Waste heat recovery method of high-efficiency waste heat recovery equipment

Abstract

The present invention relates to a waste heat recovery method of a high-efficiency waste heat recovery device, and belongs to the field of environmental protection technology. A high-efficiency waste heat recovery device comprises: a side well furnace, the side well furnace is provided with a molten pool, the side well furnace is provided with a discharge port, an aluminum material feeding channel and an exhaust channel; a feeding device, the feeding device is connected to the aluminum material feeding channel; a cyclone separator, the cyclone separator is provided with a separation chamber, the cyclone separator is provided with an air inlet, an air outlet and a slag discharge port connected to the separation chamber, the air inlet is connected to the exhaust channel; a fan, the fan is connected to the air outlet of the cyclone separator. The present application discloses a high-efficiency preheating recovery device, which not only improves the processing efficiency of waste aluminum, but also optimizes the waste gas treatment. At the same time, the waste gas can be reused and burned again, and preheating can be effectively utilized, which enhances the operating stability and environmental friendliness of the system.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, and in particular to a waste heat recovery method of a high-efficiency waste heat recovery device. Background Art

[0002] Scrap aluminum needs to be recycled, but scrap aluminum often comes from residues after processing. During the recycling process, scrap aluminum is attached with a lot of combustibles, which will be quickly atomized after melting. Currently, the atomized combustible flue gas is directly burned when discharged, which wastes the combustible flue gas and increases pollutants. Summary of the invention

[0003] Based on this, it is necessary to provide a waste heat recovery method of an efficient waste heat recovery equipment to address the problem of waste of combustible flue gas after melting of waste aluminum.

[0004] A high-efficiency waste heat recovery equipment, the high-efficiency waste heat recovery equipment comprises: a side well furnace, the side well furnace is provided with a molten pool, the side well furnace is provided with a discharge port connected to the molten pool, the side well furnace is provided with an aluminum material feed channel and an exhaust channel, the aluminum material feed channel and the exhaust channel are connected to the molten pool; a feeding device, the feeding device is connected to the aluminum material feed channel, the feeding device is used to supply scrap aluminum; a cyclone separator, the cyclone separator is provided with a separation chamber, the cyclone separator is provided with an air inlet, an air outlet and a slag discharge port connected to the separation chamber, the air inlet is connected to the exhaust channel; a fan, the fan is connected to the air outlet of the cyclone separator.

[0005] The present application discloses a high-efficiency preheating recovery device. The side well furnace is provided with a molten pool, which can effectively melt the scrap aluminum material and ensure sufficient heat utilization. The discharge port is connected to the molten pool, which is convenient for the molten aluminum liquid to flow out, thereby improving production efficiency. The aluminum material feed channel and the exhaust channel are respectively connected to the molten pool, so that the scrap aluminum feed and the exhaust gas discharge can be separated, avoiding cross contamination and improving the operation stability of the system. The feeding device is connected to the aluminum material feed channel, which can continuously and stably supply scrap aluminum to the molten pool, ensuring the continuity and stability of the melting process. The design of the feeding device is convenient for controlling the feed amount, ensuring the efficient progress of the melting process, and improving the production efficiency of the entire system. The cyclone separator is provided with a separation chamber, which can effectively separate the particulate matter in the exhaust gas. The air inlet is connected to the exhaust channel of the side well furnace, ensuring that the exhaust gas can smoothly enter the separation chamber for treatment. The gas discharged through the air outlet has been separated, and the particulate matter is discharged through the slag discharge port, which greatly reduces environmental pollution and improves the efficiency of exhaust gas treatment. The fan is connected to the air outlet of the cyclone separator, which can provide sufficient power to ensure that the exhaust gas can be separated and processed smoothly through the cyclone separator. The design of the fan improves the efficiency of exhaust gas emission, ensures smooth airflow inside the system, and improves the overall operating efficiency of the waste heat recovery equipment. Through the above design, the high-efficiency waste heat recovery equipment not only improves the processing efficiency of scrap aluminum, but also optimizes the waste gas treatment. At the same time, the waste gas can be reused and burned again, which can effectively utilize preheating and enhance the system's operating stability and environmental friendliness.

[0006] In one of the embodiments, the cyclone separator is also provided with an explosion relief port. Through the explosion relief port provided on the cyclone separator, the excess pressure can be automatically discharged when the air pressure inside the equipment is too high, thereby preventing equipment damage or explosion due to excessive pressure. This design significantly improves the safety of system operation and reduces the possibility of accidents. The setting of the explosion relief port can release excessive internal pressure in time, ensuring that the internal pressure of the cyclone separator is always within a safe range. This not only protects the equipment itself, but also ensures the stable operation of the entire high-efficiency waste heat recovery system.

[0007] In one embodiment, there are multiple cyclone separators, and the multiple cyclone separators are connected in sequence. The design of multiple cyclone separators connected in sequence allows the airflow and particulate matter to go through multiple separation stages. Each cyclone separator can further separate fine particles, gradually improve the separation efficiency, and ensure that the discharged gas is cleaner. Through multi-stage cyclone separation, particles of different sizes can be separated separately at different stages. In this way, various particulate matter can be processed in a targeted manner, the overall separation accuracy can be improved, and the final discharged gas can reach a higher cleanliness standard.

[0008] In one embodiment, the discharge port is located at the bottom of the side well furnace, the aluminum material feed channel is located at the side of the side well furnace and on a side adjacent to the discharge port, and the exhaust channel is arranged relative to the area where the discharge port is located. The discharge port is arranged at the bottom of the side well furnace, and the aluminum material can flow smoothly to the discharge port under the action of gravity, thereby improving the flow efficiency of the aluminum material. This design reduces the residence time of the aluminum material in the furnace, ensures that the molten aluminum material can be discharged in time, and improves the overall processing efficiency. The exhaust channel is located away from the discharge port, so that the exhaust gas can be discharged quickly, reducing the accumulation of harmful gases inside and around the side well furnace. This design not only helps to protect the health of the operators, but also improves the overall working environment and improves safety and comfort. The adjacent layout of the feed channel and the discharge port allows the scrap aluminum to be quickly sucked into the bottom of the pool for melting after entering the furnace again.

[0009] The second aspect of the present application discloses a high-efficiency waste heat recovery method, which comprises the following steps:

[0010] S1. Open the discharge port of the side well furnace and discharge the molten aluminum liquid at the discharge port;

[0011] S2, conveying the scrap aluminum into the aluminum material feeding channel through the feeding device, and putting the scrap aluminum into the molten pool in an area corresponding to the discharge port;

[0012] S3. The scrap aluminum put into the molten pool will fall into the vortex formed in the molten pool when discharging, and will be quickly sucked into the molten aluminum liquid. The substances attached to the scrap aluminum will be quickly vaporized, and the vaporized substances will become smoke and rise into the exhaust channel;

[0013] S4. Negative pressure is generated by the operation of the fan, and the flue gas generated in step S3 is extracted from the exhaust channel. The extracted flue gas is separated by a cyclone separator, and large particles in the flue gas will be separated. The remaining flue gas is transported by the fan to the gas nozzle for reuse.

[0014] The second aspect of the present application discloses a highly efficient waste heat recovery method. A vortex is formed in the process of discharging aluminum liquid at the discharge port. The vortex generates a certain adsorption force. After the scrap aluminum is put into the molten pool, it can be carried into the molten aluminum liquid by the vortex. The scrap aluminum flakes with small volume can be processed relatively well, and a large amount of scrap aluminum flakes can be prevented from floating on the aluminum liquid. After the scrap aluminum is sucked into the vortex, various substances on the scrap aluminum will be quickly vaporized due to the high temperature of the aluminum liquid. Since scrap aluminum generally comes from processing, there is a lot of oil and dirt attached to the scrap aluminum. When it comes into contact with high temperature, it will be quickly vaporized to form high-temperature combustible steam, which will enter the exhaust channel and be sucked out in the exhaust channel. After the cyclone separation of the cyclone separator, the flue gas is transported to the gas nozzle for use as auxiliary fuel gas, which can utilize the residual temperature of the flue gas and the combustible substances in the flue gas to avoid heat waste.

[0015] In one embodiment, the specific steps of step S1 are as follows:

[0016] S11. Install multiple temperature sensors inside the side shaft furnace and at the discharge port to monitor the temperature at different locations in real time to ensure that the molten aluminum reaches a suitable temperature. At the same time, monitor the liquid level of the aluminum and provide real-time data.

[0017] S12, receiving information fed back by multiple temperature sensors and liquid level information;

[0018] S13, through the algorithm to analyze the temperature sensor data, automatically adjust the heating power to ensure the constant temperature of the aluminum liquid, adjust the discharge speed and feed rate in real time, and ensure that the liquid level in the molten pool is always within the pre-approved range;

[0019] S14, adjust the discharging speed and direction in real time, optimize the vortex effect, and ensure that the scrap aluminum is quickly absorbed into the molten aluminum liquid.

[0020] Temperature sensors are placed at multiple key locations of the side shaft furnace, such as inside the furnace and at the discharge port, to monitor temperature changes in real time and monitor the aluminum liquid level. Accurate temperature and liquid level data are provided to ensure that operators and automatic control systems are aware of the state of the molten aluminum in a timely manner to prevent overheating or overcooling and excessively high or low liquid levels. By monitoring temperature and liquid level in real time, abnormal conditions can be discovered in a timely manner and corresponding measures can be taken to avoid accidents. The safety of equipment operation is improved, equipment and operators are protected, and the accident rate is reduced. Data from multiple sensors are aggregated to the control system, processed and displayed in real time for reference by operators and control systems. Comprehensive and real-time data support is provided to ensure that the system has an accurate understanding of the situation in the furnace and makes correct control decisions. Algorithms are used to analyze sensor data, and heating power is automatically adjusted according to temperature changes to keep the aluminum liquid within the optimal temperature range. The temperature control accuracy of the aluminum liquid melting and holding process is improved, energy consumption is reduced, and the quality of the aluminum liquid is ensured to be stable. The discharge speed and feed rate are adjusted in real time to ensure that the molten pool level is stable within the preset range. Prevent overflow due to excessively high liquid level or discontinuous discharge due to too low liquid level, and ensure the continuity and stability of the production process. By adjusting the discharge speed and direction, the strength and position of the vortex in the molten pool are controlled to enhance the suction effect of scrap aluminum. Improve the melting efficiency of scrap aluminum, ensure that scrap aluminum is quickly integrated into the aluminum liquid, and reduce the retention time of unmelted scrap aluminum.

[0021] In one embodiment, the step S14 is followed by the following steps:

[0022] S15, combining the information fed back by multiple temperature sensors and the liquid level information, calculating through an intelligent algorithm, automatically shutting down and closing the discharge port when an abnormal situation is detected;

[0023] S16. Trigger different levels of alarms according to the severity of the problem and notify the operator in time;

[0024] S17, using the information fed back by multiple temperature sensors and liquid level information to perform data analysis, monitor the equipment status in real time, and predict potential failures;

[0025] S18. Based on the prediction results, schedule maintenance work in advance to reduce downtime and improve system reliability.

[0026] The system integrates data from multiple temperature sensors and liquid level sensors and uses intelligent algorithms to analyze the equipment operating status in real time. Once an abnormality is detected, such as excessive temperature or abnormal liquid level, the system will automatically shut down and close the discharge port. Improve the safety and reliability of equipment operation, avoid equipment damage or safety accidents caused by excessive temperature or abnormal liquid level, and protect the safety of equipment and operators. Reduce the need for operator intervention through the functions of automatic shutdown and closing the discharge port. Reduce the risk of human operating errors, improve the degree of equipment automation, and reduce the workload of operators. The system triggers different levels of alarms according to the severity of the abnormal situation, provides visual and auditory prompts, and promptly notifies operators to take corresponding measures. Provide clear alarm level information to help operators quickly determine the severity of the problem, take effective measures in time, and reduce losses and impacts. The system uses data analysis and prediction models to monitor equipment status and predict potential faults using information fed back by sensors. Implement preventive maintenance of equipment, avoid sudden shutdowns by predicting potential faults in advance, and improve the continuity and reliability of equipment operation. Through big data analysis, provide a comprehensive view of the equipment operating status to help operators and managers make data-based decisions. Improve the scientificity and accuracy of decision-making, optimize equipment maintenance and management strategies, and extend equipment life. The system arranges maintenance work in advance based on fault prediction results to avoid sudden equipment failures. Reduce unplanned downtime, ensure that equipment operates in the best condition, and improve the overall efficiency and reliability of the production line.

[0027] In one embodiment, the specific steps of step S2 are as follows:

[0028] S21, installing temperature, weight and position sensors at the starting point, middle and end point of the feeding device to monitor the status and position of the scrap aluminum in real time;

[0029] S22, dynamically adjusting the conveying speed, vibrating the scrap aluminum conveyed by the feeding device through a vibrator, and adjusting the frequency of the vibrator to ensure uniform and continuous conveying of the scrap aluminum;

[0030] S23, monitor the temperature around the feed channel in real time, adjust the flow and temperature of the coolant through the intelligent liquid cooling system to protect the equipment;

[0031] S24. Use a machine vision system to identify the shape of the scrap aluminum and automatically adjust the scrap aluminum guide path based on the size and shape of the scrap aluminum to ensure that the scrap aluminum enters the predetermined area smoothly.

[0032] Sensors installed at key positions of the feeding device can monitor the temperature, weight and position of scrap aluminum in real time and provide accurate data feedback. Ensuring the transparency and controllability of the feeding process helps to detect and solve problems in a timely manner and avoid failures or equipment damage caused by excessive temperature or uneven weight distribution. Through real-time monitoring, ensure that the state of scrap aluminum remains stable throughout the entire conveying process. Improve feeding efficiency and quality, reduce deviations and errors in the conveying process, and ensure that scrap aluminum enters the molten pool smoothly. Ensure the uniformity and continuity of scrap aluminum during the conveying process by dynamically adjusting the conveying speed and the frequency of the vibrator. Avoid blockage or accumulation of scrap aluminum during the conveying process, improve conveying efficiency, ensure that scrap aluminum is evenly distributed in the molten pool, and improve the melting effect. By adjusting the vibration frequency and conveying speed, reduce the friction and loss of scrap aluminum during the conveying process. By real-time monitoring the temperature around the feeding channel, the intelligent liquid cooling system can adjust the flow and temperature of the coolant according to temperature changes to ensure that the equipment works within a suitable temperature range. Protect the feeding device and conveying equipment, avoid equipment damage caused by high temperature, and improve the safety and stability of the equipment. The machine vision system can identify the shape and size of scrap aluminum and automatically adjust the guide path according to the identification results to ensure that the scrap aluminum enters the predetermined area smoothly. It improves the intelligence and automation of the feeding process, reduces manual intervention, and improves the efficiency and accuracy of transportation.

[0033] In one embodiment, the specific steps of step S3 are as follows:

[0034] S31, using a multi-point laser scanner to scan the surface of the aluminum liquid in the molten pool in real time to accurately locate the vortex position;

[0035] S32. Install an intelligent control valve at the discharge port, adjust the discharge speed and flow rate according to the algorithm-optimized parameters to ensure the formation of a stable vortex, and use a machine learning algorithm to analyze historical data to optimize the discharge speed, angle, and flow rate to ensure the adsorption force and stability of the vortex;

[0036] S33, install flow rate sensor, monitor aluminum liquid flow rate in real time, feed back data to control system, and dynamically adjust discharging parameters;

[0037] S34, analyzing the smoke composition at the inlet of the exhaust channel in real time and adjusting the feeding speed;

[0038] S35. Monitor the pressure at the outlet of the exhaust duct, dynamically adjust the fan speed and power, and maintain the negative pressure in the exhaust duct.

[0039] The multi-point laser scanner can scan the surface of the aluminum liquid in the molten pool in real time, providing high-precision surface shape and vortex position data. Providing accurate vortex position information helps to optimize the location and time of scrap aluminum delivery, improve the adsorption efficiency of scrap aluminum, and ensure that scrap aluminum is quickly integrated into the aluminum liquid. Real-time scanning and data feedback enable operators to grasp the status of the molten pool in real time and adjust operating parameters in time. The intelligent control valve can dynamically adjust the discharge speed and flow rate according to the parameters optimized by the algorithm to ensure the stability of the vortex. Ensure the stability of vortex formation and maintenance, improve the adsorption and integration efficiency of scrap aluminum, reduce scrap aluminum retention and dispersion, and improve the overall melting effect. Use machine learning algorithms to analyze historical data and continuously optimize the discharge speed, angle and flow parameters. The flow rate sensor can monitor the flow rate of aluminum liquid in real time and feed the data back to the control system. Providing accurate flow rate data helps to dynamically adjust the discharge parameters, ensure the stability of the discharge speed and flow rate, and improve the fluidity and uniformity of aluminum liquid. By real-time analysis of the flue gas composition at the inlet of the exhaust channel, key data in the scrap aluminum feeding process are provided. According to the changes in flue gas composition, the feeding speed is dynamically adjusted to ensure the balance and stability of the feeding process, reduce harmful components in flue gas emissions, and improve environmental friendliness. The feeding speed is adjusted in real time to ensure that scrap aluminum enters the molten pool at an appropriate speed and quantity, avoiding temperature and pressure fluctuations in the molten pool caused by excessive feeding. By monitoring the pressure at the outlet of the exhaust channel, real-time data on the operating status of the exhaust system is provided. According to the pressure data, the speed and power of the fan are dynamically adjusted to ensure that the negative pressure of the exhaust channel is maintained within the set range, thereby improving the stability and efficiency of the exhaust system.

[0040] In one embodiment, the specific steps of step S4 are as follows:

[0041] S41, monitor the pressure in the exhaust duct and feed it back to the fan controller, and use a closed-loop control algorithm to automatically adjust the fan operating parameters to ensure a stable negative pressure environment;

[0042] S42. Install particle sensors at the inlet and outlet of the cyclone separator to detect the concentration of particulate matter in the flue gas in real time and optimize the separation effect;

[0043] S43, using historical data and real-time sensor data, continuously optimize the working parameters of the cyclone separator through machine learning algorithms to improve separation efficiency;

[0044] S44. Install an intelligent controller at the gas nozzle to automatically adjust the nozzle opening and injection angle according to the flue gas composition and temperature to optimize combustion efficiency;

[0045] S45. Monitor and control the mixing ratio of flue gas and fuel gas in real time to ensure stable combustion.

[0046] Monitor the pressure data in the exhaust channel in real time, and feed the data back to the fan controller through a closed-loop control algorithm. Ensure that a stable negative pressure environment is maintained in the exhaust channel to avoid the impact of pressure fluctuations on the system and improve the stability and efficiency of the system operation. Automatically adjust the operating parameters of the fan, such as speed and power, according to the pressure changes. Dynamically optimize the fan operation to ensure the continuity and stability of the exhaust process, improve the working efficiency of the fan, and extend the service life of the equipment. Install particle sensors at the inlet and outlet of the cyclone separator to detect the concentration of particulate matter in the flue gas in real time. Monitor the concentration of particulate matter before and after separation and provide accurate data, which helps to evaluate and optimize the separation effect of the cyclone separator and ensure the separation efficiency. Dynamically adjust the working parameters of the cyclone separator according to the real-time monitoring data. Improve the efficiency of the separator, reduce the residual particulate matter in the flue gas, and improve the environmental friendliness and working efficiency of the system. Combine historical data and real-time sensor data, and use machine learning algorithms to analyze and optimize the working parameters of the cyclone separator. Realize intelligent optimization of separator parameters, improve separation efficiency and stability, reduce manual intervention, and improve the adaptive ability of the system. Through machine learning algorithms, continuously learn and improve the operating mode of the cyclone separator. Continuously improve separation efficiency, adapt to the operation requirements under different working conditions, and improve the overall performance and work efficiency of the equipment. Install an intelligent controller at the gas nozzle to monitor the flue gas composition and temperature in real time, and automatically adjust the nozzle opening and injection angle. Optimize the combustion process, improve combustion efficiency, reduce fuel consumption and harmful emissions, and improve the economy and environmental friendliness of the system. Monitor the mixing ratio of flue gas and gas in real time, and use the intelligent control system to dynamically adjust the mixing ratio. Ensure the optimal mixing ratio of gas and flue gas, ensure the stability and efficiency of the combustion process, and reduce energy loss and harmful emissions caused by incomplete combustion.

[0047] In one embodiment, the step S4 is followed by the following steps:

[0048] S5. When explosion risk is detected, the explosion relief port of the cyclone separator is automatically opened to release pressure.

[0049] During the operation of the equipment, by monitoring and analyzing data, when an explosion risk is detected, the system automatically opens the explosion vent of the cyclone separator to release the internal pressure. It provides important safety protection measures to eliminate or reduce the risk of explosion in a timely manner and protect the safety of equipment and operators. The automatic opening of the explosion vent can effectively release the accumulated pressure and reduce the possibility of explosion. It responds quickly at critical moments to prevent explosions caused by excessive pressure and protect the safety of equipment and the surrounding environment.

[0050] In one embodiment, the specific steps of step S5 are as follows:

[0051] S51. Install temperature sensors and combustible gas sensors at the air inlet, air outlet and separation chamber of the cyclone separator to monitor the flue gas temperature and the combustible gas concentration in the flue gas in real time, and install a pressure sensor in the separation chamber of the cyclone separator to monitor the pressure in the separation chamber in real time;

[0052] S52, configuring an automatic cooling system, when the temperature sensor detects that the flue gas temperature exceeds a preset threshold, automatically starting the cooling system to reduce the temperature of the cyclone separator;

[0053] S53, using the intelligent controller to dynamically adjust the operating parameters of the cooling system according to the temperature sensor data to ensure that the temperature is maintained within a safe range;

[0054] S54. Based on the data from the combustible gas sensor and the pressure sensor, when it is detected that the parameters exceed the pre-examination value, the explosion relief vent is automatically opened to release the pressure.

[0055] Temperature sensors and combustible gas sensors, as well as pressure sensors, are installed at the air inlet, air outlet and separation chamber of the cyclone separator to monitor the temperature of the flue gas, the concentration of combustible gas and the pressure in the separation chamber in real time. Comprehensive flue gas status monitoring is provided to help timely identify potential safety risks, such as overheating, incomplete combustion or abnormal pressure, and take corresponding measures to ensure the safety of equipment and operators. An automatic cooling system is configured. When the temperature sensor detects that the flue gas temperature exceeds the preset threshold, the system automatically starts the cooling system to reduce the temperature of the cyclone separator. In the case of abnormal temperature, the separator temperature is reduced in time to effectively prevent equipment damage or safety problems caused by overheating and extend the service life of the equipment. The intelligent controller is used to dynamically adjust the operating parameters of the cooling system according to the temperature sensor data to ensure that the flue gas temperature is always maintained within a safe range. The system's adaptability and responsiveness are improved to ensure that a safe working environment can be maintained under various operating conditions, reducing the need for equipment maintenance and operator intervention. When the combustible gas sensor and pressure sensor detect parameters that exceed the preset value, the system automatically opens the explosion vent of the cyclone separator to release the internal pressure. Reliably prevent and respond to potential explosion risks, protect the safety of equipment, environment and operators, and avoid accidents and losses that may be caused by pressure accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is a connection diagram of a high-efficiency waste heat recovery device;

[0057] Figure 2 It is a specific flow chart of step S1 to step S4;

[0058] Figure 3 It is a specific flow chart of step S11 to step S14;

[0059] Figure 4 It is a specific flow chart of step S15 to step S18;

[0060] Figure 5 It is a specific flow chart of step S21 to step S24;

[0061] Figure 6 It is a specific flow chart of step S31 to step S35;

[0062] Figure 7 It is a schematic diagram of the specific process from step S41 to step S45;

[0063] Figure 8 It is a specific flow chart of step S1 to step S5;

[0064] Fig. 9 It is a specific flowchart diagram of step S51 to step S54.

[0065] The corresponding relationship between the reference numerals and the component names is as follows:

[0066] 1 side well furnace, 101 molten pool, 102 discharge port, 103 aluminum material feeding channel, 104 exhaust channel;

[0067] 2. Feeding device;

[0068] 3 cyclone separator, 301 separation chamber, 302 air inlet, 303 air outlet, 304 slag discharge outlet, 305 explosion discharge outlet;

[0069] 4 fans. DETAILED DESCRIPTION

[0070] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0071] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0072] The following describes the high-efficiency waste heat recovery equipment according to some embodiments of the present invention with reference to the accompanying drawings. Example 1

[0073] like Figure 1As shown, this embodiment discloses a high-efficiency waste heat recovery device, which includes: a side well furnace 1, the side well furnace 1 is provided with a molten pool 101, the side well furnace 1 is provided with a discharge port 102 connected to the molten pool 101, the side well furnace 1 is provided with an aluminum material feeding channel 103 and an exhaust channel 104, the aluminum material feeding channel 103 and the exhaust channel 104 are connected to the molten pool 101; a feeding device 2, the feeding device 2 is connected to the aluminum material feeding channel 103, and the feeding device 2 is used to supply scrap aluminum; a cyclone separator 3, the cyclone separator 3 is provided with a separation chamber 301, the cyclone separator 3 is provided with an air inlet 302, an air outlet 303 and a slag discharge port 304 connected to the separation chamber, and the air inlet 302 is connected to the exhaust channel 104;

[0074] The fan 4 is connected to the air outlet 303 of the cyclone separator 3 .

[0075] The present application discloses a waste heat recovery method of an efficient preheating recovery device. The side well furnace 1 is provided with a molten pool 101, which can effectively melt the waste aluminum material and ensure sufficient heat utilization. The discharge port 102 is connected to the molten pool 101, which is convenient for the molten aluminum liquid to flow out, thereby improving production efficiency. The aluminum material feed channel 103 and the exhaust channel 104 are respectively connected to the molten pool 101, so that the waste aluminum feed and the exhaust gas discharge can be separated, avoiding cross contamination and improving the operation stability of the system. The feeding device 2 is connected to the aluminum material feed channel 103, and can continuously and stably supply waste aluminum to the molten pool 101, ensuring the continuity and stability of the melting process. The design of the feeding device 2 is convenient for controlling the feed amount, ensuring the efficient progress of the melting process, and improving the production efficiency of the entire system. The cyclone separator 3 is provided with a separation chamber 301, which can effectively separate the particulate matter in the exhaust gas. The air inlet 302 is connected to the exhaust channel 104 of the side well furnace 1, ensuring that the exhaust gas can smoothly enter the separation chamber for treatment. The gas discharged through the air outlet 303 has been separated, and the particulate matter is discharged through the slag discharge port 304, which greatly reduces environmental pollution and improves the efficiency of waste gas treatment. The fan 4 is connected to the air outlet 303 of the cyclone separator 3, and can provide sufficient power to ensure that the waste gas can be smoothly separated and treated by the cyclone separator. The design of the fan improves the efficiency of waste gas emission, ensures smooth airflow inside the system, and improves the overall operating efficiency of the waste heat recovery equipment. Through the above design, the high-efficiency waste heat recovery equipment not only improves the processing efficiency of scrap aluminum, but also optimizes the waste gas treatment. At the same time, the waste gas can be reused and burned again, which can effectively utilize preheating and enhance the operating stability and environmental friendliness of the system.

[0076] like Figure 1As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines that: the cyclone separator 3 is also provided with an explosion-discharging port 305. Through the explosion-discharging port 305 provided on the cyclone separator 3, the excess pressure can be automatically discharged when the air pressure inside the equipment is too high, thereby preventing equipment damage or explosion due to excessive pressure. This design significantly improves the safety of system operation and reduces the possibility of accidents. The setting of the explosion-discharging port 305 can release excessive internal pressure in time, ensuring that the internal pressure of the cyclone separator 3 is always within a safe range. This not only protects the equipment itself, but also ensures the stable operation of the entire high-efficiency waste heat recovery system.

[0077] like Figure 1 As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines that: the number of cyclone separators 3 is multiple, and the multiple cyclone separators 3 are connected in sequence. The design of multiple cyclone separators 3 being connected in sequence allows the airflow and particulate matter to go through multiple separation stages. Each cyclone separator can further separate fine particles, gradually improve the separation efficiency, and ensure that the discharged gas is cleaner. Through multi-stage cyclone separation, particles of different sizes can be separated separately at different stages. In this way, various particulate matter can be treated in a targeted manner, the overall separation accuracy can be improved, and the final discharged gas can reach a higher cleanliness standard.

[0078] like Figure 1 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the discharge port 102 is located at the bottom of the side well furnace 1, the aluminum material feeding channel 103 is located at the side of the side well furnace 1 and is located on the side adjacent to the discharge port 102, and the exhaust channel 104 is arranged relative to the area where the discharge port 102 is located. The discharge port 102 is arranged at the bottom of the side well furnace 1, and the aluminum material can flow smoothly to the discharge port under the action of gravity, thereby improving the flow efficiency of the aluminum material. This design reduces the retention time of the aluminum material in the furnace, ensures that the molten aluminum material can be discharged in time, and improves the overall processing efficiency. The exhaust channel 104 is far away from the discharge port 102, so that the exhaust gas can be discharged quickly, reducing the accumulation of harmful gases inside and around the side well furnace. This design not only helps to protect the health of the operators, but also improves the overall working environment, safety and comfort. The layout of the feed channel and the discharge port adjacent to each other allows the scrap aluminum to be quickly sucked into the bottom of the pool for melting after entering the furnace. Example 2

[0079] like Figure 2 As shown, this embodiment discloses a high-efficiency waste heat recovery method, which includes the following steps:

[0080] S1. Open the discharge port of the side well furnace and discharge the molten aluminum liquid at the discharge port;

[0081] S2, conveying the scrap aluminum into the aluminum material feeding channel through the feeding device, and putting the scrap aluminum into the molten pool in an area corresponding to the discharge port;

[0082] S3. The scrap aluminum put into the molten pool will fall into the vortex formed in the molten pool when discharging, and will be quickly sucked into the molten aluminum liquid. The substances attached to the scrap aluminum will be quickly vaporized, and the vaporized substances will become smoke and rise into the exhaust channel;

[0083] S4. Negative pressure is generated by the operation of the fan, and the flue gas generated in step S3 is extracted from the exhaust channel. The extracted flue gas is separated by a cyclone separator, and large particles in the flue gas will be separated. The remaining flue gas is transported by the fan to the gas nozzle for reuse.

[0084] The second aspect of the present application discloses a highly efficient waste heat recovery method. A vortex is formed in the process of discharging aluminum liquid at the discharge port. The vortex generates a certain adsorption force. After the scrap aluminum is put into the molten pool, it can be carried into the molten aluminum liquid by the vortex. The scrap aluminum flakes with small volume can be processed relatively well, and a large amount of scrap aluminum flakes can be prevented from floating on the aluminum liquid. After the scrap aluminum is sucked into the vortex, various substances on the scrap aluminum will be quickly vaporized due to the high temperature of the aluminum liquid. Since scrap aluminum generally comes from processing, there is a lot of oil and dirt attached to the scrap aluminum. When it comes into contact with high temperature, it will be quickly vaporized to form high-temperature combustible steam, which will enter the exhaust channel and be sucked out in the exhaust channel. After the cyclone separation of the cyclone separator, the flue gas is transported to the gas nozzle for use as auxiliary fuel gas, which can utilize the residual temperature of the flue gas and the combustible substances in the flue gas to avoid heat waste.

[0085] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further defines:

[0086] The specific steps of step S1 are as follows:

[0087] S11. Install multiple temperature sensors inside the side shaft furnace and at the discharge port to monitor the temperature at different locations in real time to ensure that the molten aluminum reaches a suitable temperature. At the same time, monitor the liquid level of the aluminum and provide real-time data.

[0088] S12, receiving information fed back by multiple temperature sensors and liquid level information;

[0089] S13, through the algorithm to analyze the temperature sensor data, automatically adjust the heating power to ensure the constant temperature of the aluminum liquid, adjust the discharge speed and feed rate in real time, and ensure that the liquid level in the molten pool is always within the pre-approved range;

[0090] S14, adjust the discharging speed and direction in real time, optimize the vortex effect, and ensure that the scrap aluminum is quickly absorbed into the molten aluminum liquid.

[0091] Temperature sensors are placed at multiple key locations of the side shaft furnace, such as inside the furnace and at the discharge port, to monitor temperature changes in real time and monitor the aluminum liquid level. Accurate temperature and liquid level data are provided to ensure that operators and automatic control systems are aware of the state of the molten aluminum in a timely manner to prevent overheating or overcooling and excessively high or low liquid levels. By monitoring temperature and liquid level in real time, abnormal conditions can be discovered in a timely manner and corresponding measures can be taken to avoid accidents. The safety of equipment operation is improved, equipment and operators are protected, and the accident rate is reduced. Data from multiple sensors are aggregated to the control system, processed and displayed in real time for reference by operators and control systems. Comprehensive and real-time data support is provided to ensure that the system has an accurate understanding of the situation in the furnace and makes correct control decisions. Algorithms are used to analyze sensor data, and heating power is automatically adjusted according to temperature changes to keep the aluminum liquid within the optimal temperature range. The temperature control accuracy of the aluminum liquid melting and holding process is improved, energy consumption is reduced, and the quality of the aluminum liquid is ensured to be stable. The discharge speed and feed rate are adjusted in real time to ensure that the molten pool level is stable within the preset range. Prevent overflow due to excessively high liquid level or discontinuous discharge due to too low liquid level, and ensure the continuity and stability of the production process. By adjusting the discharge speed and direction, the strength and position of the vortex in the molten pool are controlled to enhance the suction effect of scrap aluminum. Improve the melting efficiency of scrap aluminum, ensure that scrap aluminum is quickly integrated into the aluminum liquid, and reduce the retention time of unmelted scrap aluminum.

[0092] like Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further defines:

[0093] After step S14, there are the following steps:

[0094] S15, combining the information fed back by multiple temperature sensors and the liquid level information, calculating through an intelligent algorithm, automatically shutting down and closing the discharge port when an abnormal situation is detected;

[0095] S16. Trigger different levels of alarms according to the severity of the problem and notify the operator in time;

[0096] S17, using the information fed back by multiple temperature sensors and liquid level information to perform data analysis, monitor the equipment status in real time, and predict potential failures;

[0097] S18. Based on the prediction results, schedule maintenance work in advance to reduce downtime and improve system reliability.

[0098] The system integrates data from multiple temperature sensors and liquid level sensors and uses intelligent algorithms to analyze the equipment operating status in real time. Once an abnormality is detected, such as excessive temperature or abnormal liquid level, the system will automatically shut down and close the discharge port. Improve the safety and reliability of equipment operation, avoid equipment damage or safety accidents caused by excessive temperature or abnormal liquid level, and protect the safety of equipment and operators. Reduce the need for operator intervention through the functions of automatic shutdown and closing the discharge port. Reduce the risk of human operating errors, improve the degree of equipment automation, and reduce the workload of operators. The system triggers different levels of alarms according to the severity of the abnormal situation, provides visual and auditory prompts, and promptly notifies operators to take corresponding measures. Provide clear alarm level information to help operators quickly determine the severity of the problem, take effective measures in time, and reduce losses and impacts. The system uses data analysis and prediction models to monitor equipment status and predict potential faults using information fed back by sensors. Implement preventive maintenance of equipment, avoid sudden shutdowns by predicting potential faults in advance, and improve the continuity and reliability of equipment operation. Through big data analysis, provide a comprehensive view of the equipment operating status to help operators and managers make data-based decisions. Improve the scientificity and accuracy of decision-making, optimize equipment maintenance and management strategies, and extend equipment life. The system arranges maintenance work in advance based on fault prediction results to avoid sudden equipment failures. Reduce unplanned downtime, ensure that equipment operates in the best condition, and improve the overall efficiency and reliability of the production line.

[0099] like Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further defines:

[0100] The specific steps of step S2 are as follows:

[0101] S21, installing temperature, weight and position sensors at the starting point, middle and end point of the feeding device to monitor the status and position of the scrap aluminum in real time;

[0102] S22, dynamically adjusting the conveying speed, vibrating the scrap aluminum conveyed by the feeding device through a vibrator, and adjusting the frequency of the vibrator to ensure uniform and continuous conveying of the scrap aluminum;

[0103] S23, monitor the temperature around the feed channel in real time, adjust the flow and temperature of the coolant through the intelligent liquid cooling system to protect the equipment;

[0104] S24. Use a machine vision system to identify the shape of the scrap aluminum and automatically adjust the scrap aluminum guide path based on the size and shape of the scrap aluminum to ensure that the scrap aluminum enters the predetermined area smoothly.

[0105] Sensors installed at key positions of the feeding device can monitor the temperature, weight and position of scrap aluminum in real time and provide accurate data feedback. Ensuring the transparency and controllability of the feeding process helps to detect and solve problems in a timely manner and avoid failures or equipment damage caused by excessive temperature or uneven weight distribution. Through real-time monitoring, ensure that the state of scrap aluminum remains stable throughout the entire conveying process. Improve feeding efficiency and quality, reduce deviations and errors in the conveying process, and ensure that scrap aluminum enters the molten pool smoothly. Ensure the uniformity and continuity of scrap aluminum during the conveying process by dynamically adjusting the conveying speed and the frequency of the vibrator. Avoid blockage or accumulation of scrap aluminum during the conveying process, improve conveying efficiency, ensure that scrap aluminum is evenly distributed in the molten pool, and improve the melting effect. By adjusting the vibration frequency and conveying speed, reduce the friction and loss of scrap aluminum during the conveying process. By real-time monitoring the temperature around the feeding channel, the intelligent liquid cooling system can adjust the flow and temperature of the coolant according to temperature changes to ensure that the equipment works within a suitable temperature range. Protect the feeding device and conveying equipment, avoid equipment damage caused by high temperature, and improve the safety and stability of the equipment. The machine vision system can identify the shape and size of scrap aluminum and automatically adjust the guide path according to the identification results to ensure that the scrap aluminum enters the predetermined area smoothly. It improves the intelligence and automation of the feeding process, reduces manual intervention, and improves the efficiency and accuracy of transportation.

[0106] like Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further defines:

[0107] The specific steps of step S3 are as follows:

[0108] S31, using a multi-point laser scanner to scan the surface of the aluminum liquid in the molten pool in real time to accurately locate the vortex position;

[0109] S32. Install an intelligent control valve at the discharge port, adjust the discharge speed and flow rate according to the algorithm-optimized parameters to ensure the formation of a stable vortex, and use a machine learning algorithm to analyze historical data to optimize the discharge speed, angle, and flow rate to ensure the adsorption force and stability of the vortex;

[0110] S33, install flow rate sensor, monitor aluminum liquid flow rate in real time, feed back data to control system, and dynamically adjust discharging parameters;

[0111] S34, analyzing the smoke composition at the inlet of the exhaust channel in real time and adjusting the feeding speed;

[0112] S35. Monitor the pressure at the outlet of the exhaust duct, dynamically adjust the fan speed and power, and maintain the negative pressure in the exhaust duct.

[0113] The multi-point laser scanner can scan the surface of the aluminum liquid in the molten pool in real time, providing high-precision surface shape and vortex position data. Providing accurate vortex position information helps to optimize the location and time of scrap aluminum delivery, improve the adsorption efficiency of scrap aluminum, and ensure that scrap aluminum is quickly integrated into the aluminum liquid. Real-time scanning and data feedback enable operators to grasp the status of the molten pool in real time and adjust operating parameters in time. The intelligent control valve can dynamically adjust the discharge speed and flow rate according to the parameters optimized by the algorithm to ensure the stability of the vortex. Ensure the stability of vortex formation and maintenance, improve the adsorption and integration efficiency of scrap aluminum, reduce scrap aluminum retention and dispersion, and improve the overall melting effect. Use machine learning algorithms to analyze historical data and continuously optimize the discharge speed, angle and flow parameters. The flow rate sensor can monitor the flow rate of aluminum liquid in real time and feed the data back to the control system. Providing accurate flow rate data helps to dynamically adjust the discharge parameters, ensure the stability of the discharge speed and flow rate, and improve the fluidity and uniformity of aluminum liquid. By real-time analysis of the flue gas composition at the inlet of the exhaust channel, key data in the scrap aluminum feeding process are provided. According to the changes in flue gas composition, the feeding speed is dynamically adjusted to ensure the balance and stability of the feeding process, reduce harmful components in flue gas emissions, and improve environmental friendliness. The feeding speed is adjusted in real time to ensure that scrap aluminum enters the molten pool at an appropriate speed and quantity, avoiding temperature and pressure fluctuations in the molten pool caused by excessive feeding. By monitoring the pressure at the outlet of the exhaust channel, real-time data on the operating status of the exhaust system is provided. According to the pressure data, the speed and power of the fan are dynamically adjusted to ensure that the negative pressure of the exhaust channel is maintained within the set range, thereby improving the stability and efficiency of the exhaust system.

[0114] like Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further defines:

[0115] The specific steps of step S4 are as follows:

[0116] S41, monitor the pressure in the exhaust duct and feed it back to the fan controller, and use a closed-loop control algorithm to automatically adjust the fan operating parameters to ensure a stable negative pressure environment;

[0117] S42. Install particle sensors at the inlet and outlet of the cyclone separator to detect the concentration of particulate matter in the flue gas in real time and optimize the separation effect;

[0118] S43, using historical data and real-time sensor data, continuously optimize the working parameters of the cyclone separator through machine learning algorithms to improve separation efficiency;

[0119] S44. Install an intelligent controller at the gas nozzle to automatically adjust the nozzle opening and injection angle according to the flue gas composition and temperature to optimize combustion efficiency;

[0120] S45. Monitor and control the mixing ratio of flue gas and fuel gas in real time to ensure stable combustion.

[0121] Monitor the pressure data in the exhaust channel in real time, and feed the data back to the fan controller through a closed-loop control algorithm. Ensure that a stable negative pressure environment is maintained in the exhaust channel to avoid the impact of pressure fluctuations on the system and improve the stability and efficiency of the system operation. Automatically adjust the operating parameters of the fan, such as speed and power, according to the pressure changes. Dynamically optimize the fan operation to ensure the continuity and stability of the exhaust process, improve the working efficiency of the fan, and extend the service life of the equipment. Install particle sensors at the inlet and outlet of the cyclone separator to detect the concentration of particulate matter in the flue gas in real time. Monitor the concentration of particulate matter before and after separation and provide accurate data, which helps to evaluate and optimize the separation effect of the cyclone separator and ensure the separation efficiency. Dynamically adjust the working parameters of the cyclone separator according to the real-time monitoring data. Improve the efficiency of the separator, reduce the residual particulate matter in the flue gas, and improve the environmental friendliness and working efficiency of the system. Combine historical data and real-time sensor data, and use machine learning algorithms to analyze and optimize the working parameters of the cyclone separator. Realize intelligent optimization of separator parameters, improve separation efficiency and stability, reduce manual intervention, and improve the adaptive ability of the system. Through machine learning algorithms, continuously learn and improve the operating mode of the cyclone separator. Continuously improve separation efficiency, adapt to the operation requirements under different working conditions, and improve the overall performance and work efficiency of the equipment. Install an intelligent controller at the gas nozzle to monitor the flue gas composition and temperature in real time, and automatically adjust the nozzle opening and injection angle. Optimize the combustion process, improve combustion efficiency, reduce fuel consumption and harmful emissions, and improve the economy and environmental friendliness of the system. Monitor the mixing ratio of flue gas and gas in real time, and use the intelligent control system to dynamically adjust the mixing ratio. Ensure the optimal mixing ratio of gas and flue gas, ensure the stability and efficiency of the combustion process, and reduce energy loss and harmful emissions caused by incomplete combustion.

[0122] like Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further defines:

[0123] After step S4, there are the following steps:

[0124] S5. When explosion risk is detected, the explosion relief port of the cyclone separator is automatically opened to release pressure.

[0125] During the operation of the equipment, by monitoring and analyzing data, when an explosion risk is detected, the system automatically opens the explosion vent of the cyclone separator to release the internal pressure. It provides important safety protection measures to eliminate or reduce the risk of explosion in a timely manner and protect the safety of equipment and operators. The automatic opening of the explosion vent can effectively release the accumulated pressure and reduce the possibility of explosion. It responds quickly at critical moments to prevent explosions caused by excessive pressure and protect the safety of equipment and the surrounding environment.

[0126] like Fig. 9 As shown, in addition to the features of the above embodiments, this embodiment further defines:

[0127] The specific steps of step S5 are as follows:

[0128] S51. Install temperature sensors and combustible gas sensors at the air inlet, air outlet and separation chamber of the cyclone separator to monitor the flue gas temperature and the combustible gas concentration in the flue gas in real time, and install a pressure sensor in the separation chamber of the cyclone separator to monitor the pressure in the separation chamber in real time;

[0129] S52, configuring an automatic cooling system, when the temperature sensor detects that the flue gas temperature exceeds a preset threshold, automatically starting the cooling system to reduce the temperature of the cyclone separator;

[0130] S53, using the intelligent controller to dynamically adjust the operating parameters of the cooling system according to the temperature sensor data to ensure that the temperature is maintained within a safe range;

[0131] S54. Based on the data from the combustible gas sensor and the pressure sensor, when it is detected that the parameters exceed the pre-examination value, the explosion relief vent is automatically opened to release the pressure.

[0132] Temperature sensors and combustible gas sensors, as well as pressure sensors, are installed at the air inlet, air outlet and separation chamber of the cyclone separator to monitor the temperature of the flue gas, the concentration of combustible gas and the pressure in the separation chamber in real time. Comprehensive flue gas status monitoring is provided to help timely identify potential safety risks, such as overheating, incomplete combustion or abnormal pressure, and take corresponding measures to ensure the safety of equipment and operators. An automatic cooling system is configured. When the temperature sensor detects that the flue gas temperature exceeds the preset threshold, the system automatically starts the cooling system to reduce the temperature of the cyclone separator. In the case of abnormal temperature, the separator temperature is reduced in time to effectively prevent equipment damage or safety problems caused by overheating and extend the service life of the equipment. The intelligent controller is used to dynamically adjust the operating parameters of the cooling system according to the temperature sensor data to ensure that the flue gas temperature is always maintained within a safe range. The system's adaptability and responsiveness are improved to ensure that a safe working environment can be maintained under various operating conditions, reducing the need for equipment maintenance and operator intervention. When the combustible gas sensor and pressure sensor detect parameters that exceed the preset value, the system automatically opens the explosion vent of the cyclone separator to release the internal pressure. Reliably prevent and respond to potential explosion risks, protect the safety of equipment, environment and operators, and avoid accidents and losses that may be caused by pressure accumulation.

[0133] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0134] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A waste heat recovery method for a high-efficiency waste heat recovery device, characterized in that: The high-efficiency waste heat recovery equipment comprises: A side well furnace (1), wherein the side well furnace (1) is provided with a molten pool (101), the side well furnace (1) is provided with a discharge port (102) connected to the molten pool (101), the side well furnace (1) is provided with an aluminum material feed channel (103) and an exhaust channel (104), and the aluminum material feed channel (103) and the exhaust channel (104) are connected to the molten pool (101); A feeding device (2), the feeding device (2) being in communication with the aluminum material feeding channel (103), and the feeding device (2) being used for supplying scrap aluminum; A cyclone separator (3), the cyclone separator (3) being provided with a separation chamber (301), the cyclone separator (3) being provided with an air inlet (302), an air outlet (303) and a slag discharge port (304) which are communicated with the separation chamber, the air inlet (302) being communicated with the exhaust passage (104); a fan (4), the fan (4) being in communication with the air outlet (303) of the cyclone separator (3); The waste heat recovery method of the high-efficiency waste heat recovery equipment comprises the following steps: S1. Open the discharge port of the side well furnace and discharge the molten aluminum liquid at the discharge port; S2, conveying the scrap aluminum into the aluminum material feeding channel through the feeding device, and putting the scrap aluminum into the molten pool in an area corresponding to the discharge port; S3. The scrap aluminum put into the molten pool will fall into the vortex formed in the molten pool when discharging, and will be quickly sucked into the molten aluminum liquid. The substances attached to the scrap aluminum will be quickly vaporized, and the vaporized substances will become smoke and rise into the exhaust channel; S4, the fan generates negative pressure, and the flue gas generated in step S3 is extracted from the exhaust channel. The extracted flue gas is separated by a cyclone separator, and large particles in the flue gas are separated. The remaining flue gas is transported by the fan to the gas nozzle for reuse; The specific steps of step S3 are as follows: S31, using a multi-point laser scanner to scan the surface of the aluminum liquid in the molten pool in real time to accurately locate the vortex position; S32. Install an intelligent control valve at the discharge port, adjust the discharge speed and flow rate according to the algorithm-optimized parameters to ensure the formation of a stable vortex, and use a machine learning algorithm to analyze historical data to optimize the discharge speed, angle, and flow rate to ensure the adsorption force and stability of the vortex; S33, install flow rate sensor, monitor aluminum liquid flow rate in real time, feed back data to control system, and dynamically adjust discharging parameters; S34, analyzing the smoke composition at the inlet of the exhaust channel in real time and adjusting the feeding speed; S35. Monitor the pressure at the outlet of the exhaust duct, dynamically adjust the fan speed and power, and maintain the negative pressure in the exhaust duct.

2. The waste heat recovery method of the high-efficiency waste heat recovery equipment according to claim 1, characterized in that: The cyclone separator (3) is also provided with an explosion discharge port (305); And / or the number of the cyclone separators (3) is multiple, and the multiple cyclone separators (3) are connected in sequence.

3. The waste heat recovery method of the high-efficiency waste heat recovery equipment according to claim 1, characterized in that: The discharge port (102) is located at the bottom of the side well furnace (1), the aluminum material feeding channel (103) is located at the side of the side well furnace (1) and is located on a side adjacent to the discharge port (102), and the exhaust channel (104) is arranged opposite to the area where the discharge port (102) is located.

4. The waste heat recovery method of the high-efficiency waste heat recovery equipment according to claim 1, characterized in that: The specific steps of step S1 are as follows: S11. Install multiple temperature sensors inside the side shaft furnace and at the discharge port to monitor the temperature at different locations in real time to ensure that the molten aluminum reaches a suitable temperature. At the same time, monitor the liquid level of the aluminum and provide real-time data. S12, receiving information fed back by multiple temperature sensors and liquid level information; S13, through the algorithm to analyze the temperature sensor data, automatically adjust the heating power to ensure the constant temperature of the aluminum liquid, adjust the discharge speed and feed rate in real time, and ensure that the liquid level in the molten pool is always within the pre-approved range; S14, adjust the discharging speed and direction in real time, optimize the vortex effect, and ensure that the scrap aluminum is quickly absorbed into the molten aluminum liquid.

5. The waste heat recovery method of the high-efficiency waste heat recovery equipment according to claim 4, characterized in that: The step S14 is followed by the following steps: S15, combining the information fed back by multiple temperature sensors and the liquid level information, calculating through an intelligent algorithm, automatically shutting down and closing the discharge port when an abnormal situation is detected; S16. Trigger different levels of alarms according to the severity of the problem and notify the operator in time; S17, using the information fed back by multiple temperature sensors and liquid level information to perform data analysis, monitor the equipment status in real time, and predict potential failures; S18. Based on the prediction results, schedule maintenance work in advance to reduce downtime and improve system reliability.

6. The waste heat recovery method of the high-efficiency waste heat recovery equipment according to claim 1, characterized in that: The specific steps of step S4 are as follows: S41, monitor the pressure in the exhaust duct and feed it back to the fan controller, and use a closed-loop control algorithm to automatically adjust the fan operating parameters to ensure a stable negative pressure environment; S42. Install particle sensors at the inlet and outlet of the cyclone separator to detect the concentration of particulate matter in the flue gas in real time and optimize the separation effect; S43, using historical data and real-time sensor data, continuously optimize the working parameters of the cyclone separator through machine learning algorithms to improve separation efficiency; S44. Install an intelligent controller at the gas nozzle to automatically adjust the nozzle opening and injection angle according to the flue gas composition and temperature to optimize combustion efficiency; S45. Monitor and control the mixing ratio of flue gas and fuel gas in real time to ensure stable combustion.

7. The waste heat recovery method of the high-efficiency waste heat recovery equipment according to claim 1, characterized in that: The step S4 is followed by the following steps: S5. When explosion risk is detected, the explosion relief port of the cyclone separator is automatically opened to release pressure.

8. The waste heat recovery method of the high-efficiency waste heat recovery equipment according to claim 7, characterized in that: The specific steps of step S5 are as follows: S51. Install temperature sensors and combustible gas sensors at the air inlet, air outlet and separation chamber of the cyclone separator to monitor the flue gas temperature and the combustible gas concentration in the flue gas in real time, and install a pressure sensor in the separation chamber of the cyclone separator to monitor the pressure in the separation chamber in real time; S52, configuring an automatic cooling system, when the temperature sensor detects that the flue gas temperature exceeds a preset threshold, automatically starting the cooling system to reduce the temperature of the cyclone separator; S53, using the intelligent controller to dynamically adjust the operating parameters of the cooling system according to the temperature sensor data to ensure that the temperature is maintained within a safe range; S54. Based on the data from the combustible gas sensor and the pressure sensor, when it is detected that the parameters exceed the pre-examination value, the explosion relief vent is automatically opened to release the pressure.

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