets the cooling fan power or pressure to control the temperature of the steel plate in the cooling section. The manual control method of the cooling section has the disadvantages of low cooling temperature control accuracy, lack of intelligent control, high energy consumption of the cooling fan, and high labor intensity of the operator. How to achieve automatic control of the cooling section of the normalizing furnace is the current technical bottleneck.

[0049] In view of this, the present application provides a plate temperature control system, which collects the actual temperature of the plate passing through the cooling section of the heating furnace through a temperature sensor, and adjusts the speed of the cooling fan according to the actual temperature and the set target temperature through a control mechanism, thereby ensuring the cooling temperature control accuracy, greatly reducing energy consumption, and reducing the labor intensity of employees on the job.

[0050] Please refer to Figure 1 , Figure 1 This is a flow chart of the plate temperature control method in the embodiment of the present application, including:

[0051] S101, collecting the actual temperature of the plate passing through the cooling section of the heating furnace;

[0052] S102, adjusting the rotation speeds of multiple cooling fans that supply cooling air to the cooling section according to the actual temperature and the set target temperature.

[0053] In some optional implementations, the operation of S102 specifically includes:

[0054] The first step is to determine the difference between the actual temperature and the target temperature;

[0055] The second step is to determine the target air pressure of multiple cooling fans according to the difference between the actual temperature and the target temperature;

[0056] The third step is to determine the target speeds of the multiple cooling fans according to the target wind pressures of the multiple cooling fans, and control the operation of the multiple cooling fans according to the target speeds.

[0057] Based on the same inventive concept, the present application also provides a plate temperature control system, such as Figure 2 As shown, the plate temperature control system 200 includes:

[0058] The temperature sensor 201 is arranged in the cooling section of the heating furnace to collect the actual temperature of the plate passing through the cooling section. The temperature sensor 201 can be a thermistor, a thermocouple, an RTD resistance temperature detector, a digital thermometer, an analog thermometer, etc., which will not be described here.

[0059] Multiple cooling fans 202, each fan outlet of the multiple fans is connected to the cooling section, for supplying cooling air to the cooling section. The cooling fans 202 can be dry cooling fans 202, wet cooling fans 202, hybrid cooling fans 202, etc., which will not be described here.

[0060] The control mechanism 203 is connected to the temperature sensor 201 and the plurality of cooling fans 202 respectively, and is used to receive the actual temperature of the plate sent by the temperature sensor 201, and adjust the rotation speed of the plurality of cooling fans 202 according to the actual temperature and the set target temperature.

[0061] The plate temperature control system provided in the embodiment of the present application can be used to control the temperature of the strip in the cooling section of the heating furnace. A plate temperature meter (temperature sensor 201) is installed at the outlet of the cooling section of the normalizing furnace, and the interlocking of the plate temperature at the cooling section outlet and the cooling fan power is added to the program. The operator sets the target plate temperature at the cooling section outlet, and the plate temperature meter is responsible for real-time monitoring of the plate temperature out of the furnace, and transmits the temperature data to the control mechanism 203 (control mechanism 203). The control mechanism 203 calculates the required cooling fan speed based on the preset temperature data and the current plate temperature data out of the furnace, and controls the operation of the cooling fan through the actuator to ensure the cooling temperature control accuracy, greatly reduce energy consumption, and reduce the labor intensity of employees on the job.

[0062] The following takes the continuous normalizing furnace processing belt as an example, and combines Figure 3The plate temperature control system provided in the embodiment of the present application is described, and this example does not constitute a limitation on the embodiment of the present application. The following embodiments can be combined with each other, and the same or similar concepts or processes will not be described in detail.

[0063] like Figure 3 As shown, the normalizing furnace includes a heating section 301 and a cooling section 302 which are arranged in sequence. The plate temperature control system provided in the embodiment of the present application is mainly arranged in the cooling section 302. The strip steel runs from the heating section 301 to the cooling section 302. Two cooling fans 202 blow cold air into the cooling section 302 to cool the strip steel entering the cooling section 302. The temperature sensor 201 is arranged at the outlet of the cooling section 302 to collect the actual temperature of the strip steel passing through the cooling section 302. It can be understood that this embodiment gives an example in which the number of cooling fans 202 is two, and the two cooling fans 202 are arranged in the cooling section 302 at intervals along the direction in which the strip steel runs. The number of cooling fans 202 can be set as needed by comprehensively considering factors such as the length of the cooling section 302 and the cooling speed.

[0064] The control mechanism 203 receives the actual temperature of the steel strip sent by the temperature sensor 201, and adjusts the rotation speed of the plurality of cooling fans 202 according to the actual temperature and the set target temperature. The specific operation includes: if the actual temperature is higher than the target temperature, the rotation speed of the cooling fan 202 is controlled to increase to speed up the cooling of the steel strip; if the actual temperature is lower than the target temperature, the rotation speed of the cooling fan 202 is controlled to decrease, so that the steel strip can be stably cooled in the cooling section 302.

[0065] In some optional implementations, the control mechanism 203 includes a first control mechanism 2031, a processor 2032, and a second control mechanism 2033. Figure 3 As shown, the input end of the first control mechanism 2031 is electrically connected to the temperature sensor 201, the output end of the first control mechanism 2031 is electrically connected to the input end of the processor 2032, the input end of the second control mechanism 2033 is electrically connected to the output end of the processor 2032, and the output end of the second control mechanism 2033 is electrically connected to the two cooling fans 202.

[0066] According to the actual temperature and the set target temperature, the speeds of the two cooling fans 202 are adjusted. The specific operations include:

[0067] The first control mechanism 2031 receives the actual temperature of the plate sent by the temperature sensor 201 and determines the difference between the actual temperature and the target temperature. The processor 2032 receives the difference between the actual temperature and the target temperature sent by the first control mechanism 2031 and determines the target wind pressure of the two cooling fans 202 according to the difference between the actual temperature and the target temperature.

[0068] The second control mechanism 2033 determines the target rotation speeds of the two cooling fans 202 according to the target air pressures of the two cooling fans 202 sent by the processor 2032, and controls the operation of the two cooling fans 202 according to the target rotation speeds.

[0069] In some optional embodiments, the second control mechanism 2033 includes multiple first control modules 303, the input end of each first control module 303 of the multiple first control modules 303 is electrically connected to the processor 2032, and the output end of each first control module 303 of the multiple first control modules 303 is electrically connected to a cooling fan 202, and each first control module 303 of the multiple first control modules 303 is used to receive the target wind pressure of the cooling fan 202 corresponding to the first control module 303 sent by the processor 2032, and determine the target speed of the cooling fan 202 corresponding to the first control module 303 based on the target wind pressure, and control the operation of the cooling fan 202 corresponding to the first control module 303 based on the target speed.

[0070] like Figure 3 As shown, in this embodiment, the second control mechanism 2033 includes two first control modules 303, and the two first control modules 303 are respectively connected one-to-one with the two cooling fans 202, and each first control module 303 controls one cooling fan 202 respectively. The processor 2032 sends the target wind pressure of each cooling fan 202 to the corresponding first control module 303, and each first control module 303 determines the target speed of the corresponding cooling fan 202 according to the received target wind pressure to control the operation of the corresponding cooling fan 202.

[0071] It is understandable that the second control mechanism 2033 can adopt a control module to be electrically connected to the two cooling fans 202 respectively, so as to synchronously control the operation of the two cooling fans 202 .

[0072] In some optional embodiments, Figure 2 As shown, the plate temperature control system 200 provided in the embodiment of the present application further includes:

[0073] The pressure sensor 204 is disposed in the cooling section 302 and is used to detect the actual pressure of the cooling section 302 .

[0074] The pressure sensor 204 may be a piezoresistive pressure sensor 204, a diaphragm pressure sensor 204, a variable-sensitivity pressure sensor 204, a switch pressure sensor 204, a capacitive pressure sensor 204, etc., which will not be described in detail here.

[0075] At least one exhaust fan 205 is provided. Each exhaust fan 205 is disposed in an exhaust pipe. The inlet of the exhaust pipe is connected to the cooling section 302 , and the outlet of the exhaust pipe is disposed outside the cooling section 302 .

[0076] The exhaust fan 205 can be a dry fan, a wet fan, a mixed fan, etc., which will not be described here.

[0077] The control mechanism 203 is electrically connected to the pressure sensor 204 and at least one exhaust fan 205, and is used to receive the actual pressure of the cooling section 302 sent by the pressure sensor 204, and adjust the rotation speed of at least one exhaust fan 205 according to the actual pressure of the cooling section 302 and the set target pressure.

[0078] In some optional implementations, the control mechanism 203 further includes:

[0079] The third control mechanism 2034, the input end of the third control mechanism 2034 is electrically connected to the pressure sensor 204, and the output end of the third control mechanism 2034 is electrically connected to at least one exhaust fan 205, for receiving the actual pressure of the cooling section 302 sent by the pressure sensor 204, and adjusting the rotation speed of at least one exhaust fan 205 according to the actual pressure of the cooling section 302 and the set target pressure.

[0080] like Figure 3 As shown, in the embodiment of the present application, a waste exhaust pipe 304 is arranged on the side of the normalizing furnace cooling section 302 opposite to the two cooling fans 202, and a waste exhaust fan 205 is arranged in the waste exhaust pipe 304. The cooling fan 202 continuously blows cold air into the cooling section 302, and the waste exhaust fan 205 draws away the hot air from the cooling section 302, thereby ensuring the cooling effect on the strip steel and ensuring the pressure stability of the cooling section 302.

[0081] The third control mechanism 2034 includes at least one second control module; for each second control module of at least one second control module, the input end of the second control module is electrically connected to the pressure sensor 204, and is used to receive the actual pressure of the cooling section 302 sent by the pressure sensor 204. The output end of the second control module is electrically connected to an exhaust fan 205, and is used to determine the target speed of the exhaust fan 205 corresponding to the second control module according to the actual pressure of the cooling section 302 and the set target pressure, and control the exhaust fan 205 corresponding to the second control module to operate according to the target speed.

[0082] like Figure 3As shown, the number of exhaust fans 205 is one, and the third control mechanism 2034 includes a second control module corresponding to the exhaust fan 205. It can be understood that if there are multiple exhaust fans 205, multiple exhaust fans 205 can be synchronously controlled by one second control module, or multiple second control modules can be used to control the exhaust fans 205 one by one.

[0083] The following is an example of how the plate temperature control system provided in the embodiment of the present application is applied to a normalizing furnace to control the temperature of a strip steel. The specific implementation method is as follows:

[0084] 1. Install the temperature sensor 201: Install the temperature sensor 201 at the outlet of the cooling section of the normalizing furnace to monitor the steel plate temperature T1 at the outlet of the cooling section in real time.

[0085] 2. Set the target plate temperature T2: The operator enters the target plate temperature T2 of the strip at the outlet of the normalizing furnace cooling section in the corresponding input box.

[0086] 3. Compare the monitored board temperature T1 with the target board temperature T2: The system sends the cooling section outlet board temperature T1 measured in real time by the temperature sensor 201 to the control mechanism 203, and compares it with the target board temperature T2 to achieve automatic adjustment of the subsequent cooling fan 202 speed.

[0087] 4. Control the air pressure P1 of the cooling fan: The real-time detection data of the board temperature enters the corrector Correction for data correction after comparison, and calculates the corresponding cooling fan air pressure P1.

[0088] 5. Control the rotation speed of the two cooling fans: The system sends the calculated wind pressure P1 of the cooling fan to the two first control modules 303 corresponding to the two cooling fans 202, and then calculates the corresponding two cooling fans 202. The calculation formula is as follows:

[0089]

[0090] Among them, n1 is the rotation speed of the two cooling fans, and γ1 is the correction coefficient.

[0091] 6. Control the speed of the exhaust fan 205: The pressure gauge PT calculates the pressure P2 in the cooling section bellows. The system sends the signal of the pressure P2 to the control module 3, and then calculates the speed of the exhaust fan M3. The calculation formula is as follows:

[0092] n2=P2×γ2×100%;

[0093] Among them, n2 is the speed of the exhaust fan, and γ2 is the correction coefficient.

[0094] During the continuous operation of the strip, the system measures the changes in the outlet plate temperature T2 of the cooling section in real time based on the temperature sensor 201, and continuously adjusts and monitors the operating parameters of the two cooling fans 202 and the exhaust fan 205 through a feedback mechanism, forming a closed-loop control to achieve automatic control of the cooling section.

[0095] Through the above method, the temperature control rate of the furnace plate has reached 100%, the automatic control of the cooling fan speed is achieved, the temperature control accuracy of the normalizing furnace cooling section is improved, energy consumption is reduced, the labor intensity of employees is reduced, etc., the cooling process requirements are met, and the quality and efficiency of the products are guaranteed.

[0096] This specific implementation mode is a preferred implementation mode of the present invention and is only used to illustrate the present invention. It is not intended to limit the present invention in any form. Therefore, any equivalent changes made according to the process, equipment, principle, etc. of the present invention should be included in the protection scope of the present invention.

[0097] The plate temperature control method and device provided in the embodiment of the present application are applied to the automatic control of the strip temperature in the cooling section of the normalizing furnace. Compared with the existing manual control method, the present invention allows the operator to set the target plate temperature at the cooling section outlet, and the system can automatically control the fan speed and wind pressure in the cooling section. The technical advantages are as follows:

[0098] 1. By accurately controlling the temperature of the plate out of the oven, changes in material properties caused by excessively high or low temperatures can be avoided, thereby improving the overall quality of the product. The control accuracy of the plate temperature at the cooling section outlet is greatly improved, which improves product quality and performance.

[0099] 2. The automatic control system can quickly respond to changes in the temperature of the out-of-the-furnace plate and timely adjust the operation of the cooling fan. When the out-of-the-furnace plate temperature approaches or reaches the preset value, the fan speed can be automatically reduced or turned off to save power resources. The cooling fan realizes economical operation, eliminates energy waste, and significantly reduces energy consumption.

[0100] 3. Reduce the difficulty of operation and the labor intensity of employees: the operator only needs to set the target temperature parameters, and the control system can automatically complete the adjustment of the cooling fan without frequent manual intervention. This reduces the difficulty of operation and reduces the labor intensity of operators. The cooling fan is automatically controlled, and the position no longer needs to pay attention to changes in the external environment and manually adjust the cooling fan speed or air pressure, which greatly reduces the labor intensity of employees, eliminates the risk of roller scalding caused by misoperation, and improves production stability.

[0101] 4. Improve product quality and production efficiency, and improve production stability. The automatic control system can monitor the changes in the temperature of the out-of-furnace plate in real time, and take timely measures when the temperature is abnormal to avoid equipment damage or safety accidents caused by excessive out-of-furnace temperature.

[0102] 5. The control system can flexibly adjust control parameters and strategies according to different normalization processes and product requirements. This enables the same set of equipment to adapt to a variety of different normalization needs, improving equipment utilization and flexibility.

[0103] 6. The control system can record and save the historical data of the temperature of the out-of-furnace plate, which is convenient for subsequent data analysis and quality traceability. Through the analysis of historical data, the control parameters and strategies can be further optimized to improve the performance of the control system.

[0104] Based on the same inventive concept, the present application also provides a plate heat treatment device, such as Figure 4 As shown, the plate heat treatment equipment 400 includes: a heating furnace 401 and the plate temperature control system 200 of the above embodiment, the heating furnace 401 includes a plurality of furnace sections arranged in sequence, and the plurality of furnace sections include a cooling section. The heating furnace can be a normalizing furnace, or other furnaces with heating functions, which will not be described here.

[0105] The plate heat treatment equipment 400 provided in the embodiment of the present application can be used to perform heat treatment on the plate. During the process, the above-mentioned operations S101 to S102 are performed through the plate temperature control system 200, and the actual temperature of the plate passing through the cooling section of the heating furnace is collected by the temperature sensor. The speed of the cooling fan is adjusted according to the actual temperature and the set target temperature through the control mechanism to ensure the cooling temperature control accuracy, greatly reduce energy consumption, and reduce the labor intensity of employees on the job.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0107] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

Claims

1. A plate temperature control method, characterized in that: include: Collect the actual temperature of the plate passing through the cooling section of the heating furnace; According to the actual temperature and the set target temperature, the rotation speeds of the plurality of cooling fans that supply cooling air to the cooling section are adjusted.

2. The plate temperature control method according to claim 1, characterized in that: The adjusting the rotation speeds of multiple cooling fans that supply cooling air to the cooling section according to the actual temperature and the set target temperature includes: determining a difference between the actual temperature and the target temperature; Determining target air pressures of the plurality of cooling fans according to a difference between the actual temperature and the target temperature; The target rotation speeds of the plurality of cooling fans are determined according to the target wind pressures of the plurality of cooling fans, and the operation of the plurality of cooling fans is controlled according to the target rotation speeds.

3. A plate temperature control system, characterized in that: include; A temperature sensor is provided in the cooling section of the heating furnace and is used to collect the actual temperature of the plate passing through the cooling section; A plurality of cooling fans, wherein an outlet of each of the plurality of fans is connected to the cooling section, and is used to supply cooling air to the cooling section; The control mechanism is connected to the temperature sensor and the plurality of cooling fans respectively, and is used to receive the actual temperature of the plate sent by the temperature sensor, and adjust the rotation speed of the plurality of cooling fans according to the actual temperature and the set target temperature.

4. The plate temperature control system according to claim 3, characterized in that: The control mechanism includes a first control mechanism, a processor, and a second control mechanism, wherein an input end of the first control mechanism is electrically connected to the temperature sensor, an output end of the first control mechanism is electrically connected to an input end of the processor, an input end of the second control mechanism is electrically connected to an output end of the processor, and an output end of the second control mechanism is electrically connected to the plurality of cooling fans; The adjusting the rotation speeds of the plurality of cooling fans according to the actual temperature and the set target temperature specifically includes: The first control mechanism receives the actual temperature of the plate sent by the temperature sensor, and determines the difference between the actual temperature and the target temperature; The processor receives the difference between the actual temperature and the target temperature sent by the first control mechanism, and determines the target wind pressure of the plurality of cooling fans according to the difference between the actual temperature and the target temperature; The second control mechanism determines target rotation speeds of the multiple cooling fans according to the target air pressures of the multiple cooling fans sent by the processor, and controls the operation of the multiple cooling fans according to the target rotation speeds.

5. The plate temperature control system according to claim 4, characterized in that: The second control mechanism includes multiple first control modules, the input end of each of the multiple first control modules is electrically connected to the processor respectively, the output end of each of the multiple first control modules is electrically connected to one of the cooling fans, and each of the multiple first control modules is used to receive the target wind pressure of the cooling fan corresponding to the first control module sent by the processor, and determine the target speed of the cooling fan corresponding to the first control module based on the target wind pressure, and control the operation of the cooling fan corresponding to the first control module based on the target speed.

6. The plate temperature control system according to claim 3, characterized in that: Also includes: A pressure sensor, disposed in the cooling section, for detecting an actual pressure in the cooling section; At least one exhaust fan, each of which is disposed in an exhaust pipe, the inlet of the exhaust pipe is connected to the cooling section, and the outlet of the exhaust pipe is disposed outside the cooling section; The control mechanism is electrically connected to the pressure sensor and the at least one exhaust fan, and is used to receive the actual pressure of the cooling section sent by the pressure sensor, and adjust the rotation speed of the at least one exhaust fan according to the actual pressure of the cooling section and the set target pressure.

7. The plate temperature control system according to claim 6, characterized in that: The control mechanism also includes: A third control mechanism, wherein the input end of the third control mechanism is electrically connected to the pressure sensor, and the output end of the third control mechanism is electrically connected to the at least one exhaust fan, and is used for receiving the actual pressure of the cooling section sent by the pressure sensor, and adjusting the rotation speed of the at least one exhaust fan according to the actual pressure of the cooling section and the set target pressure.

8. The plate temperature control system according to claim 7, characterized in that: The third control mechanism comprises at least one second control module; for each second control module of the at least one second control module, the input end of the second control module is electrically connected to the pressure sensor, for receiving the actual pressure of the cooling section sent by the pressure sensor; The output end of the second control module is electrically connected to an exhaust fan, and is used to determine the target speed of the exhaust fan corresponding to the second control module based on the actual pressure of the cooling section and the set target pressure, and control the operation of the exhaust fan corresponding to the second control module according to the target speed.

9. A plate heat treatment equipment, characterized in that: include: A heating furnace and a plate temperature control system as described in any one of claims 3 to 8, wherein the heating furnace comprises a plurality of furnace sections arranged in sequence, and the plurality of furnace sections comprises a cooling section.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the computer is caused to perform the method according to claim 1 or 2.

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