28 results about "Ultrasonic standing wave" patented technology

The invention relates to a multi-part moxibustion auxiliary nursing device and a method thereof, and belongs to the technical field of modern rehabilitation and daily health care, and the method comprises the following steps: S1, arranging a sound wave agglomeration flow channel and a downstream variable cross-section cyclone separation guide pipe; s2, the driving frequency is corrected along with temperature adjustment, the pipe diameter is made to be integral multiples of the half-wavelength, and it is ensured that standing wave nodes are located in the center of the section; s3, moxa-moxibustion smoke is introduced, and the flow speed is controlled to be 2-4 m / s so that the laminar flow state can be kept; s4, starting 27 to 29 kHz, gt; 140dB ultrasonic standing waves are adopted, and tar is driven by acoustic radiation force until wave nodes are gathered into gt; 10 [mu] m large particles; s5, the airflow tangentially enters an inverted-cone-shaped pipe, large particles are captured through centrifugal force, and medicine volatile oil gas is discharged from the center. According to the method, harmful substances such as polycyclic aromatic hydrocarbon and the like are efficiently removed, meanwhile, monoterpenoids and sesquiterpenoids volatile oil components in the moxa smoke are reserved to the maximum extent, and the medicinal value of moxibustion nursing is ensured.

The application provides a solder ball coating method and device and a semiconductor packaging production line, relates to the field of solder ball surface coating, and is used for solving the problems of mechanical contact, surface damage, pollution introduction, incomplete coating and uneven thickness during solder ball surface coating. The solder ball coating method comprises the following steps: generating an ultrasonic standing wave field; placing a solder ball to be processed at a standing wave node position of the ultrasonic standing wave field, so that the acoustic radiation force generated by the standing wave node position can make the solder ball to be processed suspended in a non-contact state; feeding an organic coating material into the standing wave node position; and making the organic coating material deposited on the surface of the solder ball to be processed to form an organic coating. By constructing the ultrasonic standing wave field, the solder ball to be processed is suspended at the standing wave node by the acoustic radiation force, the organic coating material is coated in the suspended state, the collision friction and impurity pollution are reduced, the coating completeness and uniformity of the solder ball surface are improved, and the subsequent welding reliability and packaging yield are improved.

The application discloses a micro-nano air floatation solid-liquid separation control method based on scum density monitoring, and relates to the technical field of automatic water treatment control. The method comprises the following steps: obtaining scum layer terahertz scanning data, analyzing free water and bubble distribution to calculate a density index; calibrating the index by using physical viscoelastic parameters measured by an ultrasonic standing wave field; inputting the calibrated index and a feedforward signal into a joint prediction optimization model to solve optimal operation variables; and outputting fluid and residue discharge parameters, which are used for adaptive adjustment of the underlying fluid and phased array acoustic nondestructive residue discharge. The application is used to solve the problems of the traditional optical monitoring, such as the existence of a surface sensing blind area, the lack of physical confidence in pure data state evaluation, and the easy breaking of flocs and secondary backmixing caused by mechanical residue discharge.

The application belongs to the technical field of new energy battery materials, and discloses a composite solid electrolyte and a preparation method and system thereof. The preparation method comprises the following steps: under an inert atmosphere, a pretreated sulfide solid electrolyte and a pretreated halide solid electrolyte are put into a cavity; under the action of an ultrasonic standing wave, the sulfide solid electrolyte is suspended, and the halide solid electrolyte is dispersed; a gradient electric field in the vertical direction is formed through upper and lower electrode plates in the cavity, so that the halide solid electrolyte is coated on the sulfide solid electrolyte, and the composite solid electrolyte is obtained. The method provided in the application realizes uniform coating of LIC on LPSC, the coating layer is uniform, the interface is firmly combined, the interface stability and the oxidation resistance of LPSC are effectively improved, and the ionic conductivity of LIC and LPSC is retained.

The invention relates to the technical field of chemical engineering and equipment, and discloses a continuous feeding reaction device for lignin photodegradation, which comprises a reaction tube, an LED light source array and a transducer arranged outside the reaction tube, and a rotating shaft arranged inside the reaction tube and driven by a rotation driving mechanism. A composite scraping mechanism is mounted on the rotating shaft and is used for forcibly scraping reaction liquid on the inner wall of the reaction tube to form a thin film. The transducer is used for generating an ultrasonic standing wave field to drive photocatalyst particles to form a high-density array; the LED light source array works in a pulse mode, and the triggering time of light pulses of the LED light source array is matched with the time when the density of the catalyst array reaches a peak value. Through the synergistic effect of dynamic film scraping self-cleaning, the sound field tissue catalyst and pulsed light synchronous irradiation, the problems of light shielding, easy blockage and slow mass transfer in a high-viscosity dark multiphase system are solved, and the reaction efficiency and stability are improved.

The invention belongs to the technical field of spacecraft ground test equipment, and particularly relates to a microgravity simulation device for spacecraft component ground test, which comprises a base, an air floatation support mechanism, an ultrasonic standing wave stabilization mechanism, a self-adaptive clamping mechanism, a servo drive error compensation mechanism, a control system and a test platform. The air floatation supporting mechanism provides vertical non-contact supporting force to offset gravity, the ultrasonic stabilizing mechanism maintains horizontal stability, the self-adaptive clamping mechanism is adaptive to parts of multiple sizes, and the servo compensation mechanism corrects deviation in real time. The composite suspension structure is combined with PID-fuzzy closed-loop control, the simulation error is controlled within 4.0%, the defects that existing equipment is low in precision, short in time, prone to pollution and poor in universality are overcome, long-time stable simulation can be achieved, and reliable support is provided for part ground verification.

The invention provides a preparation method of a block nano material based on continuous solid-liquid interface conversion, which comprises the following steps: A) simultaneously regulating and controlling a solid-liquid interface energy barrier of a solid-liquid conversion medium on the surface of a target area through a dynamic magnetic field and an ultrasonic standing wave to obtain a metastable state interface; the solid-liquid conversion medium is a magnetic nanofluid with a core-shell structure; and B) performing interface reaction on the metastable state interface and elements on the surface of the target area to generate a submicron intermetallic compound strengthening phase, thereby obtaining the block nano material. The preparation method provided by the invention is high in structural degree of freedom, supports direct forming on the surface of a curved surface / hollow structure, and can break through the plane limitation of a copper indium needle array. Moreover, zero pollution of an interface can be realized, the magnetic fluid is completely recovered, and the residual quantity is 1t; and 0.1%. Furthermore, the process temperature is reduced to 180 DEG C through ultrasonic-assisted diffusion, and energy consumption can be remarkably reduced and is reduced by 40% compared with the prior art.

This invention discloses a method for unsteady-state ultrasonic standing wave-assisted control of fusion welding. It utilizes dual ultrasonic transducers to perform dual-wave interference, forming an ultrasonic standing wave. This ultrasonic standing wave is introduced into the fusion welding process, and its action on the welding area allows for real-time control of the microstructure and properties of different parts of the weld joint. This forms a unsteady-state ultrasonic standing wave with controlled directional movement of the wave packet nodes, which is then used to regulate the microstructure and properties of the weld joint. This invention enables control over the direction and speed of movement of the unsteady-state ultrasonic standing wave wave packet nodes, allowing for regional control of the microstructure and properties of different parts of the weld joint, resulting in a more uniform joint composition and microstructure. It can solve problems such as undercut, burn-through, high residual stress, severe deformation, and columnar crystals that reduce joint performance during the welding of thin materials or fine wires, refining grains and improving joint performance. It can achieve controllable connections from the centimeter scale to the micrometer scale.

The invention discloses a wide-temperature-range shape memory high-resilience hot melt film preparation system, and relates to the technical field of hot melt film preparation, the wide-temperature-range shape memory high-resilience hot melt film preparation system comprises a melting plasticizing unit and a winding unit, and further comprises an ultrasonic standing wave molecular chain dynamic interlocking extrusion module, a piezoelectric ceramic array stress coding calendering module and a photo-thermal response interlocking module which are sequentially connected in series; according to the invention, ultrasonic standing wave molecular chain dynamic interlocking, piezoelectric ceramic array gradient stress coding, photo-thermal response interlocking type and real-time feedback closed loop technologies are utilized to solve the problems that the existing system depends on a multi-component formula and later training, and temperature range and bidirectional memory splitting and resilience and fatigue resistance cannot be achieved at the same time; continuous precise response and bidirectional reversible memory circulation of the membrane material in the whole temperature range of-50 DEG C to 150 DEG C are achieved, the membrane material has excellent high resilience and fatigue resistance, batch consistency and stability are improved, the membrane material can flexibly adapt to multi-scene requirements, and production efficiency is remarkably improved.

The application provides an atomization device, an atomization method and application, and belongs to the technical field of atomization. The application comprises a sound vortex generation system for generating a vortex ultrasonic field; and a liquid supply system for conveying an atomization medium into the vortex ultrasonic field. The sound vortex generation system is used to generate a vortex ultrasonic field, and the vortex ultrasonic field has both the atomization capacity of an ultrasonic standing wave field and the atomization capacity of centrifugal atomization, so that the atomization medium can be atomized. The application has a wide application prospect in the fields of ordinary liquid atomization and metal powder production.

The present application belongs to the technical field of synthetic ammonia production, and particularly relates to an environmentally-friendly synthetic ammonia production process. The present application adopts 6.5MPa aerospace furnace semi-waste pot gasification technology, cooperates with CaO-Fe2O3-K2CO3 composite combustion improver and optimizes oxygen-coal ratio to realize efficiency increase from the source, adopts isothermal shift system to realize accurate conversion of CO, adopts activated carbon-molecular sieve composite adsorbent in four-tower PSA system, and realizes deep purification in combination with cryogenic separation. In the ammonia synthesis link, a carbon nanotube loaded ruthenium-based catalyst is taken as the core, the carbon nanotube is subjected to plasma treatment to form a defect site, the ultrasonic standing wave is used to drive accurate loading of ruthenium ions, supercritical CO2 reduction is used to control the size of ruthenium particles, nitrogen-doped carbon shell is combined with K + Limited enhancement of electron transfer significantly improves the catalytic activity of the catalyst, and the hydrogen-nitrogen ratio is optimized in combination with green hydrogen, thereby effectively improving the single-pass conversion rate and the yield of the product.

This application relates to the field of mass spectrometry analysis and detection technology, and in particular to a detection method for enhancing ion recognition, comprising the following steps: Step 1, placing an ultrasonic standing wave device within an ion source, the ultrasonic standing wave device including at least two oppositely arranged acoustic transducer units for emitting sound waves of the same frequency and opposite propagation directions to superimpose and form an ultrasonic standing wave field, and also including a triaxial adjustment mechanism; Step 2, the two acoustic transducer units extending into the ion source cavity and located on both sides of the nozzle, adjusting the position of the acoustic transducer units using the triaxial adjustment mechanism so that the acoustic transducer units are close to the rear of the nozzle, and the center height of the acoustic transducer units is lower than the tip of the nozzle; Step 3, adjusting the spacing between the two acoustic transducer units; Step 4, aligning the standing wave node axially with the entrance of the mass spectrometer detector. This method can enhance the focusing of sample ions, thereby improving the ion recognition effect of the mass spectrometer detector, without changing the internal structure of the ion source.

This invention discloses an apparatus and method for ultrasonic standing wave stripping of a cathode coating. The inner walls of both sides of the gantry frame are fixed to the Y-axis moving plates of two Y-axis motion mechanisms. Z-axis motion mechanisms are provided on both sides of the gantry frame, and two symmetrical support blocks in each of the two Z-axis motion mechanisms are fixed to the ends of two support plates in an X-axis motion mechanism. A vibration head fixing plate is fixed to the worktable of each X-axis motion mechanism. Multiple ultrasonic vibration modules are provided on the vibration head fixing plate, and the transducers in the ultrasonic vibration modules are connected to an ultrasonic generator via cables. The suction nozzle outlet fixed to the vibration head fixing plate is connected to the suction end of an industrial vacuum cleaner via a corrugated pipe. This invention uses standing wave vibration to induce tearing within the cathode coating, achieving the purpose of stripping the cathode coating while avoiding the generation of splatter, reducing damage to the cathode plate, and improving the reusability of the cathode plate.

The application discloses a cell culture method based on ultrasonic wave for inhibiting cell migration. The method comprises the following steps: placing a cell climbing sheet into a cell culture dish, adding a PDL solution, cleaning and air-drying the cell climbing sheet after the PDL solution is absorbed, placing the cell culture dish into an ultrasonic device, emitting ultrasonic waves by the ultrasonic device, forming a standing wave field in the cell culture dish for inhibiting cell migration, preparing a starvation medium, suspending cells in the prepared starvation medium to obtain a cell suspension, adding the cell suspension into the cell culture dish, removing the external ultrasonic wave field after a period of time, and transferring the cell culture dish into a carbon dioxide cell culture box for static culture. By applying a one-dimensional ultrasonic standing wave field in the early stage of the cell culture process, the application effectively inhibits cell migration, accurately controls cell arrangement by a non-contact method, reduces damage to the cells, and ensures the safety of the operation and the activity of the cells.

The invention relates to a liquid elastic modulus measuring system and method based on an ultrasonic grating Moire effect, and aims to solve the problems of non-visual physical phenomenon, poor teaching demonstration effect and the like in an existing liquid elastic modulus measuring experiment. Comprising a plane light source, an ultrasonic field system, a plano-concave lens, a known grating assembly, an angle sliding table, a ground glass screen and an industrial camera, and the ultrasonic field system excites ultrasonic standing waves in a water tank to form an ultrasonic grating; the plano-concave lens is used for amplifying ultrasonic grating constants so that the ultrasonic grating constants can be overlapped with known gratings which are arranged on the light emitting side of the plano-concave lens and are adjusted through the angle sliding table and accurately positioned, clear moire fringes are generated, fringe images are collected through the industrial camera, moire fringe intervals are measured through calibration, and the elastic modulus of the liquid is calculated by combining the liquid sound velocity and density. According to the invention, micron-scale ultrasonic grating constant measurement is converted into centimeter-scale moire fringe interval measurement, so that the measurement precision and the experiment intuition are effectively improved, and the method has popularization value in physical experiment teaching.

The present application relates to cable processing technical field, specifically, it relates to the cable processing technology for easy heat dissipation high-power energy storage power station. It includes the following steps: the oxygen-free copper pole is made into the conductor core; the boron nitride is treated by surface amido functionalization, then the aminated boron nitride is mixed with phosphorus hetero triazine compound to form covalent hybrid; the hybrid is mixed with other raw materials to prepare the master batch, then the master batch is used as the additive to obtain the insulating layer; the surface of the insulating layer is continuously coated to complete the preparation of the cable. In the present application, the conductor interface air gap is eliminated and the electric field is homogenized by the inner shielding layer, the thermal stress is buffered by the transition layer, the hybrid axial orientation is realized under the induction of ultrasonic standing wave field, and the phosphorus hetero group is activated to form carbon by step-by-step radiation crosslinking, the insulation and flame retardant properties are simultaneously strengthened; finally, the longitudinal heat conduction is enhanced by the copper shielding layer dendritic micro channel, the heat dissipation area is expanded by the corrugated aluminum sheath, so that the interface thermal resistance of the cable is reduced and the heat dissipation performance of the cable is improved.

The invention relates to the field of power system high-voltage insulation and intelligent sensing monitoring, in particular to an insulating oil multi-parameter rapid synchronous detection device and method, and the device comprises a fluid driving unit, an acoustoelectric layering test pipeline, a breakdown test unit and a self-healing damping valve. According to the system, through the synergistic effect of an ultrasonic standing wave field and dielectrophoretic force, a virtual layered structure of central rich gas core flow-peripheral pure circulation flow is constructed in a pipeline; the core of the device is that a hollow breathable fiber membrane tube is used for degassing analysis, and meanwhile, a peripheral shielding electrode is used for measuring the dielectric loss of oil without bubble interference; according to the invention, the hydrodynamic contradiction between a strong disturbance fluid environment required by oil-gas separation and an undisturbed steady-state laminar flow environment required by dielectric loss measurement is solved, and rapid and synchronous detection of multiple parameters of the insulating oil is realized.

This invention discloses an airflow spinning method for nanoparticle-reinforced magnesium oxide fibers. The method employs a synergistic process of "airflow drawing + in-situ electrostatic loading of nanoparticles": First, the nanoparticles undergo surface chemical modification and ultrasonic standing wave pre-dispersion; then, the modified particles are transported to a corona discharge chamber via a carrier gas, where a high-voltage power supply applies a charge to the nanoparticles while simultaneously applying an opposite charge to the spinning solution; using the carrier gas flow as the sole drawing force, the fiber jet captures the charged nanoparticles in a directional manner through Coulomb attraction during formation, achieving uniform and robust in-situ loading; finally, drying and segmented heat treatment yield nanoparticle-reinforced magnesium oxide fibers. The resulting fibers exhibit significantly improved toughness, strength, and thermal shock resistance. This invention features a continuous, low-cost, and environmentally friendly process, and the products are suitable for applications such as ultra-high temperature insulation, aerospace, high-temperature flue gas purification, and antibacterial protection.

The invention belongs to the technical field of high-pressure pneumatic valves, and discloses a constant-volume pneumatic valve capable of quickly responding under the high-pressure working condition and a control method thereof, polyimide-based dielectric sensing arrays on the inner wall of a constant-volume cavity are designed in a leadless mode, the high-pressure sealing risk is avoided, and pressure and density can be reversely pushed in real time; the ultrasonic standing wave sensor at the inlet synchronously collects flow velocity and temperature and identifies shock waves; in cooperation with a flow field-structure coupling interference suppression algorithm, resonance and eddy current distortion are eliminated; by means of the design, the parameter sensing response speed is higher, and the data precision meets the follow-up volume calculation and drive matching requirements; calculating a target volume by using the pressure and temperature after purification in the step S2 and combining a gas equation of a corrected compression factor; the SMA spring set achieves coarse volume adjustment through the temperature of high-pressure gas, the piezoelectric ceramic tube on the inner side is rapidly and finely adjusted based on real-time data, the fluid self-feedback driving cavity provides thrust linearly associated with inlet pressure, and the composite actuator is combined with lever amplification to achieve rapid driving of the valve clack.

The invention discloses a micro-nano sheet structure welding device and method based on laser melting and ultrasonic regulation and control, and belongs to the technical field of micro-nano material processing and manufacturing. The problems that in the liquid phase preparation and reconstruction process, micro-nano particles are driven by the minimum interface energy to naturally tend to be spherical, and isolated spherical particles are difficult to spontaneously assemble into a sheet structure under the template-free condition are solved. The underwater acoustic transducer device specifically comprises a laser assembly, an underwater acoustic transducer device assembly and a reaction container assembly. A micro-nano particle solution is contained in the reaction container assembly; a laser assembly is arranged above the reaction container assembly, the laser assembly emits pulse laser into the reaction container assembly, and the micro-nano particles enter a molten state after absorbing the pulse laser. The underwater acoustic transducer device assembly generates an ultrasonic standing wave field, and the ultrasonic standing wave field provides stable acoustic radiation force distribution to enable the liquid micro-nano particles to evolve towards the direction of the sheet structure to form the directionally arranged sheet structure, so that controllable control of the form of the micro-nano material is realized.

The invention discloses an adjustable electrochemical polishing device based on ultrasonic standing wave suspension, and belongs to the technical field of precision manufacturing. The device comprises a concave spherical surface ultrasonic array, a driving system, an electrolytic bath and an electrode assembly, the concave spherical surface ultrasonic array is formed by arranging 72 piezoelectric ultrasonic transducer array elements according to the circular ring distance of 16.5 mm and the curvature radius of 70 mm, the working frequency is 40 kHz, the driving system drives a gear to be meshed with an arc rack of a sliding array element seat through a stepping motor, and the sliding array element seat is driven by a motor to rotate. According to the invention, the array element angle is continuously adjusted within the range of 180-225 degrees, so that the standing point position of a standing wave field is changed, the electrolytic bath is composed of an upper hemispheroid shell, a lower hemispheroid shell and a visible glass window and is used for accommodating electrolyte and suspended abrasive particles such as 600-mesh silicon carbide, and the cathode clamp and the anode clamp are respectively arranged on the two sides of the bath body. And efficient and uniform material removal is achieved in combination with electrochemical polishing, and the device is compact in structure, high in adjustability and suitable for polishing of the surfaces of complex inner cavities in additive manufacturing.

This invention discloses an ultrasonic synchronous control flotation device based on ultrasonic standing waves, which includes a flotation cell and an ultrasonic transducer; a track assembly is provided on the side wall of the flotation cell, and a sliding assembly is provided at the bottom of the ultrasonic transducer; the sliding assembly is embedded in the track assembly, so that the ultrasonic transducer can move up and down along the track assembly; after the ultrasonic transducer is installed on the flotation cell, the position of the ultrasonic transducer can be moved again by the cooperation of the track assembly and the sliding assembly, and the ultrasonic transducer is easy and quick to install, remove and move.

The application relates to the technical field of oil fume aerosol purification, and discloses a high-efficiency oil fume purification all-in-one machine, which comprises a machine shell, a main air duct shell is arranged at the top of the machine shell, the main air duct shell is rotationally connected with a central main shaft through two upper and lower supports, the central main shaft is driven to rotate by a driving motor, a centrifugal turbine impeller and a spiral corrugated rotor are sequentially sleeved and fixedly connected to the outer wall of the central main shaft, the spiral corrugated rotor is located above the centrifugal turbine impeller, an acoustic stator ring is arranged around the periphery of the spiral corrugated rotor, and the acoustic stator ring is fixedly connected to the inner wall of the main air duct shell; an alternating gap is left between the outer circumferential surface of the spiral corrugated rotor and the inner side surface of the acoustic stator ring. Through high-frequency pneumatic coupling between the spiral corrugated rotor and a resonance microcavity, a high-energy ultrasonic standing wave field is established in the alternating gap, and high-efficiency deep deodorization is realized without the need of consumables such as activated carbon.

The invention discloses an ultrasonic-assisted marine aerosol laser-induced breakdown spectroscopy detection method and device, and the device comprises a marine aerosol generation and conveying unit, an ultrasonic standing wave gathering unit, a high repetition frequency laser-induced breakdown spectroscopy excitation unit, and a spectrum collection and analysis unit. The marine aerosol generating and conveying unit conveys marine aerosol to the ultrasonic standing wave gathering unit, the marine aerosol is excited in the high-repetition-frequency laser-induced breakdown spectrum excitation unit to generate plasma, and emitted light of the plasma is collected and analyzed by the spectrum collecting and analyzing unit; the marine aerosol generating and conveying unit and the ultrasonic standing wave gathering unit are installed on the anti-vibration platform through stand columns, a three-dimensional displacement table is arranged on the anti-vibration platform, and the forming condition of an ultrasonic standing wave sound field and the specific position of a standing wave node in the space are adjusted through the three-dimensional displacement table. The device is simple in structure, adjustable in parameter, simple in debugging process, high in detection sensitivity, good in safety and convenient to build and reuse.

The present application relates to powder metallurgy equipment technical field, especially to a kind of special atomization powdering system and powdering method for preparing metal beryllium powder.The atomization powdering system includes powdering main body mechanism and auxiliary mechanism, and the powdering main body mechanism includes the melting system, atomization system and powder collecting system connected in sequence from top to bottom;The auxiliary mechanism includes vacuum system, gas supply system and cooling system.The atomization system includes atomization chamber and atomization nozzle, and the atomization nozzle is arranged in the central top of atomization chamber, and the inside of atomization chamber is provided with ultrasonic standing wave unit along the direction of droplet flight, and the inner wall of atomization chamber is provided with cooling assembly;Vacuum system is communicated with melting system;Gas supply system is communicated with melting system and atomization nozzle.The metal beryllium powder prepared by the system optimization of high-temperature metal beryllium melt flow, protective gas flow adjustment and powder cooling has the comprehensive advantages of high sphericity, high purity and low oxygen content.

The invention relates to the technical field of high polymer material synthesis, and particularly discloses a styrene-based polymerization reaction temperature control optimization process which comprises the following steps: pretreatment: preheating a styrene monomer subjected to reduced pressure distillation at the vacuum degree of 0.05-0.1 MPa and the temperature of 40-80 DEG C to 35-45 DEG C to obtain a polymerization reaction precursor solution; transferring and replacing: transferring the polymerization reaction precursor solution to a polymerization reactor; stage polymerization: sequentially carrying out polymerization in a viscosity induction period, a viscosity risk period and a viscosity termination period on the polymerization reaction precursor solution; and extruding and granulating: extruding and granulating the polymerization product, and drying. According to the invention, silane modified graphene is adopted for ultrasonic dispersion to construct a heat conduction path in a system, and a differential temperature control strategy of three-stage segmented polymerization is combined, so that an ultrasonic standing wave field is started in a targeted manner in a viscosity risk period, and cooling flow is regulated in a linkage manner, and therefore, the heat transfer efficiency in a high-viscosity stage is synergistically enhanced; and the polymerization reaction temperature is uniform and stable.

The invention relates to the technical field of wastewater treatment, and discloses an efficient intelligent mine wastewater treatment control method which comprises the following steps: applying an ultrasonic standing wave field to wastewater to form a pollutant enrichment area and a relative clear water area; acquiring electrical response characteristics of the pollutant enrichment area; comparing the electrical response characteristic obtained in real time with a preset target response characteristic, and generating an error signal to determine a frequency adjustment amount; finally, the driving frequency of the ultrasonic standing wave field is dynamically adjusted based on the frequency adjustment amount, and self-adaptive resonance closed-loop control is formed. By constructing closed-loop feedback, the optimal resonant frequency of the system can be tracked and locked in real time, and high efficiency and stability of the pre-enrichment process are ensured. In addition, the structured water flow formed by the method is favorable for realizing targeted addition of a flocculating agent and low-energy-consumption bridging reaction at the downstream, so that the medicament consumption, the energy consumption and the sludge yield are remarkably reduced.

This invention relates to the field of 3D printing technology, specifically a 3D printing device for shoe sole molding; it includes a main drive extrusion mechanism, a nozzle body, an ultrasonic standing wave intervention mechanism, and a fluid antagonism compensation mechanism; the device combines an internal main channel with an outer annular blind chamber design, and utilizes a flexible titanium alloy diaphragm and high-temperature resistant silicone oil to construct a fluid antagonism compensation system; its core is the ultrasonic standing wave intervention mechanism, which dynamically adjusts the output of the piezoelectric ceramic oscillators on both sides according to the curvature of the printing path, inducing polymer molecular chain shearing thinning in the straight filling area to reduce resistance, and promoting molecular chain re-entanglement in the sharp bend or overhang area; this invention overcomes the time lag of traditional temperature control, and uses acoustic field intervention to achieve instantaneous switching of the melt rheological state, effectively solving the problems of easy flow interruption and severe sagging and collapse in dot matrix trajectory printing.