Waste wind power blade high-temperature plasma recovery system and device based on AI closed-loop control

Abstract

The invention relates to the technical field of solid waste resource utilization, in particular to a waste wind power blade high-temperature plasma recovery system and device based on AI closed-loop control, and the system comprises a raw material pretreatment module which is used for receiving waste wind power blades and carrying out crushing and drying treatment on the waste wind power blades to obtain pretreated materials; the high-temperature plasma cracking module is connected with the raw material pretreatment module and is used for receiving the pretreated material and cracking the pretreated material into combustible gas and solid residues; comprising a high-temperature plasma reaction chamber, a plasma generating device, a feeding device, a reaction chamber monitoring sensor group and an AI control unit, the gas-solid separation and condensation module is connected with an outlet of the high-temperature plasma cracking module, receives the combustible gas and the solid residues, performs gas-solid separation on the combustible gas and the solid residues, and condenses and recovers the combustible gas; and the tail gas purification module is connected with a gas outlet of the gas-solid separation and condensation module.

Description

Technical Field

[0001] This invention relates to the technical field of solid waste resource utilization, and in particular to a high-temperature plasma recovery system and device for waste wind turbine blades based on AI closed-loop control. Background Technology

[0002] With the rapid growth of global wind power installed capacity, the amount of waste wind turbine blades generated continues to increase. Currently, the traditional methods for disposing of waste wind turbine blades are mainly landfill and mechanical crushing, but their inherent defects are becoming increasingly apparent. Landfill disposal not only requires a large amount of land resources, but wind turbine blades are mostly made of composite materials such as glass fiber reinforced resin and carbon fiber reinforced resin. These materials are chemically stable and have a degradation cycle of hundreds of years in the natural environment, which can easily cause long-term environmental hazards such as soil pollution and groundwater seepage pollution. At the same time, the initial investment in landfill site selection and seepage prevention is huge, and it is difficult to promote on a large scale in densely populated areas due to land planning restrictions. Although mechanical crushing can break the blades into fine particles, it can only achieve "volume reduction" rather than "resource recovery". The added value of the mixture of crushed fiber particles and resin debris is extremely low, and it is mostly used as roadbed filler or building aggregate, with a resource utilization rate of less than 5%. More importantly, the crushing process generates a large amount of ultrafine fiber dust and volatile organic compounds. Without effective environmental protection measures, it can easily cause dust pollution and respiratory health risks, causing secondary harm to operators and the surrounding environment.

[0003] To overcome the limitations of traditional methods, the industry has attempted to use conventional pyrolysis technology to treat waste wind turbine blades. However, its technological shortcomings still make it difficult to meet the dual requirements of resource recovery and environmental protection. Conventional pyrolysis technology relies on external heat sources such as electric heating and gas heating, resulting in low heat transfer efficiency and uneven temperature distribution in the reaction system. This leads to incomplete pyrolysis of the resin matrix in the blade composite material, easily generating heavy tar and stubborn organic residues. This not only reduces the recovery rate of target products such as combustible gases and carbon fibers but also makes it difficult to meet the requirements of resource utilization and environmental emissions. Therefore, there is an urgent need for a highly efficient, automated, and environmentally friendly waste wind turbine blade treatment technology. Summary of the Invention

[0004] This invention provides a high-temperature plasma recovery system and device for waste wind turbine blades based on AI closed-loop control, which can avoid secondary pollution problems after treatment and improve the recovery rate of target products, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control, comprising: The raw material pretreatment module is used to receive waste wind turbine blades, crush and dry the waste wind turbine blades to obtain pretreated materials; The high-temperature plasma pyrolysis module is connected to the raw material pretreatment module and is used to receive pretreated materials and pyrolyze them into combustible gases and solid residues; it includes a high-temperature plasma reaction chamber, a plasma generator, a feeding device, a reaction chamber monitoring sensor group, and an AI control unit. The gas-solid separation and condensation module is connected to the outlet of the high-temperature plasma pyrolysis module, receives combustible gas and solid residue, performs gas-solid separation on the combustible gas and solid residue, and condenses and recovers the combustible gas. The exhaust gas purification module is connected to the gas outlet of the gas-solid separation and condensation module and is used to purify the residual exhaust gas after separation.

[0006] In conjunction with the first aspect, in one possible design, the AI ​​control unit is signal-connected to the reaction chamber monitoring sensor group, the plasma generator, and the feeding device, and is used to dynamically adjust the plasma power of the plasma generator and the feeding rate of the feeding device based on real-time data fed back by the reaction chamber monitoring sensor group; the gas-solid separation and condensation module and the exhaust gas purification module are both signal-connected to the AI ​​control unit, and the AI ​​control unit optimizes the working status in real time based on the system operating parameters.

[0007] In conjunction with the first aspect, in one possible design, the raw material pretreatment module includes a twin-shaft shredder and a drum dryer, the twin-shaft shredder and the drum dryer being connected in sequence via a sealed conveyor belt; the twin-shaft shredder is equipped with high-strength alloy blades and a dual-motor drive structure.

[0008] In conjunction with the first aspect, in one possible design, the high-temperature plasma reaction chamber adopts a composite ceramic lining structure, and the plasma generating device is a dual-electrode ring discharge structure with the electrode material being tungsten-copper alloy, and the two electrodes are arranged in a ring symmetrical manner.

[0009] In conjunction with the first aspect, in one possible design, the feeding device is a stainless steel spiral blade structure, the feeding channel is equipped with a sealing bushing, and it is driven by a servo motor.

[0010] In conjunction with the first aspect, in one possible design, the reaction chamber monitoring sensor group includes a temperature sensor, a pressure sensor, an online gas analyzer, and a flow sensor.

[0011] In conjunction with the first aspect, in one possible design, the AI ​​control unit incorporates a long short-term memory neural network and a model predictive control algorithm.

[0012] In conjunction with the first aspect, in one possible design, the gas-solid separation and condensation module includes a multi-stage cyclone separator, an electrostatic deposition module, a multi-stage condenser, and a replaceable high-efficiency filter.

[0013] In conjunction with the first aspect, in one possible design, the exhaust gas purification module includes a photocatalytic reaction tower, a spray scrubbing tower, and an activated carbon adsorption module.

[0014] Secondly, the present invention also provides a high-temperature plasma recovery device for waste wind turbine blades based on AI closed-loop control, comprising: A dual-shaft shredder, installed in the first process, is used to crush waste blades. A drum dryer, connected in sequence to the twin-shaft shredder via a sealed conveyor belt, is used to dry the crushed material. A feeding device is connected to the output end of the drum dryer. The feeding device is equipped with a sealing bushing and is used to convey the material to be dried. A high-temperature plasma reaction chamber, connected to the output end of the feeding device, is used to carry the incoming dry material; A plasma generator is installed on the high-temperature plasma reaction chamber and is used to generate a plasma arc region by excitation with a high-voltage power supply to heat the dry material inside the high-temperature plasma reaction chamber, causing the material to decompose. A reaction chamber monitoring sensor group is installed in the high-temperature plasma reaction chamber to monitor the real-time parameters of the high-temperature plasma reaction chamber; A multi-stage cyclone separator is connected to the outlet of the high-temperature plasma reaction chamber to receive combustible gas and solid residue after pyrolysis and to perform gas-solid separation on the combustible gas and solid residue. An electrostatic deposition module, located in the subsequent process of the multi-stage cyclone separator, is used to capture fiber particles with a diameter of less than 1 μm in the airflow. A multi-stage condenser is installed in the subsequent process of the electrostatic deposition module. When the combustible gas generated by pyrolysis flows through the multi-stage condenser, the water vapor and heavy hydrocarbon components in it are condensed into liquid and collected. The uncondensed combustible gas continues to be transported to the next stage. A replaceable high-efficiency filter is installed at the rear end of a multi-stage condenser to filter uncondensed combustible gases and obtain exhaust gas. A photocatalytic reaction tower, connected to the multi-stage condenser, is used to degrade volatile organic compounds (VOCs) in the filtered exhaust gas. A spray scrubbing tower, together with the photocatalytic reaction tower, is used to absorb acidic gases and residual particulate matter in the exhaust gas; An activated carbon adsorption module is located at the rear end of the spray scrubbing tower. After the exhaust gas is pre-treated, it flows through the activated carbon adsorption module to adsorb residual organic matter and odors. The exhaust gas outlet of the activated carbon adsorption module is equipped with an exhaust gas composition analyzer and a particulate matter concentration monitor. The AI ​​control unit is connected to the dual-shaft shredder, drum dryer, feeding device, high-temperature plasma reaction chamber, plasma generator, reaction chamber monitoring sensor group, multi-stage cyclone separator, electrostatic deposition module, multi-stage condenser, photocatalytic reaction tower, and spray scrubbing tower.

[0015] The technical solution of this invention can achieve the following technical effects: Compared to the long-term pollution from landfilling and the low-value-added volume reduction from mechanical pulverization, this method achieves deep resource utilization of waste blades through high-temperature plasma pyrolysis, converting composite materials into high-purity combustible gases and reusable solid residues, with a resource utilization rate far exceeding that of mechanical pulverization. Simultaneously, the closed-loop control throughout the entire process and multi-stage exhaust gas purification prevent secondary pollution problems such as dust pollution from mechanical pulverization and tar emissions from conventional pyrolysis, meeting environmental standards. Problems such as incomplete pyrolysis and parameter rigidity caused by reliance on external heat sources in conventional pyrolysis are solved by combining AI closed-loop control with high-temperature plasma technology, where the plasma provides the high temperature to ensure the pulverization process is completed. The lipid matrix is ​​completely pyrolyzed, avoiding the formation of heavy tar. The AI ​​control unit dynamically adjusts the power and feed rate based on real-time data from the reaction chamber, adapting to the material differences of different batches of blades to ensure stable pyrolysis efficiency and thus improve the recovery rate of the target product. The system achieves automatic control of parameters throughout the entire process through the AI ​​control unit, eliminating the need for manual intervention in raw material transfer, parameter adjustment, and other aspects. This reduces labor intensity and avoids human error. At the same time, the high-efficiency energy concentration characteristics of high-temperature plasma and the precise matching of AI dynamic adjustment can reduce redundant energy consumption. Combined with the reuse of heat energy recovered by condensation, the overall energy utilization rate can be improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a high-temperature plasma recovery system for waste wind turbine blades based on AI closed-loop control. Figure 2 This is a schematic diagram of the recycling process of the present invention. Detailed Implementation

[0018] This application will now be described with reference to the accompanying drawings.

[0019] like Figure 1As shown, the present invention provides a high-temperature plasma recovery system for waste wind turbine blades based on AI closed-loop control, which specifically includes the following steps: The raw material pretreatment module is used to receive waste wind turbine blades, crush and dry the waste wind turbine blades to obtain pretreated materials; The high-temperature plasma pyrolysis module is connected to the raw material pretreatment module and is used to receive pretreated materials and pyrolyze them into combustible gases and solid residues; it includes a high-temperature plasma reaction chamber, a plasma generator, a feeding device, a reaction chamber monitoring sensor group, and an AI control unit. The gas-solid separation and condensation module is connected to the outlet of the high-temperature plasma pyrolysis module, receives combustible gas and solid residue, performs gas-solid separation on the combustible gas and solid residue, and condenses and recovers the combustible gas. The exhaust gas purification module is connected to the gas outlet of the gas-solid separation and condensation module and is used to purify the residual exhaust gas after separation.

[0020] In this embodiment, compared to the long-term pollution from landfilling and the low added value and volume reduction from mechanical pulverization, this method achieves deep resource utilization of waste blades through high-temperature plasma pyrolysis, converting composite materials into high-purity combustible gas and reusable solid residue, with a resource utilization rate far exceeding that of mechanical pulverization. Simultaneously, the closed-loop control throughout the entire process and multi-stage exhaust gas purification avoid secondary pollution problems such as dust pollution from mechanical pulverization and tar emissions from conventional pyrolysis, meeting environmental standards. Problems such as incomplete pyrolysis and parameter rigidity caused by conventional pyrolysis relying on external heat sources are solved by combining AI closed-loop control with high-temperature plasma technology, where the plasma provides the high temperature... The system ensures complete pyrolysis of the resin matrix, preventing the formation of heavy tar. The AI ​​control unit dynamically adjusts the power and feed rate based on real-time data from the reaction chamber, adapting to the material differences of different batches of blades to ensure stable pyrolysis efficiency and thus improve the recovery rate of the target product. The system achieves automatic control of parameters throughout the entire process through the AI ​​control unit, eliminating the need for manual intervention in raw material transfer and parameter adjustment, which reduces labor intensity and avoids human error. At the same time, the high-efficiency energy concentration characteristics of high-temperature plasma and the precise matching of AI dynamic adjustment can reduce redundant energy consumption. Combined with the reuse of heat energy recovered by condensation, the overall energy utilization rate can be improved.

[0021] In some embodiments of the present invention, a raw material pretreatment module is used to receive waste wind turbine blades, crush and dry the waste wind turbine blades, and obtain pretreated materials. The raw material pretreatment module includes a twin-shaft shredder and a drum dryer, which are connected sequentially by a sealed conveyor belt to ensure no dust leakage during material transfer. The twin-shaft shredder is equipped with high-strength alloy blades with staggered tooth patterns and a dual-motor drive structure. The motor output power is matched to the crushing strength requirements of the blade composite material. The equipment has an adjustable speed range of 50-100 rpm. Based on the initial size and thickness of the waste wind turbine blades, the corresponding speed parameters are selected to cut the waste wind turbine blades into uniform small pieces of 10-20 cm, so that the material has a uniform particle size specification. The inner wall of the drum dryer is equipped with inclined guide plates at a 30° angle to the drum axis. The drum rotation speed is set to 15-20 rpm to ensure that the material is evenly dispersed and fully contacts the heat source within the drum. The dryer uses a hot air circulation heating method, with the hot air temperature controlled within the range of 150-200℃. The hot air generated by the hot air generator is evenly introduced into the drum through the guide pipe to exchange heat with the material. The residence time of the material in the drum is controlled in conjunction with the conveyor belt feed rate and the drum rotation speed. The circulation drying process lasts for 20-30 minutes, allowing the moisture in the material to be converted into water vapor through heat exchange and discharged through the exhaust port at the top of the dryer. The moisture content of the processed material is controlled below 5%, avoiding the impact of moisture on the reaction temperature stability during the high-temperature plasma pyrolysis process and reducing the additional energy consumed by moisture evaporation during the pyrolysis process.

[0022] In this embodiment, the high-strength alloy blades and dual-motor drive structure of the dual-shaft shredder can handle the composite material characteristics of wind turbine blades, ensuring precise cutting during the shredding process and avoiding excessive wear and material waste. Simultaneously, the adjustable speed range allows for optimized processing of blades of different sizes and thicknesses, cutting waste wind turbine blades into uniform small pieces of 10-20 cm for subsequent processing. The sealed conveyor belt prevents dust leakage during material transport, providing a safer working environment for operators and reducing environmental pollution. The drum dryer, combined with inclined guide plates and appropriate drum speed, ensures uniform dispersion of materials during drying, maximizing contact with hot air and improving heat exchange efficiency. The hot air circulation system quickly removes moisture from the materials, keeping the moisture content below 5%, ensuring temperature stability during the subsequent high-temperature plasma pyrolysis process. The pre-treated materials possess physical properties suitable for the subsequent high-temperature pyrolysis process. With controllable moisture content, the pyrolysis process is more efficient, reducing chemical instability caused by moisture, thereby improving the purity and yield of the final product.

[0023] In some embodiments of the present invention, for the high-temperature plasma pyrolysis module, the pretreated material is conveyed to the high-temperature plasma pyrolysis module through a feeding device. The feeding rate of the feeding device is linked and matched with the operating parameters of the twin-shaft shredder and the drum dryer to ensure a continuous and stable material supply and avoid fluctuations in the pyrolysis reaction conditions due to material accumulation or supply interruption. The high-temperature plasma pyrolysis module is centered on a high-temperature plasma reaction chamber, and is equipped with a plasma generator, a feeding device, a reaction chamber monitoring sensor group, and an AI control unit. All components are linked in a closed loop through signal lines and pipelines. The high-temperature plasma reaction chamber adopts a high-temperature resistant ceramic lining structure, and the lining material is selected as zirconium oxide-alumina composite ceramic, which can withstand temperatures of not less than 3500℃. The plasma generator adopts a dual-electrode ring discharge structure with tungsten-copper alloy as the electrode material. The two electrodes are arranged symmetrically in a ring on the reaction chamber. The electrodes are excited by a high-voltage power supply to generate a plasma arc region. The temperature of the arc region is stable above 2600℃, providing a high-temperature environment for the complete decomposition of the resin matrix in the blade composite material. The plasma generator is connected to the AI ​​control unit and receives adjustment commands to achieve continuous power adjustment. The feeding device is installed at the feed inlet of the reaction chamber and uses stainless steel spiral blades. The feeding channel is equipped with a sealing bushing to ensure that the oxygen-free environment inside the reaction chamber is not damaged. The feeding device is driven by a servo motor, and the motor speed is linearly related to the feeding rate. The servo motor controller receives signals from the AI ​​control unit to achieve precise control of the feeding rate. The reaction chamber monitoring sensor group includes temperature sensors, pressure sensors, an online gas analyzer, and a flow sensor; The temperature sensor uses a K-type high-temperature thermocouple with a measurement range of 0-3500℃ and an accuracy of ±0.5℃. It is installed on the inner wall of the reaction chamber, the core of the arc zone, and the discharge end to collect temperature data of different areas in the reaction chamber in real time. The pressure sensor has a range of 0-10 bar and an accuracy of ±0.1 bar. It is installed in the middle of the reaction chamber and the gas circulation pipeline to monitor the stability of pressure and gas flow. The online gas analyzer uses infrared spectroscopy detection technology with a detection accuracy of ±1%. It is installed at the outlet of the reaction chamber and the inlet of the tail gas treatment unit and can detect the content of H2, CO, CH4 and impurity gases in real time. The flow sensors are accurately installed in the feed channel and the gas circulation pipeline of the reaction chamber to monitor the feed rate and gas flow rate data, respectively. All sensors acquire data at a frequency of 1-5 times per second. The acquired data is transmitted to the AI ​​control unit via shielded cable, and noise reduction and calibration are performed using a Kalman filter algorithm during transmission. The AI ​​control unit is based on an ARM Cortex-M7 microprocessor with a processing frequency of 400MHz and a 1GB data cache. It incorporates a long short-term memory neural network and a model predictive control algorithm. The long short-term memory neural network model is built based on historical operating data, including feed characteristics, reaction temperature, pressure, gas composition, and product recovery rate. It can predict the pyrolysis effect under different power and feed rate combinations based on real-time sensor data. The model predictive control algorithm combines real-time data with preset control thresholds to calculate the optimal control parameters and output adjustment commands. The preset control thresholds include reaction chamber temperature, pressure, gas composition, particulate matter concentration, feed rate, and plasma power. When the online gas analyzer detects that the H2 content is below 35% and the CO content is below 25%, the AI ​​control unit sends a command to the feeding device to reduce the feeding rate, and simultaneously sends a command to the plasma generator to increase the plasma power, thereby extending the residence time of the material in the reaction chamber and promoting complete pyrolysis of the resin matrix. When the CH4 content is detected to be above 10%, the same adjustment logic is executed to suppress the generation of incompletely pyrolyzed products. When the temperature sensor detects that the reaction chamber temperature is above 3000℃, the AI ​​control unit reduces the plasma power and increases the cooling gas flow rate to prevent damage to the lining of the reaction chamber due to high temperature. When the temperature is below 1000℃, the plasma power is increased and the feeding rate is reduced to ensure that the pyrolysis reaction proceeds normally. When the pressure sensor detects that the reaction chamber pressure is above 5 bar, the AI ​​control unit triggers the emergency exhaust valve to open and simultaneously suspends feeding until the pressure returns to the set range.

[0024] In this embodiment, the feeding rate of the feeding device is linked and matched with the operating parameters of the twin-shaft shredder and the drum dryer, ensuring the stability of material supply and preventing fluctuations in the pyrolysis reaction conditions due to material accumulation or supply interruption, thereby improving the overall system stability. The reaction chamber uses a high-temperature resistant ceramic lining, capable of withstanding temperatures up to 3500℃, creating an ideal high-temperature environment for the complete pyrolysis of the resin matrix. The plasma generator can continuously generate high-temperature plasma, ensuring the thoroughness of the pyrolysis process. The AI ​​control unit can dynamically adjust the plasma power and feeding rate by collecting real-time data from sensors and utilizing the predictive capabilities of long short-term memory neural networks. Based on changes in reaction conditions, the AI ​​control system can achieve precise process control, optimize pyrolysis efficiency, and avoid pyrolysis caused by improper reaction conditions. Unpyrolyzed materials are generated; multiple sensors in the reaction chamber monitor the reaction status in real time and quickly feed the data back to the AI ​​control unit, ensuring that the system can respond quickly to various changes during operation and adjust reaction parameters in a timely manner to ensure the safety and efficiency of the pyrolysis process; through real-time detection of gas components such as H2, CO, and CH4, the AI ​​control unit can suppress the generation of incompletely pyrolyzed products, further improving gas purity and resource recovery rate, and optimizing the utilization efficiency of pyrolysis products; when the pressure and temperature in the reaction chamber exceed the set threshold, the AI ​​control system can automatically execute emergency measures to improve system safety and reduce the risk of equipment failure due to excessive pressure or temperature; based on different monitoring data, the system can quickly adjust reaction conditions to ensure the stable operation of the pyrolysis reaction, improve overall processing efficiency and reaction safety.

[0025] In some embodiments of the present invention, the gas-solid separation and condensation module is connected to the outlet of the high-temperature plasma pyrolysis module, receives combustible gas and solid residue, performs gas-solid separation on the combustible gas and solid residue, and condenses and recovers the combustible gas. The gas-solid separation and condensation module is arranged sequentially along the material flow direction, including a multi-stage cyclone separator, an electrostatic deposition module, a multi-stage condenser, and a replaceable high-efficiency filter. All components are connected by sealed pipes, and the module as a whole communicates with the AI ​​control unit to receive real-time adjustment commands. The multi-stage cyclone separator adopts a two-stage series structure. The air inlet of the separator is connected to the discharge port pipe of the high-temperature plasma pyrolysis module. The air inlet velocity is controlled at 15-25m / s. It uses centrifugal force to separate solid particles with a particle size greater than 10μm in the material. The second-stage separator further separates particles with a particle size of 1-10μm. The cumulative separation efficiency of the two stages is not less than 90%. A conical dust collection hopper is set at the bottom of the separator. An electric ash discharge valve is installed at the bottom of the dust collection hopper. The opening and closing frequency of the ash discharge valve is controlled by the AI ​​control unit according to the pressure change data inside the separator to ensure that the separated solid particles are discharged in time and avoid accumulation and blockage. The electrostatic deposition module is installed between the multi-stage cyclone separator and the multi-stage condenser. It adopts a plate electrode structure with titanium alloy electrode plates and a plate spacing of 10-15cm. A 5-15kV high-voltage DC current is applied to form an electric field. The electric field strength is adjusted by a high-voltage power controller. The controller receives signals from the AI ​​control unit and dynamically adjusts the voltage parameters based on the particulate matter concentration data fed back by the online gas analyzer to capture fiber particles with a diameter of less than 1μm in the airflow. The module shell is equipped with an insulating protective layer to prevent high-voltage leakage, and the interior is equipped with a removable dust collection plate for easy periodic cleaning of deposited particles. The multi-stage condenser adopts a three-stage series cooling structure, using industrial cooling water as the cooling medium. The first-stage condensation temperature is controlled at 100℃, the second at 0℃, and the third at -20℃. Temperature stability is achieved by precisely regulating the cooling medium flow rate through a temperature controller. The condenser is equipped with spiral heat exchange tubes made of copper-nickel alloy to increase the heat exchange area and improve condensation efficiency. When the combustible gas produced by pyrolysis flows through the heat exchange tubes, the water vapor and heavy hydrocarbon components condense into liquid upon cooling and are collected and discharged through a condensate tank at the bottom of the condenser. Uncondensed combustible gas continues to be transported. The cooling medium flow rate regulation of the condenser is linked with the AI ​​control unit to optimize the cooling effect based on gas flow and composition data, ensuring the purity of the combustible gas. The replaceable high-efficiency filter is installed at the rear end of the multi-stage condenser. It adopts a metal-based nanofiber mesh structure with a pore size of 0.1-0.5μm. It can withstand temperatures of not less than 300℃ and has corrosion resistance. The filter can be detached and installed via a flange structure, which is convenient for regular replacement and maintenance. Based on the gas composition and particulate matter concentration data fed back by the reaction chamber monitoring sensor group, as well as the real-time data from the differential pressure sensor and flow sensor within the module, the AI ​​control unit dynamically adjusts the inlet air velocity of the multi-stage cyclone separator, the electric field strength of the electrostatic deposition module, and the cooling medium flow rate of the multi-stage condenser to ensure stable gas-solid separation efficiency and combustible gas recovery effect, adapting to the dynamic operating conditions of the high-temperature plasma pyrolysis module.

[0026] In this embodiment, a structure combining a multi-stage cyclone separator and an electrostatic deposition module is employed to separate solid particles from combustible gases, ensuring the purity and quality of the gases. The multi-stage cyclone separator improves overall separation efficiency. The AI ​​control unit monitors gas composition, particulate matter concentration, and pressure changes within the module in real time, dynamically adjusting the inlet air velocity of the multi-stage cyclone separator, the electric field strength of the electrostatic deposition module, and the cooling medium flow rate of the multi-stage condenser. This ensures optimal separation and condensation under different operating conditions, improving system adaptability. The three-stage cooling structure of the multi-stage condenser enables precise control at different temperatures, ensuring efficient condensation of water vapor and heavy hydrocarbons, avoiding resource waste, and increasing the recovery rate of combustible gases. The module is equipped with an insulating protective layer and a removable dust collection plate, ensuring system safety and convenient maintenance, reducing the possibility of malfunctions during long-term operation. The replaceable high-efficiency filter uses high-temperature resistant and corrosion-resistant materials, supporting regular replacement and maintenance, thus extending the module's lifespan.

[0027] In some embodiments of the present invention, the exhaust gas purification module is connected to the gas outlet of the gas-solid separation and condensation module for purifying the residual exhaust gas after separation. The exhaust gas purification module is arranged in sequence along the airflow direction, consisting of a photocatalytic reaction tower, a spray scrubbing tower, and an activated carbon adsorption module. Each component is connected in series through a sealed pipe. The module is equipped with an exhaust gas component analyzer and a particulate matter concentration monitor. All detection data are transmitted to the AI ​​control unit in real time, and the AI ​​control unit regulates the operating parameters of each component. The photocatalytic reaction tower is made of stainless steel, with 3-5 layers of TiO2 catalyst support arranged from top to bottom. The support has a honeycomb ceramic structure. A 254nm ultraviolet light source is installed above the catalyst support, with the number of light sources matching the number of catalyst support layers. The intensity of the ultraviolet light is adjusted by a light source controller. When the exhaust gas enters the reaction tower and flows through the catalyst support, it undergoes a photocatalytic reaction with the TiO2 catalyst under ultraviolet light excitation, degrading volatile organic compounds (VOCs) in the exhaust gas. The light source controller is connected to an AI control unit and adjusts the ultraviolet light intensity based on the VOCs concentration data detected by the exhaust gas component analyzer to ensure that the VOCs degradation efficiency is not less than 95%. The spray-type scrubbing tower and the photocatalytic reaction tower are connected by a pipeline. The tower body is made of corrosion-resistant fiberglass. Two spray layers are installed inside the tower, each with multiple spiral spray heads, providing 360° full coverage. A storage tank at the bottom of the scrubbing tower stores a 5% NaOH solution as an absorbent. A corrosion-resistant pump then pumps the absorbent... 收The absorbent is delivered to the spray layer. After the exhaust gas enters the scrubbing tower, it comes into full contact with the sprayed NaOH solution, absorbing acidic gases such as SO2 and NOx, as well as residual particulate matter, from the exhaust gas. A level sensor and a concentration sensor are installed in the storage tank to monitor the absorbent level and concentration in real time. The data is transmitted to the AI ​​control unit. When the concentration is lower than the preset value, the control unit triggers the replenishment valve to open and replenish fresh NaOH solution. When the level is lower than the minimum threshold, a replenishment prompt is issued. The activated carbon adsorption module is installed at the rear end of the spray-type scrubbing tower. The module shell is made of stainless steel, and the interior is filled with high specific surface area activated carbon, with a specific surface area of ​​1000-1500 m². 2 / g, adsorption capacity 0.2g / g, filling amount set to 50-100kg according to the processing air volume; differential pressure sensors are installed at the front and rear ends of the activated carbon layer to monitor the adsorption saturation of the activated carbon; after the exhaust gas is pre-treated, it flows through the activated carbon layer, where residual organic matter and odors are adsorbed and removed; an exhaust gas composition analyzer and particulate matter concentration monitor are installed at the module outlet, the exhaust gas composition analyzer monitors VOCs, SO2, NO x The particulate matter concentration monitor uses laser scattering to monitor the particulate matter content in the exhaust gas. The AI ​​control unit receives data from the exhaust gas composition analyzer, particulate matter concentration monitor, and sensors of various components. Combined with overall system operating parameters, it dynamically adjusts the spray flow rate of the spray scrubber and the ultraviolet light intensity of the photocatalytic reaction tower. When SO2 or NO is detected... x Concentration exceeding 0.05 mg / m³ 3 Increase the spray flow rate when the particulate matter concentration exceeds 10 mg / m³. 3 At the same time, the linkage gas-solid separation and condensation modules adjust the separation parameters while maintaining a stable spray flow rate in the scrubbing tower; when the activated carbon layer pressure difference exceeds the preset threshold, an activated carbon replacement reminder is issued to ensure that the exhaust gas emissions meet the standards.

[0028] In this embodiment, the photocatalytic reaction tower utilizes a TiO2 catalyst under ultraviolet light excitation to effectively degrade volatile organic compounds (VOCs) in the exhaust gas, achieving a degradation efficiency of no less than 95%, thereby reducing the emission of harmful organic compounds in the exhaust gas and improving environmental protection levels. The spray scrubbing tower, through spraying a 5% NaOH solution to fully contact the exhaust gas, can absorb SO2 and NO in the exhaust gas. xThe system effectively removes acidic gases and residual particulate matter, reducing harmful gas pollution to the atmosphere. The AI ​​control unit dynamically adjusts the parameters of each component based on real-time monitoring data, such as the ultraviolet light intensity of the photocatalytic tower and the spray flow rate of the scrubbing tower. The intelligent control mechanism maintains the system in optimal working condition, improving purification efficiency. Through a particulate matter concentration monitor, the system can monitor the particulate matter content in the exhaust gas in real time, and when the concentration exceeds the set value, it will link the gas-solid separation and condensation modules to adjust and maintain the stable spray flow rate of the scrubbing tower. The activated carbon adsorption module can adsorb and remove residual organic matter and odors from the exhaust gas. The liquid level and concentration sensors in the module can monitor the state of the NaOH solution in real time and send prompts to the AI ​​control unit for replenishment when necessary.

[0029] like Figure 2 As shown, the present invention also provides a high-temperature plasma recovery device for waste wind turbine blades based on AI closed-loop control, specifically including: A dual-shaft shredder, installed in the first process, is used to crush waste blades. A drum dryer, connected in sequence to the twin-shaft shredder via a sealed conveyor belt, is used to dry the crushed material. A feeding device is connected to the output end of the drum dryer. The feeding device is equipped with a sealing bushing and is used to convey the material to be dried. A high-temperature plasma reaction chamber, connected to the output end of the feeding device, is used to carry the incoming dry material; A plasma generator is installed on the high-temperature plasma reaction chamber and is used to generate a plasma arc region by excitation with a high-voltage power supply to heat the dry material inside the high-temperature plasma reaction chamber, causing the material to decompose. A reaction chamber monitoring sensor group is installed in the high-temperature plasma reaction chamber to monitor the real-time parameters of the high-temperature plasma reaction chamber; A multi-stage cyclone separator is connected to the outlet of the high-temperature plasma reaction chamber to receive combustible gas and solid residue after pyrolysis and to perform gas-solid separation on the combustible gas and solid residue. An electrostatic deposition module, located in the subsequent process of the multi-stage cyclone separator, is used to capture fiber particles with a diameter of less than 1 μm in the airflow. A multi-stage condenser is installed in the subsequent process of the electrostatic deposition module. When the combustible gas generated by pyrolysis flows through the multi-stage condenser, the water vapor and heavy hydrocarbon components in it are condensed into liquid and collected. The uncondensed combustible gas continues to be transported to the next stage. A replaceable high-efficiency filter is installed at the rear end of a multi-stage condenser to filter uncondensed combustible gases and obtain exhaust gas. A photocatalytic reaction tower, connected to the multi-stage condenser, is used to degrade volatile organic compounds (VOCs) in the filtered exhaust gas. A spray scrubbing tower, together with the photocatalytic reaction tower, is used to absorb acidic gases and residual particulate matter in the exhaust gas; An activated carbon adsorption module is located at the rear end of the spray scrubbing tower. After the exhaust gas is pre-treated, it flows through the activated carbon adsorption module to adsorb residual organic matter and odors. The exhaust gas outlet of the activated carbon adsorption module is equipped with an exhaust gas composition analyzer and a particulate matter concentration monitor. The AI ​​control unit is connected to the dual-shaft shredder, drum dryer, feeding device, high-temperature plasma reaction chamber, plasma generator, reaction chamber monitoring sensor group, multi-stage cyclone separator, electrostatic deposition module, multi-stage condenser, photocatalytic reaction tower, and spray scrubbing tower.

[0030] In this embodiment, waste wind turbine blades first enter a dual-shaft shredder in the first process, where they are crushed into materials of suitable size. The crushed material is then conveyed to a drum dryer via a sealed conveyor belt, where it is dried to remove moisture. The dried material then enters a feeding device equipped with a sealing bushing to stably transport the dried material to the next stage. The material then enters a high-temperature plasma reaction chamber, where a plasma generator, activated by a high-voltage power supply, generates a plasma arc to heat the dried material, causing a pyrolysis reaction. A reaction chamber monitoring sensor group is installed in the chamber to monitor real-time parameters such as temperature and pressure, feeding the data back to the AI ​​control unit. The pyrolysis products then enter a multi-stage cyclone separator from the high-temperature plasma reaction chamber outlet. This separator separates the combustible gas from the solid residue. The separated gas then enters an electrostatic deposition module, which captures particles smaller than 1 μm from the gas stream. The fiber particles further purify the gas; the cracked combustible gas, after being treated by the electrostatic deposition module, flows through a multi-stage condenser, where water vapor and heavy hydrocarbon components condense into liquid and are collected, while the uncondensed combustible gas continues to be transported; the uncondensed combustible gas enters a replaceable high-efficiency filter installed at the end of the multi-stage condenser for filtration, obtaining relatively pure exhaust gas; the filtered exhaust gas enters a photocatalytic reaction tower, which degrades volatile organic compounds (VOCs) in the exhaust gas, reducing the content of harmful substances; the exhaust gas from the photocatalytic reaction tower enters a spray scrubbing tower, which absorbs acidic gases and residual particulate matter in the exhaust gas, further purifying the exhaust gas; after the pre-treatment, the exhaust gas flows through an activated carbon adsorption module installed at the end of the spray scrubbing tower, which adsorbs residual organic matter and odors, deeply purifying the exhaust gas; an exhaust gas component analyzer and a particulate matter concentration monitor installed at the outlet of the activated carbon adsorption module detect and analyze the treated exhaust gas; AI The control unit is connected to the twin-shaft shredder, drum dryer, feeding device, high-temperature plasma reaction chamber, plasma generator, reaction chamber monitoring sensor group, multi-stage cyclone separator, electrostatic deposition module, multi-stage condenser, photocatalytic reaction tower, and spray washing tower. Based on the data fed back from the reaction chamber monitoring sensor group, it adjusts the operating parameters of each device in real time to achieve closed-loop control of the entire recycling device, ensuring stable and efficient operation of the device.

[0031] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of the application as defined herein, and are to be considered as covering any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from its scope. Thus, if such modifications and modifications fall within the scope of this application and its equivalents, this application intends to include such modifications and modifications.

Claims

1. A high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control, characterized in that, include: The raw material pretreatment module is used to receive waste wind turbine blades, crush and dry the waste wind turbine blades to obtain pretreated materials; The high-temperature plasma pyrolysis module is connected to the raw material pretreatment module and is used to receive pretreated materials and pyrolyze them into combustible gases and solid residues; it includes a high-temperature plasma reaction chamber, a plasma generator, a feeding device, a reaction chamber monitoring sensor group, and an AI control unit. The gas-solid separation and condensation module is connected to the outlet of the high-temperature plasma pyrolysis module, receives combustible gas and solid residue, performs gas-solid separation on the combustible gas and solid residue, and condenses and recovers the combustible gas. The exhaust gas purification module is connected to the gas outlet of the gas-solid separation and condensation module and is used to purify the residual exhaust gas after separation.

2. The high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control according to claim 1, characterized in that, The AI ​​control unit is signal-connected to the reaction chamber monitoring sensor group, the plasma generator, and the feeding device, and is used to dynamically adjust the plasma power of the plasma generator and the feeding rate of the feeding device based on the real-time data fed back by the reaction chamber monitoring sensor group; the gas-solid separation and condensation module and the exhaust gas purification module are both signal-connected to the AI ​​control unit, and the AI ​​control unit optimizes the working status in real time according to the system operating parameters.

3. The high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control according to claim 1, characterized in that, The raw material pretreatment module includes a twin-shaft shredder and a drum dryer, which are connected in sequence via a sealed conveyor belt; the twin-shaft shredder is equipped with high-strength alloy blades and a dual-motor drive structure.

4. The high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control according to claim 1, characterized in that, The high-temperature plasma reaction chamber adopts a composite ceramic liner structure, and the plasma generator is a dual-electrode ring discharge structure with tungsten-copper alloy electrodes arranged in a ring symmetrical manner.

5. The high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control according to claim 1, characterized in that, The feeding device is a stainless steel spiral blade structure, and the feeding channel is equipped with a sealing bushing and is driven by a servo motor.

6. The high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control according to claim 1, characterized in that, The reaction chamber monitoring sensor group includes a temperature sensor, a pressure sensor, an online gas analyzer, and a flow sensor.

7. The high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control according to claim 1, characterized in that, The AI ​​control unit incorporates a long short-term memory neural network and a model predictive control algorithm.

8. The high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control according to claim 1, characterized in that, The gas-solid separation and condensation module includes a multi-stage cyclone separator, an electrostatic deposition module, a multi-stage condenser, and a replaceable high-efficiency filter.

9. The high-temperature plasma recovery system for spent wind turbine blades based on AI closed-loop control according to claim 1, characterized in that, The exhaust gas purification module includes a photocatalytic reaction tower, a spray scrubbing tower, and an activated carbon adsorption module.

10. A high-temperature plasma recovery device for waste wind turbine blades based on AI closed-loop control, characterized in that, include: A dual-shaft shredder, installed in the first process, is used to crush waste blades. A drum dryer, connected in sequence to the twin-shaft shredder via a sealed conveyor belt, is used to dry the crushed material. A feeding device is connected to the output end of the drum dryer. The feeding device is equipped with a sealing bushing and is used to convey the material to be dried. A high-temperature plasma reaction chamber, connected to the output end of the feeding device, is used to carry the incoming dry material; A plasma generator is installed on the high-temperature plasma reaction chamber and is used to generate a plasma arc region by excitation with a high-voltage power supply to heat the dry material inside the high-temperature plasma reaction chamber, causing the material to decompose. A reaction chamber monitoring sensor group is installed in the high-temperature plasma reaction chamber to monitor the real-time parameters of the high-temperature plasma reaction chamber; A multi-stage cyclone separator is connected to the outlet of the high-temperature plasma reaction chamber to receive combustible gas and solid residue after pyrolysis and to perform gas-solid separation on the combustible gas and solid residue. An electrostatic deposition module, located in the subsequent process of the multi-stage cyclone separator, is used to capture fiber particles with a diameter of less than 1 μm in the airflow. A multi-stage condenser is installed in the subsequent process of the electrostatic deposition module. When the combustible gas generated by pyrolysis flows through the multi-stage condenser, the water vapor and heavy hydrocarbon components in it are condensed into liquid and collected. The uncondensed combustible gas continues to be transported to the next stage. A replaceable high-efficiency filter is installed at the rear end of a multi-stage condenser to filter uncondensed combustible gases and obtain exhaust gas. A photocatalytic reaction tower, connected to the multi-stage condenser, is used to degrade volatile organic compounds (VOCs) in the filtered exhaust gas; A spray scrubbing tower, together with the photocatalytic reaction tower, is used to absorb acidic gases and residual particulate matter in the exhaust gas; An activated carbon adsorption module is located at the rear end of the spray scrubbing tower. After the exhaust gas is pre-treated, it flows through the activated carbon adsorption module to adsorb residual organic matter and odors. The exhaust gas outlet of the activated carbon adsorption module is equipped with an exhaust gas composition analyzer and a particulate matter concentration monitor. The AI ​​control unit is connected to the dual-shaft shredder, drum dryer, feeding device, high-temperature plasma reaction chamber, plasma generator, reaction chamber monitoring sensor group, multi-stage cyclone separator, electrostatic deposition module, multi-stage condenser, photocatalytic reaction tower, and spray scrubbing tower.

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