Roller furnace cooling temperature adjusting method, electronic equipment and readable storage medium

Abstract

The invention relates to the field of industrial kilns, in particular to a roller bed furnace cooling temperature adjusting method, electronic equipment and a readable storage medium, and the method comprises the following steps: S1, building a roller bed furnace cooling temperature adjusting system, and obtaining historical working condition parameters of materials conveyed by a roller bed furnace; s2, constructing a material cooling temperature prediction model according to the historical working condition parameters of the material; s3, inputting the real-time working condition parameters of the material into the material cooling temperature prediction model to predict the cooling discharge temperature; and S4, according to the prediction result in the step S3, the working frequency of a cooling water supply pump and / or the working frequency of a circulating fan are / is adjusted, and the cooling discharging temperature is adjusted to a target value. Prediction of the discharging temperature of the materials in the roller bed furnace is achieved, so that the temperature in the roller bed furnace is adjusted in advance, and the adjusting efficiency of the cooling temperature of the roller bed furnace is improved.

Description

Technical Field

[0001] The invention relates to the field of industrial kilns, and in particular to a roller furnace cooling temperature regulating method, electronic equipment and a readable storage medium. Background Art

[0002] Roller furnace is an important part of the sintering production process of lithium battery materials. Its cooling efficiency and reliability directly affect the economic efficiency of lithium battery material production. However, the cooling discharge temperature under different working conditions will be different. Low cooling efficiency will directly lead to longer production time; high discharge temperature will reduce the durability of the back-end production line equipment or even damage it.

[0003] Therefore, in order to improve the production economy, the temperature of the discharged material under different working conditions needs to be adjusted to near the target value. For temperature control, the main means is to arrange a large number of thermocouples and thermal parameter detection instruments in the cooling section of the roller furnace; as described in the publication number "CN109945650A", the roller furnace has a main heating unit, which uses a heating rod as a heating element and is located above and below the roller inside the furnace cavity; it also has an auxiliary heating unit, which uses an electric heating wire as a heating element and is located on the inner wall of the furnace cavity between the upper and lower heating areas of the main heating unit, for regulating the temperature of the local area; and a temperature adaptive control unit, which uses a temperature sensor as a temperature data acquisition element and uses a closed-loop feedback method to regulate the heating power of the main heating unit and the auxiliary heating unit.

[0004] The existing solution is to use temperature sensors to detect the real-time temperature, and to increase or decrease the power of the heating unit according to the real-time temperature, so that the discharge temperature of the roller furnace is close to the target temperature. However, in the solution of real-time temperature monitoring by temperature sensors, the power of the heating unit or the power of the cooling system is often adjusted when the material is close to the roller furnace outlet. This temperature regulation method has hysteresis and low regulation efficiency, so it needs to be solved urgently. Summary of the invention

[0005] In order to avoid and overcome the technical problems existing in the prior art, the present invention provides a roller hearth furnace cooling temperature adjustment method, electronic equipment and readable storage medium. The present invention predicts the discharge temperature of the material in the roller hearth furnace, thereby adjusting the temperature in the roller hearth furnace in advance, and improving the adjustment efficiency of the roller hearth furnace cooling temperature.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A roller furnace cooling temperature adjustment method comprises the following steps:

[0008] S1. Build a roller furnace cooling temperature control system and obtain historical operating parameters of the roller furnace conveying materials;

[0009] S2. Construct a material cooling temperature prediction model based on the historical operating parameters of the material;

[0010] S3, inputting the real-time working condition parameters of the material into the material cooling temperature prediction model to predict the cooling discharge temperature;

[0011] S4. According to the prediction result in step S3, the operating frequency of the cooling water supply pump and / or the operating frequency of the circulating fan is adjusted to adjust the cooling discharge temperature to the target value.

[0012] As a further solution of the present invention: in step S2, the predicted temperature T of the material cooling temperature prediction model is:

[0013] T=763.2-3.65X a -3.13X b -5.2X c -7.3X d -0.012X a X b -0.0016X a X c -

[0014] 0.012X a X d -0.029X b X c -0.084X b X d -0.0017X c X d -0.00012X a 2 -0.00017X b 2 -0.0063X c 2 -0.0084X d 2 ;

[0015] X a The air volume of the circulating fan: X a =86258KA[△P(273+T i / (101325+P o ))];

[0016] X b Circulating cooling water flow rate: X b =75.8+0.03T q +12.7P+2E-2.3;

[0017] X c Heat exchange for cooling water inlet and outlet: X c=C1ρ1X b (T out-w -T in-w );

[0018] X d The heat exchange rate of the heat exchanger inlet and outlet; X d =C2ρ2X a (T in-n -T out-n );

[0019] Where K represents the flow coefficient;

[0020] A represents the flow rate of the circulation fan;

[0021] △P represents the inlet and outlet pressure difference of the circulation fan;

[0022] T i Indicates the temperature of the gas passing through the circulation fan;

[0023] P o Indicates the pressure inside the circulation fan pipe;

[0024] T q Indicates the water temperature in the cooling water supply pump;

[0025] P represents the water inlet pressure of the cooling water supply pump inlet;

[0026] E represents the pump efficiency of the cooling water supply pump;

[0027] C1 represents the specific heat capacity of water;

[0028] C2 represents the specific heat capacity of air;

[0029] ρ1 represents the water density;

[0030] ρ2 represents the air density;

[0031] T out-w Indicates the cooling water outlet temperature of the roller furnace cooling section;

[0032] T in-w Indicates the cooling water inlet temperature of the roller furnace cooling section;

[0033] T in-n Indicates the inlet air temperature of the heat exchanger;

[0034] T out-n Indicates the exhaust temperature of the heat exchanger.

[0035] As a further solution of the present invention: in step S4, a multi-objective robustness optimization model is established using the Six Sigma standard to calculate and adjust the operating frequency of the cooling water supply pump. And the operating frequency of the circulation fan

[0036]

[0037] Among them, Q out It indicates the minimum work required to adjust the material from the predicted temperature T to the target temperature;

[0038] Q min It indicates the minimum energy consumption for adjusting the material from the predicted temperature T to the target temperature;

[0039] μ(Q out ) indicates Q out The mean of

[0040] σ(Q out ) indicates Q out The standard deviation of

[0041] μ(Q min ) indicates Q min The mean of

[0042] σ(Q min ) indicates Q min The standard deviation of

[0043] ω1 represents the weight coefficient of the mean of minimum work demand;

[0044] ω2 represents the weight coefficient of the standard deviation of the minimum work requirement;

[0045] ω3 represents the weight coefficient of the minimum energy consumption mean;

[0046] ω4 represents the weight coefficient of the minimum energy consumption standard deviation;

[0047] Indicates the operating frequency of the cooling water supply pump;

[0048] express The mean of

[0049] Indicates the operating frequency of the circulation fan;

[0050] express The mean of .

[0051] As a further solution of the present invention: the roller furnace cooling temperature adjustment system includes a hot air extraction duct and a cold air exhaust duct parallel to each other horizontally arranged in the cooling section of the roller furnace, and the pipe bodies of the hot air extraction duct and the cold air exhaust duct are respectively arranged on the upper and lower layers of the sagger conveyor belt; the hot air extracted from the hot air extraction duct is cooled by heat exchange in the heat exchanger and then transported to the cold air inlet of the cold air exhaust duct through the circulating fan to form a circulation.

[0052] As a further solution of the present invention: the exhaust cold air duct is arranged along the width direction of the roller furnace cooling section, guide plates are arranged obliquely on both sides of the inner wall of the roller furnace cooling section, and the outlet air of the exhaust cold air duct flows from bottom to top along the guide plate surface toward the sagger conveyor belt.

[0053] As a further solution of the present invention: exhaust outlets are arranged at intervals along the length of the exhaust cold air duct, at least two groups of shunt pipes are arranged on each exhaust outlet, and the outlet directions of the shunt pipes on the exhaust outlets are staggered.

[0054] As a further solution of the present invention: air inlets are evenly opened on the pipe body of the hot air extraction pipeline. After the air in the cooling section of the roller furnace enters the hot air extraction pipeline from the air inlet, it flows along the confluence pipe to the heat exchanger for heat exchange and cooling; the hot air extraction pipeline and the cold air exhaust pipeline are respectively provided with a hot air regulating valve and a cold air regulating valve to adjust the flow rate.

[0055] As a further solution of the present invention: finned water cooling pipes are further arranged along the length direction in the roller hearth furnace cooling section, and a cooling water supply pump outside the roller hearth furnace cooling section circulates water to the finned water cooling pipes in the roller hearth furnace cooling section.

[0056] An electronic device comprises a processor, an input device, an output device and a memory, wherein the processor, the input device, the output device and the memory are connected in sequence, the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the roller furnace cooling temperature adjustment method.

[0057] A readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the roller furnace cooling temperature adjustment method.

[0058] Compared with the prior art, the present invention has the following beneficial effects:

[0059] 1. The present invention builds a material cooling temperature prediction model. After inputting the real-time working conditions of the material in the roller furnace, the material discharge temperature can be predicted, so as to adjust the operating parameters of the equipment in the roller furnace in advance, so that the material discharge temperature can be close to the target value, and the temperature can be accurately predicted, which greatly improves the work efficiency and reduces the labor cost.

[0060] 2. The present invention can obtain the optimal operating frequency of the water pump and the circulating fan in the temperature control system through calculation, so as to minimize the power consumption of the system and obtain the optimal solution for the operation of the cooling control system.

[0061] 3. The cooling temperature regulation system of the present invention combines air cooling and water cooling, and removes heat by introducing circulating water; the high-temperature gas is extracted by the circulating fan at the front end of the heat exchanger, and heat exchange and cooling are carried out through an external heat exchanger. The cooled gas is returned to the cooling section through the exhaust air pipeline, which greatly improves the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic diagram of the structure of the present invention.

[0063] Figure 2 It is a schematic diagram of the structure of the hot air extraction pipeline in the present invention.

[0064] Figure 3 It is a schematic diagram of the structure of the cold air exhaust pipeline in the present invention.

[0065] Figure 4 It is a comparison chart of the predicted temperature and the measured temperature under the set working condition of the present invention.

[0066] In the figure:

[0067] 1. Roller furnace cooling section; 11. Sagger conveyor belt; 12. Guide plate;

[0068] 2. Hot air extraction pipeline; 21. Air inlet; 22. Converging pipe;

[0069] 3. Hot air regulating valve; 4. Heat exchanger; 5. Circulating fan;

[0070] 6. Cold air exhaust pipeline; 61. Diverter pipe; 62. Cold air inlet;

[0071] 7. Cold air regulating valve; 8. Cooling water supply pump. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0073] See also Figures 1 to 3 In an embodiment of the present invention, a roller furnace cooling temperature adjustment method is provided. A sagger conveyor belt 11 is arranged along the length direction in a roller furnace cooling section 1 of a roller furnace cooling temperature adjustment system. A hot air extraction pipeline 2 is arranged on the upper layer of the sagger conveyor belt 11, and a cold air exhaust pipeline 6 is arranged on the lower layer of the sagger conveyor section 11.

[0074] The hot air extraction pipeline 2 is arranged along the width direction of the roller furnace cooling section 1, and the pipe body thereof is evenly provided with air inlets 21. The hot air exhaust pipeline 2 is connected to the heat exchanger 4 through the return pipe 22, and a circulating fan 5 is arranged at the downstream end of the heat exchanger 4. After the circulating fan 5 is started, the air in the roller furnace cooling section 1 is sucked through the hot air exhaust pipeline 2, and is transported to the heat exchanger 4 for heat exchange and cooling, and then transported to the cold air inlet 62 of the cold air exhaust pipeline 6, forming an air circulation to take away the heat in the roller furnace cooling section 1.

[0075] The exhaust cold air duct 6 is also arranged along the width direction of the roller furnace cooling section 1. Guide plates 12 are arranged obliquely from bottom to top on both sides of the inner wall of the roller furnace cooling section 1. The air outlet of the exhaust cold air duct 6 flows from bottom to top along the guide plate 12 surface, passes through the sagger conveyor belt 11 to cool the material, and is then sucked into the hot air extraction duct 2. Exhaust ports are arranged at intervals along the length direction of the pipe on the exhaust cold air duct 6, and at least two groups of shunt pipes 61 are arranged on each exhaust port, and the outlet directions of the shunt pipes 61 on the exhaust ports are staggered.

[0076] A hot air regulating valve 3 is provided on the hot air extraction pipeline 2, and a cold air regulating valve 6 is provided on the cold air exhaust pipeline 6, and the flow rate is adjusted by the two regulating valves.

[0077] The inner wall of the roller furnace cooling section 1 is also provided with finned water cooling pipes along the material conveying direction. The cold air water supply pump 8 supplies water to the finned water cooling pipes, and the water supply circulates. A heat exchange mechanism can be provided outside the roller furnace cooling section 1 to exchange heat and cool the cooling water.

[0078] The roller hearth furnace cooling temperature control system adjusts the roller hearth furnace cooling temperature through the following steps:

[0079] S1. Obtain historical operating parameters of the roller furnace conveying materials;

[0080] The historical operating parameters include the material loading amount, material density, the maximum material discharge temperature, the minimum material discharge temperature, the average material discharge temperature, the cooling water flow, the inlet cooling water temperature, the outlet cooling water temperature, the heat exchanger 4 inlet temperature, the heat exchanger 4 outlet temperature, the average ambient temperature, and the circulating fan inlet air volume, etc.

[0081] S2. Select historical parameters that affect the material's heat absorption and release rate, and build a material cooling temperature prediction model using the PSO-SVM algorithm;

[0082] The material cooling temperature prediction model includes material basic sub-model, wind quantum model, cooling water flow sub-model and heat exchange energy consumption sub-model;

[0083] The material characteristic coefficient set S, S is constructed by taking the material filling amount W and density ρ as the characteristic values. i =(W i ,ρ j), and build the material-based sub-model through the regression model.

[0084] The operating frequency of the circulating fan The wind volume model is constructed by regression model to characterize the characteristic value; within the predetermined process cycle time, the circulating fan air volume X is predicted. a .

[0085] Cooling water pump frequency The cooling water flow sub-model is constructed by regression model to characterize the characteristic value; within the predetermined process cycle time, the circulating cooling water flow X is predicted. b .

[0086] Combining the wind quantum model and cooling water flow quantum model with historical parameters, the cooling water inlet and outlet heat exchange X can be predicted within the predetermined process cycle time. c ; Heat exchanger inlet and outlet heat transfer capacity X d .

[0087] X c =C1ρ1X b (T out-w -T in-w );

[0088] X d =C2ρ2X a (T in-n -T out-n );

[0089] Where K represents the flow coefficient;

[0090] A represents the flow rate of the circulation fan 5;

[0091] △P represents the inlet and outlet pressure difference of the circulation fan 5;

[0092] T i Indicates the temperature of the gas passing through the circulation fan 5;

[0093] P o Indicates the pressure in the pipe of the circulation fan 5;

[0094] T q Indicates the water temperature in the cooling water supply pump;

[0095] P represents the water inlet pressure of the cooling water supply pump inlet 8;

[0096] E represents the pump efficiency of the cooling water supply pump;

[0097] C1 represents the specific heat capacity of water;

[0098] C2 represents the specific heat capacity of air;

[0099] ρ1 represents the water density;

[0100] ρ2 represents the air density;

[0101] T out-w Indicates the cooling water outlet temperature of roller furnace cooling section 1;

[0102] T in-w Indicates the cooling water inlet temperature of roller furnace cooling section 1;

[0103] T in-n represents the inlet air temperature of the heat exchanger 4;

[0104] T out-n Indicates the exhaust gas temperature of heat exchanger 4;

[0105] X a , X b , X c and X d The regression equation is established and the predicted temperature T is obtained as:

[0106] T=763.2-3.65X a -3.13X b -5.2X c -7.3X d -0.012X a X b -0.0016X a X c -

[0107] 0.012X a X d -0.029X b X c -0.084X b X d -0.0017X c X d -0.00012X a 2 -0.00017X b 2 -0.0063X c 2 -0.0084X d 2 .

[0108] X a , X b , X c and X d The function equation is based on the sample points through the determination coefficient R 2 Perform error judgment correction, determination coefficient R 2 The closer it is to 1, the more accurate the model's function is.

[0109]

[0110] Among them, SSR is the regression sum of squares;

[0111] SST is the total sum of squares;

[0112] n is the number of samples randomly selected;

[0113] y i is the observation value of the i-th sample point;

[0114] is the fitting value of the i-th sample point;

[0115] is the mean of the observed values ​​of the i-th sample point;

[0116] S3, inputting the real-time working condition parameters of the material into the material cooling temperature prediction model to predict the cooling discharge temperature;

[0117] S4. According to the prediction result in step S3, the operating frequency of the cooling water supply pump 8 and / or the operating frequency of the circulating fan 5 is adjusted to adjust the cooling discharge temperature to the target value.

[0118] Before adjusting the discharge temperature, the optimization objectives are to minimize the difference between the predicted cooling discharge temperature and the target discharge temperature under different working conditions and to minimize the energy consumption of the cooling control system. A multi-objective robust optimization model is established using the Six Sigma standard. The difference range of ±0.5 to 1°C between the predicted discharge temperature and the target discharge temperature is used as the standard to obtain the optimal solution for the operation of the cooling control system under different working conditions.

[0119] The multi-objective robustness optimization model is:

[0120]

[0121] Among them, Q out It indicates the minimum work required to adjust the material from the predicted temperature T to the target temperature;

[0122] Q min It indicates the minimum energy consumption for adjusting the material from the predicted temperature T to the target temperature;

[0123] μ(Q out ) indicates Q out The mean of

[0124] σ(Q out ) indicates Q out The standard deviation of

[0125] μ(Q min ) indicates Q minThe mean of

[0126] σ(Q min ) indicates Q min The standard deviation of

[0127] ω1 represents the weight coefficient of the mean of minimum work demand;

[0128] ω2 represents the standard deviation of the minimum work requirement;

[0129] ω3 represents the weight coefficient of the minimum energy consumption mean;

[0130] ω4 represents the weight coefficient of the minimum energy consumption mean;

[0131] Indicates the operating frequency of the cooling water supply pump 8;

[0132] Indicates the mean value of the operating frequency of the cooling water supply pump 8;

[0133] Indicates the operating frequency of the circulation fan 5;

[0134] represents the mean value of the operating frequency of the circulation fan 5;

[0135] The optimal operating frequency of the cooling water supply pump and the circulating fan is calculated through a multi-objective robust optimization model, and the current operating parameters of the cooling temperature control system are adjusted.

[0136] When the predicted cooling material temperature is greater than the target cooling temperature, the frequency of the circulating fan is adjusted to increase the heat exchange rate per unit time of the heat exchanger. At the same time, the frequency of the cooling water supply pump is increased and the flow rate at the cooling water supply pump inlet is increased to achieve the goal of predicted temperature ≤ target cooling temperature.

[0137] After predicting that the cooling material temperature is ≤ the target cooling temperature, on the basis of maintaining the judgment condition, through multi-objective robust optimization, negative feedback control adjusts the operating frequency of the cooling water supply pump and the circulating fan, so that the material can reach the target cooling temperature requirement while meeting the goals of minimum work demand and minimum energy consumption under this working condition.

[0138] like Figure 4 As shown, multiple different working conditions are set, and each data point represents a different working condition. It can be seen that under different working conditions, the temperature value predicted by this application is relatively consistent with the temperature value of the actual working condition, and the predicted temperature is accurate.

[0139] Another embodiment of the present application is an electronic device.

[0140] The electronic device may be the mobile device itself, or a stand-alone device independent of the mobile device, which may communicate with the mobile device to receive the collected input signals from the mobile device and send the selected target decision behavior to the mobile device.

[0141] An electronic device includes one or more processors and memory.

[0142] The processor may be a central processing unit (CPU) or other forms of processing units having data processing capabilities and / or instruction execution capabilities, and may control other components in the electronic device to perform desired functions.

[0143] The memory may include one or more computer program products, and the computer program product may include various forms of computer-readable storage media, such as volatile memory and / or non-volatile memory. The volatile memory may include, for example, random access memory (RAM) and / or cache memory (cache), etc. The non-volatile memory may include, for example, read-only memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium, and the processor may run the program instructions to implement a valve limit performance test method of each embodiment of the present application described above.

[0144] In one example, the electronic device may further include: an input device and an output device, and these components are interconnected through a bus system and / or other forms of connection mechanisms. For example, the input device may include various devices such as an on-board diagnostic system (OBD), a camera, an industrial camera, etc. The input device may also include, for example, a keyboard, a mouse, etc. The output device may include, for example, a display, a speaker, a printer, and a communication network and a remote output device connected thereto, etc.

[0145] In addition, the electronic device may further include any other appropriate components according to specific application scenarios.

[0146] Another embodiment of the present application may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to execute the calculation steps according to various embodiments of the present application described in the above-mentioned valve limit performance test method in this specification.

[0147] The computer program product may be written in any combination of one or more programming languages ​​to write program codes for performing the operations of the embodiments of the present application, including object-oriented programming languages, such as Java, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as an independent software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0148] In addition, an embodiment of the present application may also be a computer-readable storage medium on which computer program instructions are stored. When the computer program instructions are executed by a processor, the processor executes a valve limit performance test method in this specification.

[0149] The computer readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can include, for example, but is not limited to, a system, device or device of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination of the above. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0150] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0151] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

Claims

1. A roller furnace cooling temperature adjustment method, characterized in that: The steps include: S1. Build a roller furnace cooling temperature control system and obtain historical operating parameters of the roller furnace conveying materials; S2. Construct a material cooling temperature prediction model based on the historical operating parameters of the material; S3, inputting the real-time working condition parameters of the material into the material cooling temperature prediction model to predict the cooling discharge temperature; S4. According to the prediction result in step S3, the operating frequency of the cooling water supply pump (8) and / or the operating frequency of the circulating fan (5) is adjusted to adjust the cooling discharge temperature to the target value.

2. A roller hearth furnace cooling temperature adjustment method, electronic device and readable storage medium according to claim 1, characterized in that: In step S2, the predicted temperature T of the material cooling temperature prediction model is: T=763.2-3.65X a -3.13X b -5.2X c -7.3X d -0.012X a X b -0.0016X a X c - 0.012X a X d -0.029X b X c -0.084X b X d -0.0017X c X d -0.00012X a 2 -0.00017X b 2 -0.0063X c 2 -0.0084X d 2 ; X a The air volume of the circulating fan: X a =86258KA[△P(273+T i / (101325+P o ))]; X b Circulating cooling water flow rate: X b =75.8+0.03T q +12.7P+2E-2.3; X c Heat exchange for cooling water inlet and outlet: X c =C1ρ1X b (T out-w -T in-w ); X d The heat exchange rate of the heat exchanger inlet and outlet; X d =C2ρ2X a (T in-n -T out-n ); Where K represents the flow coefficient; A represents the flow rate of the circulation fan (5); △P represents the inlet and outlet pressure difference of the circulation fan (5); T i represents the temperature of the gas passing through the circulation fan (5); P o Indicates the pressure in the pipe of the circulation fan (5); T q Indicates the water temperature in the cooling water supply pump; P represents the water inlet pressure of the cooling water supply pump inlet (8); E represents the pump efficiency of the cooling water supply pump; C1 represents the specific heat capacity of water; C2 represents the specific heat capacity of air; ρ1 represents the water density; ρ2 represents the air density; T out-w Indicates the cooling water outlet temperature of the roller furnace cooling section (1); T in-w represents the cooling water inlet temperature of the roller furnace cooling section (1); T in-n represents the inlet air temperature of the heat exchanger (4); T out-n Indicates the exhaust gas temperature of the heat exchanger (4).

3. A roller furnace cooling temperature adjustment method according to claim 1, characterized in that: In step S4, a multi-objective robustness optimization model is established using the Six Sigma standard to calculate and adjust the operating frequency of the cooling water supply pump (8). and the operating frequency of the circulation fan (5) Among them, Q out It indicates the minimum work required to adjust the material from the predicted temperature T to the target temperature; Q min It indicates the minimum energy consumption for adjusting the material from the predicted temperature T to the target temperature; μ(Q out ) indicates Q out The mean of σ(Q out ) indicates Q out The standard deviation of μ(Q min ) indicates Q min The mean of σ(Q min ) indicates Q min The standard deviation of ω1 represents the weight coefficient of the mean of minimum work demand; ω2 represents the weight coefficient of the standard deviation of the minimum work requirement; ω3 represents the weight coefficient of the minimum energy consumption mean; ω4 represents the weight coefficient of the minimum energy consumption standard deviation; Indicates the operating frequency of the cooling water supply pump (8); express The mean of represents the operating frequency of the circulation fan (5); express The mean of .

4. A roller furnace cooling temperature adjustment method according to any one of claims 1 to 3, characterized in that: The roller furnace cooling temperature regulation system comprises a hot air extraction pipeline (2) and a cold air exhaust pipeline (6) which are horizontally arranged in parallel with each other in a roller furnace cooling section (1); the pipe bodies of the hot air extraction pipeline (2) and the cold air exhaust pipeline (6) are arranged at the upper layer and the lower layer of a sagger conveyor belt (11) respectively; the hot air extracted from the hot air extraction pipeline (2) is cooled by heat exchange in a heat exchanger (4) and then transported to the cold air inlet (62) of the cold air exhaust pipeline (6) through a circulating fan (5) to form a circulation.

5. A roller furnace cooling temperature adjustment method according to claim 4, characterized in that: The cold air exhaust duct (6) is arranged along the width direction of the roller furnace cooling section (1), and guide plates (12) are arranged obliquely on both sides of the inner wall of the roller furnace cooling section (1). The air outlet of the cold air exhaust duct (6) flows from bottom to top along the plate surface of the guide plate (12) toward the sagger conveyor belt (11).

6. A roller furnace cooling temperature adjustment method according to claim 5, characterized in that: Exhaust ports are arranged at intervals along the length of the exhaust cold air pipeline (6), and at least two groups of shunt pipes (61) are arranged on each exhaust port, and the outlet directions of the shunt pipes (61) on the exhaust port are staggered.

7. A roller furnace cooling temperature adjustment method according to claim 4, characterized in that: Air inlets (21) are evenly arranged on the pipe body of the hot air extraction pipeline (2). After the air in the roller furnace cooling section (1) enters the hot air extraction pipeline (2) from the air inlet (21), it flows along the confluence pipe (22) to the heat exchanger (4) for heat exchange and cooling. The hot air extraction pipeline (2) and the cold air exhaust pipeline (6) are respectively provided with a hot air regulating valve (3) and a cold air regulating valve (7) to adjust the flow rate.

8. A roller furnace cooling temperature adjustment method according to claim 4, characterized in that: Finned water cooling pipes are also arranged in the roller furnace cooling section (1) along the length direction, and a cooling water supply pump (8) outside the roller furnace cooling section (1) circulates water to the finned water cooling pipes in the roller furnace cooling section (1).

9. An electronic device, characterized in that: The invention comprises a processor, an input device, an output device and a memory, wherein the processor, the input device, the output device and the memory are connected in sequence, the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute a roller furnace cooling temperature adjustment method as described in any one of claims 1 to 3.

10. A readable storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes a roller furnace cooling temperature adjustment method as claimed in any one of claims 1 to 3.

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