On-line equipment double-control heating system
By using a dual-circuit control system and dynamic temperature difference monitoring, the problem of thermal imbalance between molten aluminum and the atmosphere is solved, improving the heating efficiency and product quality of molten aluminum processing, and ensuring the continuity and safety of production.
Patent Information
- Application Number
- CN202511572607.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-01-20
AI Technical Summary
In existing online aluminum liquid processing, the single temperature control mode leads to an imbalance in the thermal balance between the aluminum liquid and the atmosphere, resulting in excessive temperature difference, which affects the degassing and filtration process and threatens product quality.
The system employs a dual-control heating system, which includes a central processing module, a temperature monitoring module, a power execution module, and a status monitoring and fault-tolerant control module. Through dual-loop control and power arbitration, it dynamically monitors and suppresses temperature differences, prioritizes heating needs, and achieves dynamic energy distribution and adaptive adjustment of the system.
It improves heating efficiency and overall energy efficiency, prevents aluminum liquid from condensing or local overheating, ensures degassing and filtration effects, improves production continuity and equipment safety, and enhances the system's intelligence level and operating efficiency.
Smart Images
Figure CN121364754A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of online treatment of molten aluminum, and in particular to a double-control heating system for online equipment. BACKGROUND
[0002] In the field of online treatment of molten aluminum, the existing technology generally adopts a single temperature control mode, that is, only the temperature of the molten aluminum is monitored and adjusted, while the key influence of the atmosphere temperature in the box is seriously ignored. This simplified control mode is difficult to maintain the heat balance between the molten aluminum and the atmosphere, and is prone to cause a large temperature difference between the two, when the atmosphere temperature is too low, the heat loss of the molten aluminum is too fast, which causes local condensation, and further increases the viscosity of the molten aluminum, and finally seriously deteriorates the key degassing and filtering process effect, and directly threatens the product quality of the final aluminum material. SUMMARY
[0003] In order to solve the above problems, the present application provides a double-control heating system for online equipment.
[0004] The double-control heating system for online equipment provided by the present application adopts the following technical scheme: A double-control heating system for online equipment, comprising: A central processing module, which is integrated with a double-target setting unit, a double-loop control unit, a power arbitration module and a dynamic temperature difference monitoring unit; A temperature monitoring module, which is in communication connection with the central processing module, and comprises an atmosphere detection unit and a molten aluminum detection unit; A power execution module, which is in communication connection with the central processing module; A state monitoring and fault-tolerant control module, which is in communication connection with the central processing module.
[0005] As a preferred technical scheme of the present application, the double-target setting unit is used for independently setting the atmosphere target temperature and the molten aluminum target temperature respectively and outputting the corresponding target temperature signals, the double-target setting unit is in communication connection with the double-loop control unit, the double-loop control unit has an atmosphere temperature control loop and a molten aluminum temperature control loop, the atmosphere temperature control loop outputs an atmosphere demand power signal according to the deviation between the atmosphere target temperature signal and the actual atmosphere temperature signal from the atmosphere detection unit, and the molten aluminum temperature control loop outputs a molten aluminum demand power signal according to the deviation between the molten aluminum target temperature signal and the actual molten aluminum temperature signal from the molten aluminum detection unit; The double-loop control unit is in communication connection with the power arbitration module, the power arbitration module is used for receiving the atmosphere demand power signal and the liquid aluminum demand power signal and comparing the power values of the two signals in real time, and selecting the larger one as the basic power instruction, the dynamic temperature difference monitoring unit is in communication connection with the double-loop control unit, and the dynamic temperature difference monitoring unit is used for calculating the absolute value of the temperature difference between the actual atmosphere temperature and the actual liquid aluminum temperature in real time and comparing the absolute value of the temperature difference with a preset temperature difference threshold.
[0006] As a preferred technical solution of the present application, the power arbitration module is internally integrated with a temperature difference suppression strategy, and the power arbitration module is configured to: When the absolute value of the temperature difference is less than or equal to the temperature difference threshold, the basic power instruction is directly output as the final power instruction signal; When the absolute value of the temperature difference is greater than the temperature difference threshold, the temperature difference suppression strategy is started to preferentially improve the heating demand of the lower temperature side, and the basic power instruction is corrected and output as the final power instruction signal.
[0007] As a preferred technical solution of the present application, the output end of the power arbitration module is in communication connection with a power execution module, the power execution module includes a power driver and a heating unit, the power driver adjusts the heating power of the heating unit according to the final power instruction signal, and the temperature difference suppression strategy is configured to: Identify the lower one of the current actual atmosphere temperature and the actual liquid aluminum temperature, and calculate the current temperature difference between the lower temperature and the corresponding target temperature; Generate a power compensation value based on the current temperature difference; Superimpose the power compensation value and the basic power instruction to generate a corrected final power instruction signal.
[0008] As a preferred technical solution of the present application, the output end of the central processing module is also in communication connection with a multi-mode operation management module, the multi-mode operation management module is used for switching between a plurality of predefined working modes, and the working modes include: Preheating mode, in which the double-target setting unit sets the atmosphere target temperature to be higher than the liquid aluminum target temperature; Cooperative operation mode, in which the atmosphere target temperature and the liquid aluminum target temperature are set to similar values required by the process; Energy-saving insulation mode, in which the atmosphere target temperature and the liquid aluminum target temperature are both set to an insulation value lower than the normal working temperature.
[0009] As a preferred technical solution of the present application, the state monitoring and fault-tolerant control module comprises a sensor diagnosis unit and a fault-tolerant logic unit, the sensor diagnosis unit is used to monitor whether the output signals of the atmosphere detection unit and the molten aluminum detection unit are in the effective range, and the fault-tolerant logic unit is configured to: When the molten aluminum detection unit is diagnosed as a fault, the system is automatically switched to an atmosphere temperature dominant mode, the molten aluminum demand power signal is ignored, and the atmosphere demand power signal is directly output as the final power instruction signal of the power arbitration module, while an alarm is triggered; When the atmosphere detection unit is diagnosed as a fault, the system is automatically switched to a molten aluminum temperature dominant mode, the atmosphere demand power signal is ignored, and the molten aluminum demand power signal is directly output as the final power instruction signal.
[0010] As a preferred technical solution of the present application, the output end of the central processing module is further communicatively connected with a process linkage and energy efficiency optimization module, the process linkage and energy efficiency optimization module is used for data interaction with an upstream degassing device and a downstream filtering device of a molten aluminum processing production line, and the process linkage and energy efficiency optimization module is used for receiving a molten aluminum flow signal from the upstream degassing device and a blockage early warning signal from the downstream filtering device; The process linkage and energy efficiency optimization module outputs a dynamic adjustment instruction to the dual-target setting unit according to the molten aluminum flow signal and the blockage early warning signal to adjust the set values of the atmosphere target temperature signal and the molten aluminum target temperature signal.
[0011] As a preferred technical solution of the present application, the dynamic adjustment instruction comprises a flow compensation instruction and a viscosity adjustment instruction, the flow compensation instruction is configured to generate an instruction to increase the set value of the molten aluminum target temperature signal when the molten aluminum flow signal shows that the flow rate increases by more than a preset threshold, for compensating for the heat loss of the molten aluminum due to the accelerated flow rate, and the viscosity adjustment instruction is configured to generate a temporary instruction to increase the set value of the molten aluminum target temperature signal by a predetermined offset within a preset time period when the blockage early warning signal is received, so as to reduce the viscosity of the molten aluminum by increasing the temperature.
[0012] In summary, the present application has at least one of the following beneficial technical effects of an online device double-control heating system: The application adopts double-loop control combined with the principle of taking the maximum value of power arbitration, can quickly respond to temperature changes, optimizes energy distribution from a global perspective, preferentially meets the most urgent heating demand, improves the heating efficiency and overall energy efficiency, and the dynamic temperature difference monitoring and suppression strategy can actively intervene and forcibly reduce the excessive temperature difference between the aluminum liquid and the atmosphere, effectively preventing process risks such as aluminum liquid condensation or local overheating, and fundamentally guaranteeing the product quality and equipment safety of degassing and filtration effect, The system has high reliability, and the state monitoring and fault-tolerant control module can automatically switch to single-loop dominant mode and alarm when a single temperature sensor fails, reducing the impact from full-line shutdown to performance degradation operation, significantly improving production continuity, Through the process linkage and energy efficiency optimization module, the system can interact with upstream degassing and downstream filtration devices, realize forward-looking and adaptive temperature setting adjustment based on aluminum liquid flow and blockage warning, which not only stabilizes the process conditions, but also improves the intelligent level and operation efficiency of the entire production system, avoiding unplanned shutdown. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is the overall system architecture diagram of the application. DETAILED DESCRIPTION
[0014] The following will be described in detail in combination with the drawings Figure 1 The application will be further described in detail.
[0015] Referring to Figure 1 An online equipment double-control heating system comprises: A central processing module, which is integrated with a double-target setting unit, a double-loop control unit, a power arbitration module and a dynamic temperature difference monitoring unit; A temperature monitoring module, which is in communication connection with the central processing module, and comprises an atmosphere detection unit and an aluminum liquid detection unit; A power execution module, which is in communication connection with the central processing module; A state monitoring and fault-tolerant control module, which is in communication connection with the central processing module.
[0016] The double-target setting unit is used for independently setting the atmosphere target temperature and the molten aluminum target temperature respectively and outputting corresponding target temperature signals, the double-target setting unit is in communication connection with the double-loop control unit, the double-loop control unit has an atmosphere temperature control loop and a molten aluminum temperature control loop, the atmosphere temperature control loop outputs an atmosphere demand power signal according to the deviation between the atmosphere target temperature signal and an actual atmosphere temperature signal from the atmosphere detection unit, the molten aluminum temperature control loop outputs a molten aluminum demand power signal according to the deviation between the molten aluminum target temperature signal and an actual molten aluminum temperature signal from the molten aluminum detection unit; the double-loop control unit is in communication connection with the power arbitration module, the power arbitration module is used for receiving the atmosphere demand power signal and the molten aluminum demand power signal and comparing the power values of the two signals in real time, selecting the larger one as a basic power instruction, the dynamic temperature difference monitoring unit is in communication connection with the double-loop control unit, and the dynamic temperature difference monitoring unit is used for calculating the absolute value of the temperature difference between the actual atmosphere temperature and the actual molten aluminum temperature in real time and comparing the absolute value with a preset temperature difference threshold value. The preset temperature difference threshold value in the dynamic temperature difference monitoring unit, the value range of which is usually set to 20-50℃, and the specific value is determined according to the composition of the molten aluminum and the process requirements, for example, for most aluminum alloy applications, the threshold value is preferably set to 30℃, and the setting logic of this threshold value is that if the temperature difference is too small, the temperature difference suppression strategy may be frequently triggered by mistake due to normal thermal inertia fluctuation, affecting the stability of the system, and if the temperature difference is too large, the effect of preventing the condensation or local overheating of the molten aluminum cannot be achieved, and the threshold value can be adjusted by the operator according to the actual process on the man-machine interface of the system.
[0017] The central processing module integrates a double-loop control unit, a power arbitration module and a dynamic temperature difference monitoring unit. The atmosphere temperature control loop and the aluminum liquid temperature control loop in the double-loop control unit independently operate, and according to the deviation of the set value and the actual value, the required atmosphere demand power signal and the aluminum liquid demand power signal are calculated. At this time, the power arbitration module adopts the principle of taking the maximum value, compares the two power values in real time, and selects the larger one as the basic power instruction. This design starts from the global system energy demand, always prioritizes the instantaneous demand of the object with a larger temperature difference and a more urgent heating demand, thereby ensuring the rapid response of the system and avoiding the heating lag caused by insufficient power distribution. To further improve the intelligence and safety of the system, the dynamic temperature difference monitoring unit works in parallel. It calculates the absolute value of the temperature difference between the actual atmosphere temperature and the actual aluminum liquid temperature in real time, and compares it with a preset temperature difference safety threshold. When the temperature difference is within the threshold, the system uses the basic power instruction output by the above-mentioned maximum value principle. Once the temperature difference exceeds the threshold, it means that the two-phase heat balance is broken, and there may be a risk of aluminum liquid condensation or local overheating. At this time, the power arbitration module will start the temperature difference suppression strategy. The strategy will identify the party with the lower current temperature and generate an additional power compensation value based on the current deviation of the target temperature. The compensation value is added to the basic power instruction to form the final power instruction. This dynamic strategy ensures that the system can actively and forcibly reduce the temperature difference under abnormal conditions and return to a safe, efficient and balanced heat state.
[0018] The power arbitration module is internally integrated with a temperature difference suppression strategy. The power arbitration module is configured to: when the absolute value of the temperature difference is less than or equal to the temperature difference threshold, directly output the basic power instruction as the final power instruction signal; when the absolute value of the temperature difference is greater than the temperature difference threshold, start the temperature difference suppression strategy to prioritize the heating demand of the party with the lower temperature, and output the modified basic power instruction as the final power instruction signal. The output end of the power arbitration module is communicatively connected to a power execution module. The power execution module includes a power driver and a heating unit. The power driver adjusts the heating power of the heating unit according to the final power instruction signal. The temperature difference suppression strategy is configured to: identify the lower one of the current actual atmosphere temperature and the actual aluminum liquid temperature, calculate the current temperature difference between the lower temperature and its corresponding target temperature; generate a power compensation value based on the current temperature difference; and add the power compensation value to the basic power instruction to generate a modified final power instruction signal. The power compensation value generation algorithm is specifically: after identifying the party with lower current temperature (denoted as T_low), the current deviation (ΔT_low = |T_target_low - T_low|) of the party with lower current temperature and the corresponding target temperature (T_target_low) is calculated, and the power compensation value (P_comp) is calculated by the formula P_comp = Kp * ΔT_low, wherein Kp is a proportional coefficient, and the dimension of Kp is watt per degree Celsius (W / ℃), and the value of Kp is set through system thermodynamic model simulation or field experiment, so as to ensure that sufficient but not excessive compensation power is generated when the temperature difference is out of limit, and the temperature difference is quickly inhibited.
[0019] The power execution module receives the final power instruction signal from the central processing module and converts it into actual thermal energy output, and the module includes a power driver and a heating unit. When the strategy is not triggered, the power driver generates a basic power instruction according to the maximum principle to drive the heating unit in a conventional mode. Once the dynamic temperature difference monitoring unit detects that the temperature difference is out of limit and starts the temperature difference inhibition strategy, the response mode of the power execution module also changes. The strategy first accurately identifies the party with lower temperature, then calculates the current temperature difference of the party with lower temperature and generates a dynamic power compensation value according to a preset compensation algorithm. The compensation value is adaptive. The greater the temperature difference, the greater the compensation. Finally, the final instruction received by the power driver of the power execution module is the superposition of the basic power instruction and the power compensation value. Even if the demand power of the atmosphere temperature loop is greater at this time, the system will additionally allocate a part of the power to preferentially make up for the temperature gap of the aluminum liquid, so as to ensure that heat is directed to the part that needs it most, thereby quickly and efficiently eliminating the thermal imbalance in the system, preventing the working condition from deteriorating. The deep coupling between the execution mechanism and the high-level control strategy realizes the optimal dynamic allocation of energy.
[0020] The output end of the central processing module is also communicatively connected with a multi-mode operation management module, which is used to switch between a plurality of predefined working modes, including: a preheating mode, in which the atmosphere target temperature is set to be higher than the aluminum liquid target temperature by the dual target setting unit; a cooperative operation mode, in which the atmosphere target temperature and the aluminum liquid target temperature are set to be similar values required by the process; and an energy-saving heat preservation mode, in which the atmosphere target temperature and the aluminum liquid target temperature are both set to be heat preservation values lower than the normal working temperature. The state monitoring and fault-tolerant control module includes a sensor diagnosis unit and a fault-tolerant logic unit. The sensor diagnosis unit is used to monitor whether the output signals of the atmosphere detection unit and the aluminum liquid detection unit are in the effective range. The fault-tolerant logic unit is configured to: when the aluminum liquid detection unit is diagnosed as being faulty, automatically switch the system to an atmosphere temperature dominant mode, ignore the aluminum liquid demand power signal, and directly output the atmosphere demand power signal as the final power instruction signal of the power arbitration module, while triggering an alarm; and when the atmosphere detection unit is diagnosed as being faulty, automatically switch to an aluminum liquid temperature dominant mode, ignore the atmosphere demand power signal, and directly output the aluminum liquid demand power signal as the final power instruction signal. The state monitoring and fault-tolerant control module includes a sensor diagnosis unit and a fault-tolerant logic unit. The sensor diagnosis unit continuously monitors the output signals of the atmosphere detection unit and the aluminum liquid detection unit. Its diagnosis logic is far beyond a simple signal presence / absence judgment, including: signal range validity check; signal change rate mutation check; signal source resistance detection; when the diagnosis unit determines that the aluminum liquid detection unit has a permanent fault, the fault-tolerant logic unit immediately starts and executes a preset atmosphere temperature dominant mode: first, the signal from the faulty aluminum liquid detection unit and the aluminum liquid demand power signal calculated therefrom are ignored, then the system control is completely handed over to the normally working atmosphere temperature control loop, i.e. the atmosphere demand power signal is directly output as the final power instruction signal of the power arbitration module, at the same time, the system triggers a high-level alarm to the operator, indicating that the aluminum liquid temperature measurement is invalid, but the heating system itself can continue to work based on the furnace atmosphere temperature, preventing the aluminum liquid from solidifying in the equipment and causing a major production accident; similarly, when the atmosphere detection unit fails, the system switches to an aluminum liquid temperature dominant mode. The application reduces the impact of single-point sensor failure from complete shutdown to performance degradation, improving the availability of the equipment and the continuity of the production line.
[0021] The output end of the central processing module is also communicatively connected with a process linkage and energy efficiency optimization module, the process linkage and energy efficiency optimization module is used for data interaction with the upstream degassing device and the downstream filtering device of the molten aluminum treatment production line, the process linkage and energy efficiency optimization module is used for receiving the molten aluminum flow signal from the upstream degassing device and the blockage early warning signal from the downstream filtering device; the process linkage and energy efficiency optimization module outputs a dynamic adjustment instruction to the dual-target setting unit according to the molten aluminum flow signal and the blockage early warning signal to adjust the set value of the atmosphere target temperature signal and the molten aluminum target temperature signal; the dynamic adjustment instruction includes a flow compensation instruction and a viscosity adjustment instruction, the flow compensation instruction is configured to: when the molten aluminum flow signal shows that the flow rate increases by more than a preset threshold, an instruction is generated to increase the set value of the molten aluminum target temperature signal, for compensating the heat loss of the molten aluminum caused by the accelerated flow rate, the viscosity adjustment instruction is configured to: when the blockage early warning signal is received, a temporary instruction is generated to increase the set value of the molten aluminum target temperature signal by a predetermined offset within a preset time period, to reduce the viscosity of the molten aluminum by increasing the temperature; In the present application, the process linkage and energy efficiency optimization module establishes data interaction with the upstream degassing device and the downstream filtering device, it receives the molten aluminum flow signal from the upstream degassing device, when the flow rate significantly increases, the module will immediately generate a flow compensation instruction, the instruction will be sent to the dual-target setting unit, temporarily increasing the molten aluminum target temperature by an offset, the technical principle is: the accelerated flow rate will cause the heat loss of the molten aluminum to increase when flowing through the equipment, this instruction realizes "feedforward control", compensates the predictable heat loss in advance, avoids the temperature of the molten aluminum being too low when reaching the downstream, ensures the stability of product quality, at the same time, the module receives the blockage early warning signal from the downstream filtering device, when the early warning is triggered, indicating that the passability of the molten aluminum will be deteriorated, the module will generate a viscosity adjustment instruction, the instruction will increase the molten aluminum target temperature by a larger offset within a preset time period, because the viscosity of the molten aluminum decreases with the increase of the temperature, this operation can temporarily increase the flowability of the molten aluminum, slow down the speed of filter blockage, gain time for planned shutdown replacement, avoid unplanned production stop caused by sudden blockage, this dynamic and forward-looking adjustment based on the information flow of the production line improves the intelligent level and operation efficiency of the entire production system.
[0022] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. An inline apparatus dual control heating system, characterized by: The application relates to a central processing module, a temperature monitoring module, a power execution module and a state monitoring and fault tolerance control module. The double-target setting unit is used for independently setting an atmosphere target temperature and an aluminum liquid target temperature and outputting corresponding target temperature signals, the double-target setting unit is in communication connection with the double-loop control unit, the double-loop control unit has an atmosphere temperature control loop and an aluminum liquid temperature control loop, the atmosphere temperature control loop outputs an atmosphere demand power signal according to the deviation between the atmosphere target temperature signal and an actual atmosphere temperature signal from the atmosphere detection unit, and the aluminum liquid temperature control loop outputs an aluminum liquid demand power signal according to the deviation between the aluminum liquid target temperature signal and an actual aluminum liquid temperature signal from the aluminum liquid detection unit. The double-loop control unit is in communication connection with the power arbitration module, the power arbitration module is used for receiving the atmosphere demand power signal and the aluminum liquid demand power signal and comparing the power values of the two signals in real time, selecting the greater one as a basic power instruction, the dynamic temperature difference monitoring unit is in communication connection with the double-loop control unit, and the dynamic temperature difference monitoring unit is used for calculating the absolute value of the temperature difference between the actual atmosphere temperature and the actual aluminum liquid temperature in real time and comparing the absolute value with a preset temperature difference threshold value. The power arbitration module is internally integrated with a temperature difference suppression strategy, and the power arbitration module is configured to: When the absolute value of the temperature difference is less than or equal to the temperature difference threshold value, the basic power instruction is directly output as a final power instruction signal; 2. The dual control on-line apparatus heating system according to claim 1, wherein: When the absolute value of the temperature difference is greater than the temperature difference threshold value, the temperature difference suppression strategy is started to preferentially improve the heating demand of the lower temperature side, and the basic power instruction is corrected and output as the final power instruction signal. The output end of the power arbitration module is in communication connection with the power execution module, the power execution module comprises a power driver and a heating unit, the power driver adjusts the heating power of the heating unit according to the final power instruction signal, and the temperature difference suppression strategy is configured to:
3. The dual control on-line apparatus heating system according to claim 2, wherein: Identify the lower one of the current actual atmosphere temperature and the actual aluminum liquid temperature, and calculate the current temperature difference between the lower temperature and the corresponding target temperature; Generate a power compensation value based on the current temperature difference; Superimpose the power compensation value and the basic power instruction to generate a corrected final power instruction signal.
4. The dual control on-line apparatus heating system according to claim 3, wherein: The output end of the central processing module is also in communication connection with a multi-mode operation management module, the multi-mode operation management module is used for switching between multiple predefined working modes, and the working modes comprise: A preheating mode, in which the double-target setting unit sets the atmosphere target temperature to be higher than the aluminum liquid target temperature. 5. The dual control on-line apparatus heating system of claim 1, wherein: A synergic operation mode, in which the atmosphere target temperature and the molten aluminum target temperature are set to be close to the process required values; An energy saving and heat preservation mode, in which the atmosphere target temperature and the molten aluminum target temperature are set to be lower than the normal working temperature.
6. The dual control on-line apparatus heating system of claim 1, wherein: The state monitoring and fault-tolerant control module comprises a sensor diagnosis unit and a fault-tolerant logic unit, the sensor diagnosis unit is used to monitor whether the output signals of the atmosphere detection unit and the molten aluminum detection unit are in the effective range, and the fault-tolerant logic unit is configured to: When the molten aluminum detection unit is diagnosed as a fault, the system is automatically switched to the atmosphere temperature dominant mode, the molten aluminum required power signal is ignored, the atmosphere required power signal is directly output as the final power instruction signal of the power arbitration module, and an alarm is triggered at the same time; When the atmosphere detection unit is diagnosed as a fault, the system is automatically switched to the molten aluminum temperature dominant mode, the atmosphere required power signal is ignored, and the molten aluminum required power signal is directly output as the final power instruction signal.
7. The dual control on-line apparatus heating system of claim 1, wherein: The output end of the central processing module is also communicatively connected with a process linkage and energy efficiency optimization module, the process linkage and energy efficiency optimization module is used for data interaction with an upstream degassing device and a downstream filtering device of a molten aluminum processing production line, and the process linkage and energy efficiency optimization module is used for receiving a molten aluminum flow signal from the upstream degassing device and a blockage early warning signal from the downstream filtering device. The process linkage and energy efficiency optimization module outputs a dynamic adjustment instruction to the dual target setting unit according to the molten aluminum flow signal and the blockage early warning signal to adjust the set values of the atmosphere target temperature signal and the molten aluminum target temperature signal.
8. The dual control on-line apparatus heating system according to claim 7, wherein: The dynamic adjustment instruction comprises a flow compensation instruction and a viscosity adjustment instruction, the flow compensation instruction is configured to generate an instruction to increase the set value of the molten aluminum target temperature signal when the molten aluminum flow signal shows that the flow rate increases by more than a preset threshold value, so as to compensate for the heat loss of the molten aluminum due to the accelerated flow rate, and the viscosity adjustment instruction is configured to generate a temporary instruction to increase the set value of the molten aluminum target temperature signal by a predetermined offset within a preset time period when the blockage early warning signal is received, so as to reduce the viscosity of the molten aluminum by increasing the temperature.