469 results about "Microwave power" patented technology

The invention discloses a composite coated graphite negative electrode material, a preparation method thereof and a lithium ion solid-state battery, and belongs to the technical field of lithium ion solid-state batteries, the composite coated graphite negative electrode material comprises a graphite matrix and a composite coating layer, and the composite coating layer comprises an inner layer amorphous lithium chloride and an outer layer nanocrystalline LiF / Li3N composite phase. Mixing graphite, lithium chloride containing crystal water and ammonium fluoride to obtain a mixed material; placing the mixed material in a microwave reaction cavity, heating the mixed material to 600-700 DEG C at the microwave power of 800-1200 W in an H2 / Ar mixed atmosphere, and keeping the temperature for 20-60 minutes; and cooling the sintered mixed material, grinding, and sieving with a 100-300 mesh sieve to obtain the composite coated graphite negative electrode material with a coating layer thickness of 10-50 nm. The invention provides an innovative amorphous LiCl / nanocrystalline LiF-Li3N gradient coating layer design, the performance of the lithium ion battery is remarkably improved by optimizing an ion migration path, enhancing the interface stability and reducing the process cost, and a new engineering way is provided for realizing high magnification and long cycle performance of the sulfide all-solid-state battery.

The invention relates to the technical field of industrial control, and discloses a real-time dynamic tuning system for a microwave drying process, which is characterized in that temperature distribution, microwave power intensity, humidity gradient and material deformation parameters in a drying cavity are acquired in real time, and time-space alignment and noise suppression are carried out on data of a multi-source sensor based on a Kalman filtering algorithm; generating a drying state matrix, generating a three-dimensional regulation and control instruction containing microwave emission frequency, power partition and drying time according to the drying state matrix by adopting a mixed algorithm of model predictive control and fuzzy logic, and taking the deviation between a final moisture content detection value of the material and a model predictive value as a loss function through an online error back propagation model. The weight coefficient of the microwave-thermal-mass transfer coupling model is dynamically corrected, the microwave energy ratio is optimized based on the improved particle swarm optimization, and the three-dimensional gradient field intensity distribution matched with the material morphology is generated according to the three-dimensional regulation and control instruction, so that the efficiency of the microwave drying process during real-time dynamic regulation and optimization is improved.

A ray generating device and a control method thereof are provided. The ray generating device includes: an electronic beam generating device; a microwave generating device; a microwave circulator, having a power input port and at least two power output ports, the power input port being connected to the microwave generating device; a plurality of accelerating tubes respectively connected to at least two power output ports, configured to respectively receive a plurality of electronic beams, and accelerate electronic beams respectively through microwaves received from the at least two power output ports, and to respectively generate a plurality of rays having at least two different energies; and a controller, configured to perform chronological control on microwave power of the microwave generating device, and chronological control on beam loadings of the electronic beams generated by the electronic beam generating device and respectively corresponding to accelerating tubes.

The invention discloses a low-temperature vacuum microwave freeze-dried sinomenine hydrochloride preparation and a preparation method thereof in the technical field of pharmaceutical preparations, and solves the problems of long drying time, high energy consumption and poor product stability in the traditional freeze-drying technology. A vacuum microwave collaborative freeze-drying technology is adopted, microwave internal heating is achieved through a 2.45 GHz magnetron microwave generator and a rectangular waveguide tube under the conditions that the vacuum degree is 20-30 Pa and the plate layer temperature ranges from-40 DEG C to-35 DEG C, the microwave power density in the primary drying stage ranges from 0.3 W / g to 0.5 W / g, the microwave power density in the secondary drying stage ranges from 0.1 W / g to 0.3 W / g, and collaborative control over the microwave power, the vacuum degree, the temperature and the time is achieved in cooperation with a quaternary coupling precise control system. The preparation contains 50 mg of sinomenine hydrochloride, 100 mg of mannitol and 10 mg of sodium carboxymethyl cellulose grafted modified polyvinylpyrrolidone, the residual moisture is controlled to be 0.4-0.6%, the activity retention rate is 94-96%, and the drying time is shortened to 12-16 hours.

The invention provides a magnetic confinement microwave plasma preparation method and system for coal-based graphene quantum dots, and relates to the technical field of graphene quantum dot preparation, and the method comprises the following steps: pretreating a coal raw material, removing impurities, and crushing the coal raw material to a preset particle size; detecting the coal quality parameters of the pretreated coal raw material, wherein the coal quality parameters at least comprise the contents of C, H and O elements; the coal quality parameters are input into a QYOA algorithm to be analyzed, and adjustment parameters of microwave power and reaction gas are obtained; feeding the pretreated coal raw material into a reaction cavity, and forming a three-dimensional confinement field in the reaction cavity through a magnetic confinement device; according to the method, magnetic confinement, microwave plasma, a QYOA algorithm and ultrasonic aftertreatment are organically combined to form a synergistic effect, dissociation of carbon clusters is promoted through the synergistic effect of the magnetic confinement and the microwave plasma, the yield of the coal-based graphene quantum dots is increased to 30% or above from less than 10% of a traditional method, the production efficiency is improved, and large-scale production is facilitated.

The invention belongs to the cross technical field of artificial intelligence and environmental protection engineering, particularly relates to a denitration catalyst microwave regeneration optimization method based on machine learning, and aims to solve the problems of inaccurate energy matching, large structural damage and low efficiency of a traditional regeneration method. The method comprises the following steps: constructing a catalyst multi-dimensional feature database, establishing a microwave regeneration multi-physics field coupling simulation model, and training an integrated learning prediction model to associate input features with a regeneration effect; in the regeneration process, infrared thermal imaging, microwave reflection and gas sensing equipment are integrated, temperature field, energy absorption and tail gas data are collected in real time, and microwave power, frequency and atmosphere parameters are dynamically regulated and controlled. Accurate energy release and closed-loop intelligent regulation and control are achieved, the activity recovery rate after regeneration exceeds 92%, the specific surface area retention rate exceeds 85%, the regeneration period is shortened to one third of that of a traditional method, energy consumption is reduced by 40%, full-life-cycle intelligent management of the catalyst is supported, and economical efficiency and sustainability of environmental protection equipment are remarkably improved.

The invention discloses an automobile structure assembly gluing heat treatment method and system based on frequency conversion microwaves. The method comprises the steps that the surface of an automobile structure assembly is subjected to activating treatment through a plasma spraying technology; the method comprises the following steps: coating a to-be-glued automobile structure component with an adhesive, carrying out heat treatment on the coated automobile structure component by adopting a variable-frequency microwave generator, dynamically adjusting the microwave frequency to realize uniform heating of the interior of an adhesive layer, monitoring the temperature field distribution of the adhesive layer in real time, and dynamically adjusting the microwave power output; in the microwave heat treatment process, pressure is applied synchronously to promote discharge of bubbles in the adhesive layer and improve the compactness and mechanical property of the adhesive layer; and a gradient cooling mode is adopted for cooling the automobile structure assembly subjected to heat treatment. According to the embodiment of the invention, the bonding quality and durability of the automobile structural component can be remarkably improved through frequency adjustment, temperature monitoring, bubble removal and pressure application in the microwave heating process.

The invention discloses a food baking processing program control system and method, and relates to the technical field of food processing intelligent control, and the method comprises the steps: collecting the dielectric characteristics of a material, capturing the change dynamic state of a dielectric loss angle tangent value, and recognizing the phase change stage of the material in real time through a time domain dielectric spectrum analysis method; constructing a dual-channel heat conduction model, and dynamically identifying the regional temperature gradient of the baking equipment according to the phase change stage of the material; and based on the regional temperature gradient of the baking equipment, through a multi-parameter coupling control algorithm, calculating the microwave power adjusting quantity and the wind speed ratio adjusting quantity of the baking equipment, and generating a composite control instruction set. According to the method, the phase change stage of the material is recognized in real time through a time domain dielectric spectrum analysis method, the relevance between relaxation time distribution and a phase change characteristic spectrum is accurately analyzed through inverse Laplace transformation and a dynamic time warping algorithm, and dynamic capture of key phase change nodes such as glass transition and starch gelatinization is achieved.

The invention discloses a microwave catalysis and plasma combined waste gas treatment system and method. The system is formed by connecting a pretreatment module, a pretreatment cavity module, a main catalysis cavity module, a tail end purification module and an intelligent control module in series. The pretreatment module adopts two-stage condensation and multi-stage dust removal and is provided with a humidity particle return valve; the pretreatment cavity completes low-temperature oxidation under the cooperation of multi-frequency microwaves and a catalyst; the main catalytic cavity integrates a pulse corona-enhanced plasma discharge structure and a 2.45 / 5.80 GHz double-frequency microwave source, and cooperates with a catalyst to deeply crack VOCs. The tail end module achieves waste heat recovery and fine purification through double heat exchangers and double activated carbon adsorption, and a terminal monitors emission online through Fourier infrared. And the intelligent control module predicts and adjusts the microwave power, the discharge frequency and the valve position in real time based on a long short-term memory (LSTM) network algorithm, namely LSTM, so that the system keeps high-efficiency, low-energy-consumption and stable operation under the conditions of high humidity and multi-component VOCs (Volatile Organic Compounds).

The invention discloses a preparation method of an interlayer spacing adjustable MXene material through microwave-assisted chemical etching, and belongs to the technical field of two-dimensional nano material preparation. Key parameters such as etching agent solution concentration, villiaumite ratio and microwave power are adjusted and controlled through a synergistic effect mechanism of a microwave field and chemical etching; the preparation method realizes accurate and controllable interlayer spacing preparation of the MXene material, has the advantages of high reaction speed, high etching efficiency, accurate and adjustable interlayer spacing, wide range and the like, and provides an efficient and reliable preparation method for performance optimization of the MXene material in the fields of energy storage, catalysis, separation membranes, gas sensitivity and the like.

According to the microwave reactor and method for recycling the three-way catalytic precious metal, through the synergistic effect of microwave radiation and the telescopic glass stirring rod, the problem that the mass transfer efficiency is low due to high viscosity of a traditional ionic liquid leaching system is solved, the precious metal leaching time is shortened, and the efficiency is improved. Meanwhile, a diamond ATR crystal infrared probe is adopted to monitor components of a reaction solution in real time, multi-parameter linkage control of microwave power, temperature and stirring rate is combined, reaction conditions are dynamically optimized, and the recovery rate of platinum, palladium and rhodium is increased. The method systematically solves the technical bottlenecks of high energy consumption, heavy pollution and low ionic liquid leaching efficiency of the traditional pyrogenic process / wet process, and provides an innovative scheme with high efficiency, low environmental load and industrial feasibility for precious metal recovery.

The invention provides an electric tungsten fire needle tumor ablation system, and the system comprises an image navigation module which is used for integrating CT / MRI / ultrasonic images, constructing a three-dimensional tumor model in real time, tracking a target region through electromagnetic positioning, and dynamically calibrating a needle insertion path; the insulating tungsten fire needle execution module is used for adopting a high-density tungsten alloy needle body and a multi-axis mechanical arm to control multi-angle puncture; the energy output module is used for intelligently adjusting radio frequency / microwave power and releasing energy in a pulse mode; and the temperature control feedback module is used for monitoring the temperature in real time and automatically terminating overheating energy. According to the technical scheme, accurate, safe and effective ablation of tumors is achieved.

The invention provides a superconducting diode based on superconducting quantum interference, a preparation method thereof and a quantum device. The superconducting diode provided by the invention can realize a one-way conduction function at an extremely low temperature, and has extremely low power consumption, so that basic parts of a low-temperature quantum circuit are greatly expanded. And the required external magnetic field is very small and can be provided by an external magnet and a current circuit prepared on the same chip as the device, so that the application is convenient. In addition, under low-temperature microwave irradiation, the device shows the capacity of small change along with microwave power, and it is indicated that the device also has the stable working capacity in the high-power microwave environment.

The invention discloses a regenerated slurry preparation method based on recycled ceramic casting membranes, and belongs to the technical field of ceramic slurry preparation, and the method comprises the following steps: S1, pretreatment, fine crushing and deep extraction, and supercritical CO2 fluid extraction after crushing treatment; s2, thermal degreasing and activation: step-by-step temperature control removal and surface modification step-by-step heating thermal degreasing: in the first stage, the temperature is 150-250 DEG C, and heat preservation is performed for 1-2 hours; in the second stage, the temperature is 300-400 DEG C, and heat preservation is conducted for 0.5 h; s3, a plasma surface activation process: putting the ceramic powder into low-temperature plasma treatment equipment, introducing a mixed gas of argon and oxygen as a working gas, and treating under the action of specific radio frequency or microwave power; s4, slurry reconstruction, precise formula and optimized dispersion gradient powder mixing, wherein regenerated ceramic powder and new ceramic powder are mixed; and constructing a dispersion system: adding a solvent and a composite dispersant, and carrying out dispersion ball milling.

The invention discloses a microwave power test method and platform and a multi-channel microwave power consistency control method. The microwave power test method comprises the following steps: firstly, adjusting the test environment temperature or the preheating time of a microwave signal source until the test environment temperature is within a preset temperature range and the preheating time of the microwave signal source meets a preset time range, then setting test parameters of the microwave signal source, and then starting from the initial power; adjusting the current output power of the microwave signal source according to the power step length, and controlling the microwave signal source to output a microwave signal to the to-be-detected detection module according to the current output power; the method comprises the steps that a microwave signal source is connected with a detection module to be tested, output voltage of the detection module to be tested is obtained, the output voltage is processed and stored, when current output power of the microwave signal source reaches end power, a test end signal is displayed, test is stopped, and input power test data and corresponding output voltage test data of the detection module to be tested are obtained. According to the invention, the efficiency and reliability of microwave power testing can be effectively improved.

The invention provides a single / double-module energy-adjustable superconducting electron accelerator device, a medical isotope production system and a medical isotope production method, and the device comprises an injection system which is used for generating an electron beam current with certain energy and current intensity; the acceleration module system comprises single or double parallel acceleration modules, and each acceleration module comprises a superconducting cavity and a low-temperature unit; the low-temperature unit comprises a refrigerator, a high-thermal-conductivity cold chain, and a cold shield and a vacuum shell which sequentially cover the periphery; the radio frequency system is used for feeding microwave power into the superconducting cavity, maintaining the amplitude and phase stability of an electromagnetic field and accurately compensating the frequency deviation of the superconducting cavity; and the electron motion trail control system is used for guiding the electron beam to pass through the acceleration module and the plurality of circulating transmission pipelines with the corner radiuses sequentially enlarged for multiple times. The technical problems that an existing accelerator is limited by serious heating and cannot achieve high-flow-intensity and high-energy operation, a low-temperature cooling system is complex, so that the operation and maintenance cost is high, high energy and high flow intensity cannot be considered at the same time, and medical isotope production is difficult to meet are solved.

The invention discloses a plasma-assisted surface activation method. The method comprises the following steps: placing a material matrix in a reaction cavity, vacuumizing, introducing oxygen and inert gas, exciting a radio frequency power supply and a microwave power supply to form multi-frequency composite plasma, and treating the material. The physical bombardment of the radio frequency plasma and the chemical activation of the microwave plasma have a synergistic effect, and deep cleaning and efficient modification of the surface of the material are realized in a low-vacuum environment. The surface water contact angle of the treated material is reduced to 35 degrees or below, the adhesive force of a coating reaches 0-1 level, the tensile shear strength is improved to 22.5 MPa or above, the problems that a traditional surface treatment method is unstable in effect and insufficient in modification depth are effectively solved, and the surface treatment method has the outstanding advantages of being high in treatment efficiency, uniform and lasting in modification effect, environmentally friendly and the like.

The invention relates to a boiler operation parameter optimization method and system for multi-fuel combustion of multiple solid wastes, and the method comprises the following steps: (1) multi-source data collection: obtaining the heat value, the water content, the chlorine-sulfur ratio and the heavy metal content of the solid wastes in real time through a spectrum analyzer, a visual recognition system and an online sensor; (2) intelligent compatibility optimization: calculating a solid waste mixing ratio by adopting a genetic algorithm based on calorific value balance and pollutant inhibition targets, and controlling a Cl / S molar ratio to be 1.2-1.8 and the alkali metal content to be 1t; 50%; (3) pretreatment and drying: the water content gt; and carrying out microwave-steam combined drying on 25% of solid waste, and dynamically adjusting microwave power, steam injection time and the like. The method has the advantages that through the technical integration of multi-source data fusion, intelligent algorithm optimization and digital twinborn verification, a solid waste co-combustion full-process optimization system is constructed, and ultralow emission of pollutants and safe and economical operation are achieved while the energy utilization rate is increased.

The present invention relates to a spacecraft electric thruster particularly suitable for both propellant-fed and air-breathing electric space propulsion comprising an ionization chamber (11) for plasma generation which develops along a central development axis (X), wherein the ionization chamber (11) has a chamber inlet (12) configured to allow gas inflow and a chamber outlet (13) configured to allow extraction of ionized gas particles; a power injection assembly (30) configured to perform electron heating for plasma generation inside the ionization chamber (11); a magnetic assembly (20) configured to generate a magnetic field for plasma confinement in the ionization chamber (11); and an ion extraction and acceleration assembly (40) configured to extract ionized gas particles from the ionization chamber (11) through the chamber outlet (13) and accelerate them along an ion acceleration direction (Z), wherein the power injection assembly (30) comprises a microwave power delivery system (31) configured to deliver an electric field oscillating at a selected microwave frequency (f) and to inject the generated oscillating electric field in the ionization chamber (11), and wherein the ionization chamber (11) comprises a plurality of walls (11a, 15,16,41) closed to the passage of microwaves apart from a portion of at least one lateral wall (11a) of the plurality of walls (11a, 15,16,41) at which the power delivery system (31) is coupled to inject the generated oscillating electric field in the ionization chamber (11), and is resonant for electromagnetic fields oscillating at the selected microwave frequency.

The invention discloses a wide vermicelli production control system with a safety monitoring function, and relates to the technical field of automatic control, and the wide vermicelli production control system comprises an online state sensing unit which is used for collecting diffuse reflection spectrum vectors and core temperature in real time; the state estimation and prediction unit is used for receiving the diffuse reflection spectrum vector, calculating a predicted glass transition temperature, calculating a safety margin and generating a dynamic temperature set point and a core safety constraint; the dynamic optimization control unit is used for receiving the core temperature, the dynamic temperature set point and the core security constraint, and performing rolling optimization calculation according to a multi-objective optimization function to generate an optimal control instruction; and the process parameter execution unit is used for receiving the optimal control instruction and adjusting the microwave power and the vacuum degree. Through real-time product state sensing, online prediction and scientific safety boundary construction, complete self-adaptive control of the production process is realized, the drying efficiency and the product quality are cooperatively improved, and the production stability and the yield are greatly enhanced.

A plasma processing apparatus includes a process container, a power supply configured to supply radio frequency or microwave power for generating plasma in the process container, a plurality of gas nozzles, each having a gas flow passage therein, and a plurality of protrusions formed integrally with a ceiling wall and / or a sidewall that defines the process container, the plurality of protrusions protruding from the ceiling wall and / or the sidewall. Each of the plurality of protrusions has a gas hole at a leading end of the protrusion. The ceiling wall and / or the sidewall has recesses in which the plurality of gas nozzles is arranged, respectively, such that the gas flow passage of each of the plurality of gas nozzles communicates with the gas hole of each of the plurality of protrusions.

The invention relates to the technical field of waste circuit board recovery, and particularly discloses a circuit board resin precise continuous gasification system and method based on reaction kinetics regulation and control. The method comprises the following steps: acquiring three-dimensional temperature field distribution in a gasification furnace, and detecting the component concentration of the resin gasification product through a multi-component flue gas analyzer; the circumference of the gasification furnace is divided into a plurality of fan-shaped microwave radiation areas, and the microwave power density of each area is dynamically adjusted in a time sequence rotation mode; a pulse type microwave heating strategy is established, heating pulse parameters are accurately regulated and controlled according to the concentration change rate of gasified products, and efficient gasification of the deep layer and the surface layer of the resin is achieved in combination with dual-frequency microwave synergistic heating; a convection exhaust mechanism is constructed, the flow rate and temperature of the introduced gas are controlled, and gasification product gas is sucked through negative pressure. Accurate and continuous regulation and control of the resin gasification process are achieved, and accurate gasification of the resin in the circuit board is improved.

The invention discloses an in-cavity plasma regulation and control method based on a distributed antenna array MPCVD, and relates to the field of plasma regulation and control, and the method comprises the steps: building a multi-source MPCVD reaction cavity which comprises a microwave incident structure, a distributed regulation structure and a multi-source MPCVD reaction cavity; the distributed adjustment structure comprises a plurality of plasma regulation and control parts which are arranged at equal intervals; each plasma regulation and control part comprises an antenna knob, an inner conductive antenna and a choke structure; microwaves are input through the microwave incidence port, the microwave power and the air pressure in the reaction cavity are adjusted to numerical values suitable for diamond growth, and the plasma is stabilized; detecting the surface temperature distribution of the mapping substrate, and judging the plasma discharge uniformity; according to the invention, the electric field in the cavity is changed by adjusting the length of the feed antenna, so that the uniformity of plasma discharge is regulated.

The invention relates to a catalyst for removing CO in sulfur-containing sintering flue gas and a preparation method thereof. The preparation method comprises the following steps: sulfur-resistant treatment: soaking TiO2 in concentrated sulfuric acid for 12-24 hours, treating for 5-10 minutes under the microwave power of 300-500W, treating for 5-10 minutes under the microwave power of 500-700W, treating for 2-5 minutes under the microwave power of 700-800W, washing and drying; co-impregnation: adding the TiO2 carrier into a mixed solution containing a Pt precursor, a La precursor and a Ce precursor, and carrying out ultrasonic auxiliary impregnation for 1-3 hours; and drying and roasting: drying the impregnated product at 80-120 DEG C for 4-12 hours, and roasting at 400-600 DEG C for 2-4 hours. The catalyst prepared by the method has the advantages of high specific surface area, stable surface sulfur and high utilization rate of active components, and can realize efficient oxidation removal of CO in sulfur-containing sintering flue gas.

The invention relates to the technical field of wood drying, in particular to a laminated wood microwave drying process with a high-precision moisture control function. The method comprises the following steps: pretreating raw materials to obtain veneers, and measuring the initial moisture content; generating a reference drying curve from a pre-stored experience database according to the initial water content and a preset target final water content; the veneer passes through a microwave drying cavity, and a microwave generator is started; when the real-time moisture content data of the single board deviates from the expected value of the reference drying curve, microwave power adjustment is carried out until it is judged that the drying end point is reached, the microwave generator is closed, and the single board is output. According to the invention, by combining the uniformity advantage of microwave heating with the accuracy of real-time feedback control, a highly automatic and intelligent drying system is formed, so that the industrial problems of large internal stress and easy deformation and cracking of laminated wood veneers caused by uneven heat conduction in a traditional method are fundamentally solved; and finally, a high-quality electrical laminated wood product is stably produced.

The invention provides a single-module double-cavity parallel superconducting electron accelerator device, a medical isotope production system and a medical isotope production method, and the device comprises an injection system which is used for generating an electron beam current with certain energy and current intensity; the acceleration module system comprises a low-temperature unit and a superconducting cavity; the low-temperature unit comprises a refrigerator, a high-thermal-conductivity cold chain, and a cold shield and a vacuum shell which sequentially cover the periphery; the refrigerating machine is connected with the superconducting cavity through a high-thermal-conductivity cold chain; the radio frequency system is used for feeding microwave power into each superconducting cavity, maintaining the amplitude and phase stability of an electromagnetic field and accurately compensating the frequency deviation of the superconducting cavity; and the electronic motion trail control system is used for guiding the electronic beam current to pass through the double parallel superconducting cavities and a plurality of circulating transmission pipelines of which the corner radiuses are sequentially enlarged for multiple times. The technical problems that an existing accelerator is limited by serious heating and cannot achieve high-flow-intensity and high-energy operation, a low-temperature cooling system is complex, so that the operation and maintenance cost is high, high energy and high flow intensity cannot be considered at the same time, and medical isotope production is difficult to meet are solved.

The invention relates to the technical field of industrial VOCs treatment, in particular to a multistage heat pump coupling microwave desorption system which comprises a microwave targeted preheating module, a heat pump gradient heating module, a low-pressure desorption environment construction module and a waste heat recovery network. The heating device is used for selectively heating a VOCs enrichment area; the heat pump gradient heating module adopts a multi-stage heat pump system, the adsorbent is heated to 130-160 DEG C from 70 DEG C in a gradient manner, and the heating rate is 8 DEG C / min; the low-pressure desorption environment construction module is used for designing a negative pressure pipeline based on the Venturi effect to form a-1.5 kPa desorption environment; and the waste heat recovery network comprises a plate heat exchanger and a heat pump evaporator and is used for realizing efficient recovery of desorption waste gas waste heat. The gradient activation composite zeolite rotating wheel and the AI dynamic regulation and control platform are matched, real-time optimization of microwave power, heat pump output and negative pressure parameters is achieved, and the device is suitable for treatment of high-concentration VOCs in the industries of coating, rubber, printing and the like.

This invention discloses a food baking processing control system and method, belonging to the field of intelligent control technology for food processing. The system includes: acquiring the dielectric properties of materials and capturing the dynamic changes in the dielectric loss tangent; simultaneously using time-domain dielectric spectroscopy analysis to identify the phase transition stages of the materials in real time; constructing a dual-channel heat conduction model and dynamically identifying the regional temperature gradient of the baking equipment based on the phase transition stages; and calculating the microwave power adjustment and fan speed ratio adjustment of the baking equipment based on the regional temperature gradient of the baking equipment using a multi-parameter coupled control algorithm, and generating a composite control command set. This invention identifies the phase transition stages of materials in real time using time-domain dielectric spectroscopy analysis, and accurately analyzes the correlation between the relaxation time distribution and the phase transition characteristic spectrum using inverse Laplace transform and dynamic time warping algorithms, achieving dynamic capture of key phase transition nodes such as glass transition and starch gelatinization.

The invention provides a method for reducing silicon inclusion defects in silicon carbide single crystals, which comprises the following steps of: A) carrying out microwave sintering on silicon carbide powder under a vacuum condition and a protective atmosphere before the silicon carbide powder grows silicon carbide crystals; the microwave sintering comprises a first stage, a second stage and a third stage; in the first stage, the silicon carbide powder is heated to the temperature T1 from the room temperature with the microwave power P1, and heat preservation is conducted for t1 time at the temperature T1; in the second stage, the silicon carbide powder is heated from the temperature T1 to the temperature T2 at the microwave power P2; in the third stage, the temperature T2 is kept constant at the microwave power P3, and heat preservation is conducted for t2; p2 > P1, and P3 < = P2; t1 ranges from 300 DEG C to 600 DEG C, and T2 ranges from 1400 DEG C to 1800 DEG C; and B) washing and drying the silicon carbide powder subjected to microwave sintering. The method provided by the invention effectively improves the defect of silicon wrappage directly generated due to rich Si in a gas phase in the growth process.

The present application relates to the technical field of microwave control, and discloses a microwave control method, device, equipment and storage medium, the method comprising: obtaining a plurality of preset input microwave powers and establishing a plurality of corresponding dynamic matrices; obtaining an actual input microwave power and obtaining a plurality of corresponding power deviations from the preset input microwave powers; obtaining a weight factor according to the power deviations, and obtaining a dynamic matrix of the actual input microwave power according to the weight factor and the plurality of dynamic matrices; and establishing a prediction model to dynamically predict and control microwave heating of a sample to be heated. The present application determines the dynamic matrix of the actual input power according to the dynamic matrix of the preset input microwave power, establishes a prediction model, and realizes dynamic prediction and control of microwave heating, thereby solving the problem of uneven temperature distribution of heated materials in microwave heating, and the problem of hot spots in local areas, improving the efficiency of the microwave heating process, and realizing control of the heating process.