129 results about "Microwave effect" patented technology

An apparatus, system, and method, for using circular mode magnetic microwave energy to heat the product in a continuous microwave process. The microwaves are generated and transmitted as rectangular waveguide mode microwave energy, and are converted by mode converters to circular magnetic mode microwave energy. As circular magnetic mode microwave energy, the microwave energy passes through a material and is reflected on the other side back into the material, thus traveling through the material a second time. Reflected microwave energy from the main reflected wave as well as reflections from other structures, surfaces and layers in the system travel back toward the microwave source. They are sensed, and a computer tuning system causes capacitive probes to generate offsetting microwave reflections, which are opposite in phase and equal in magnitude to the sum of all of the reflected waves. These induced reflections cancel and negate the reflected microwaves, resulting in optimum utilization of microwave energy to heat the product.

The present invention discloses waste water treating microwave and light catalyzing method and apparatus. After grille depurating, still standing to deposit and pH regulation, the waste water to be further treated is microwave and light catalyzed in the waste water treating microwave and light catalyzing apparatus. The apparatus includes microwave reaction oven, waste water reaction chamber inside the microwave reaction oven, no-electrode lamp inserted inside the annular fixer on the inner wall of the waste water reaction chamber, and quartz stirrer set inside the waste water reaction chamber with shaft connected to the outer rotating motor. The present invention has prolonged service life of no-electrode lamp, raised photocatalytic degrading efficiency, simple apparatus, low power consumption and other advantages, and the combined microwave effect and photocatalytic oxidizing technology results in high organic matter eliminating rate.

The invention relates to a cordierite type microwave medium ceramic material and a preparation method thereof. The chemical formula of the microwave ceramic is Mg<2>Al<4>(Si<5-x>Ti<x>)O<18>, 0.05=<x=<0.40. The preparation method comprises the following steps: precisely weighing powder of oxides of each element in the chemical formula according to the chemical formula, mixing, evenly grinding, pre-burning, granulating, pressing granules into sheets, moulding, sintering to prepare ceramic, mechanically processing the ceramic to prepare a dielectric resonator in the late period, and carrying out a microwave test on the dielectric resonator. The disclosed microwave ceramic has a low dielectric constant, a high quality factor, and a temperature coefficient of resonance frequency, which is close to zero, and thus is suitable for being used as a substrate material of a microwave circuit.

The invention belongs to the technical field of resource recycling, and discloses a comprehensive recycling method for waste SCR catalysts. The method includes the steps that the waste SCR catalysts are mechanically pulverized and then added into an H2SO4 solution, vanadium is leached out under the microwave effect, and pickle liquor and leaching cinder are obtained after solid-liquid separation; the leaching cinder is delivered into an ammonia water solution, tungsten is leached out under the microwave effect, leach liquor containing ammonium tungstate is obtained after solid-liquid separation, ammonium paratungstate can be obtained after evaporative crystallization, and coarse TiO2 is a filter residue; vanadium is extracted from the pickle liquor through 5,8-diethyl-7-hydroxy-6-dodecanone oxime and trioctylamine, and then reverse extraction is conducted through a sodium hydroxide solution; and the pH value of strip liquor is adjusted to 8-10, ammonium chloride is added for vanadium precipitation, and an ammonium metavanadate product is obtained. By means of the method, the recovery rate of vanadium and tungsten is high, leaching time is short, and the purity of the ammonium metavanadate product is high; the technical process is simple, equipment cost is low, energy consumption is small, and the method is suitable for industrial application.

Synthesis of molecular sieve membrane from in-situ aging and micro-wave heating is characterized by preparing molecular sieve synthetic liquid with formula aNa2O:Al2O3:bSiO2:cH2O, which is a=20í½80, b=3í½15, c=500í½4000, putting porous base membrane into synthetic liquid, in-situ aging synthetic liquid at 30íÒCí½100íÒC for 3í½10hrs before microwave heating, synthesizing by microwave heating at 50íÒCí½100íÒC for 10í½60mins, washing and drying. It has better separating and repeating performances.

The invention discloses polymer powder subjected to surface chemical grafting modification. In the polymer powder, a reactive alkoxy silane group is chemically linked to the surface of polymer powder particles, the average grain diameter of the solid particles is between 5 microns and 800 microns, and the C/Si atom proportion on the surface of the polymer particles, measured by an X-ray photoelectron spectroscopy (XPS), is 100:(6-30). The invention also discloses a preparation method of the surface modified polymer solid particles, and the method comprises microwave promoted hydrolytic condensation of a specific functional group-containing silane coupling agent in a solvent-diluted hydrochloric acid system and grafting reaction of the specific functional group to the polymer chain under microwave promotion, wherein the hydrolytic condensation of the silane coupling agent and the microwave effect can be used for improving the grafting efficiency of the surface of the polymer powder particles. The modified polymer powder prepared according to the technology provided by the invention is applied to a cement mortar system, and the impact toughness of curing concrete can be remarkably improved.

The invention discloses a microwave excitation coal-bed gas desorption and seepage experimental device, and belongs to coal-bed gas desorption and seepage experimental devices. The microwave excitation coal-bed gas desorption and seepage experimental device comprises a tri-axial pressure device and a microwave generating device. The tri-axial pressure device comprises an upper gland, a lower gland, a barrel, a piston, a barrier, an upper pressure head and a lower pressure head, the microwave generating device comprises a microwave antenna, a waveguide tube, a resonant cavity, a magnetron and a controller, the upper gland and the lower gland are respectively arranged on the upper portion and the lower portion of the barrel, the piston is arranged inside the lower gland, the barrier is fixed onto the inner side wall of the lower gland, the lower pressure head is arranged inside the lower gland, and the microwave antenna is arranged on the inner side wall of the barrel; the upper pressure head is arranged in the barrel, and the waveguide tube, the resonant cavity, the magnetron and the controller are arranged on the outside of the barrel. The microwave excitation coal-bed gas desorption and seepage experimental device has the advantages that desorption and seepage functional tests can be carried out on coal, desorption and seepage laws of the coal under a microwave effect can be acquired, and reliable data can be provided for reasonably draining and comprehensively utilizing coal-bed gas resources.

The invention relates to a method for preparing a molecular sieve ZSM-5 by preparing a precursor glue solution, crystallizing, filtering, drying and roasting. The invention adopts two crystallization methods, one method comprises the following steps of: directly illuminating the precursor glue solution in a sealed container by adopting a microwave field, and crystallizing by utilizing the coaction of the microwave effect and the autogenous hydrothermal pressure of the glue solution; and the other method comprises the following steps of: heating the precursor glue solution in the sealed container by adopting saturated steam for crystallization treatment, wherein the heating and the crystallization treatment can be simultaneously carried out in the microwave field. The saturated steam for the crystallization treatment is crystallized at 170-180 DEG C for 1-6h, 1-10 percent by weight of inoculating seeds are added after aging the precursor glue solution and before crystallizing the precursor glue solution which is prepared by adopting a template-free preparation method. The method of the invention has the following advantages of simple and practical process and uniform temperature in the crystallization process, obtains the molecular sieve with high crystallinity, pure crystal phase, controllable grain size, wider range and short crystallization time, can improve the production efficiency, decrease the cost and save energy.

The invention discloses a microwave detection system for complex foreign matters in vivo based on the template signal similarity. Microwave defection, especially interior detection for materials, is widely applied and has the advantages of safe and frequent utilization and high portability. However, the microwave detection technology is still at an exploration stage for complex-structure detection objects in which to-be-detected target foreign matters have no significant difference with the dielectric constants of normal structural bodies, especially for the field of biomedicine detection. The microwave detection system provided by the invention is based on the template signal similarity, especially based on the signal similarity comparison between microwave measurement signals and corrected simulation template signals, so that the microwave detection system can be used for judging whether a foreign matter exists in an object or not and judging the position and size of a target foreign matter.

The invention discloses a preparation method of a carbon fiber multi-scale reinforced composite component based on carbon nano-tube reinforcement, which is characterized by comprising the following steps of stripping a carbon nano-tube array or powder grown by chemical vapor deposition from a substrate, and putting into a closed quartz tube filled with inert gas; placing the quartz tube in a microwave field; after high-temperature thermal treatment under a microwave effect, transferring the carbon nano-tube array or powder onto a film; putting the carbon nano-tube array or powder together with the film to a vacuum guide-in mould platform by use of a vacuum bag, and vacuumizing; guiding in resin through a guide tube, and sufficiently soaking the carbon nano-tube array or powder; placing the soaked carbon nano-tube between the composite pre-soaking material layers to form a multi-scale reinforced structure with carbon fiber; putting the uncured carbon fiber multi-scale reinforced composite containing the carbon nano-tube in the microwave field; heating, curing and forming a high-performance functionalized composite component in the microwave field. The method disclosed by the invention can remarkably improve the shock compression resistance and interlayer shear resistance of the component.

The invention provides a method for preparing blue emission carbon quantum dots. According to the method, carbon quantum dots are synthesized by a microwave method, and dehydration-condensation reaction generated under the microwave effect between amino acid and ethylene glycol is utilized to form carbon quantum dots. The method is a one-step preparation method, is quick, efficient and simple. Furthermore, the invention further develops application of the blue emission carbon quantum dots in oneness detection of antibiotics, and provides a novel method for quantitatively detecting metronidazole. The aim of quantitative detection can be achieved by utilizing optical sensing between metronidazole and carbon quantum dots, and the method is quicker, simpler, more convenient and more intuitive than other methods.

The invention discloses a device and a method for repairing heavy metal polluted field soil through microwave-assisted chemical washing. The device comprises a washing agent storage tank, a high-speed stirring soil and water mixing device, a first lifting pump, a transmission type microwave reinforcement reaction integration system, a settling pool, a mud and water separation system, a washing liquid recovery tank, a second lifting pump and a washing liquid purification regeneration device. Polluted soil, after in-situ crushing and screening, and a washing agent are added in the high-speed mixing device for uniform mixing; then, the transmission type microwave reaction integration system is opened for microwave washing; heavy metal can be removed from the soil in a short time under a microwave effect, and is conveyed along with a conveying belt; mud and water mixed liquid, after the reaction, is directly poured into the settling pool; supernatant in the settling pool directly enters the washing liquid recovery tank; settled mud passes through the mud and water separation system; separated liquid enters the washing liquid recovery tank; and the soil is filled back after being repaired. The recovered washing liquid is filtered, purified, regenerated and recycled.

The invented scheme is a microwave dyeing technology to guarantee energy-saving high-efficiency and environmental protection, and effectively fulfill energy-saving and emission-reduction purposes. The scheme is characterized by microwave or nanometer wave radiation on fabrics in padding dyeing material solution, so that polar molecule dipoles in the fabrics can be affected by a microwave high-frequency electric field; with help of the microwave effects, heat-peaching and temperature rising happen to dyeing material molecules, in order that the targets of fast dyeing and color fixing can be fulfilled together with advantages of being green and environmental protection.

The invention relates to a biomass carbon base composite hybrid material and a preparation method thereof, and especially relates to a biomass carbon base and copper and/or cuprous oxide hybrid material and a preparation method thereof. According to the method, soluble copper salt, an ionic liquid and a cellulose raw material solution are mixed and subjected to a reaction under a microwave effect, such that the biomass carbon base and copper and/or cuprous oxide hybrid material with excellent catalytic performance is obtained.

The present invention related to devices and methods that use returned power (RP) measurements during microwave energy delivery to perform one or more functions. For example, microwave devices and systems that comprise one or more features to measure the returned microwave power. One or more measurements of the returned microwave power may be used to obtain information about one or more of: antenna shape, system status and system performance. One or more measurements of the returned microwave power shaping elements may also be used to obtain information about one or more properties of the target material. The invention also discloses devices and methods for delivering microwave energy to a variety of target materials to achieve a variety of desired microwave effects.

The invention discloses a method for preparing a titanium nitride/chromium nitride coating based on the microwave technology. The method comprises the following steps: (1) coating the surface of a workpiece with a layer of uniform and dense titanium-chromium material layer, wherein the titanium-chromium material is formed by mixing titanium powder, chromium powder and an adhesive; (2) putting the coated workpiece into a microwave device, and performing microwave heating in a nitrogen atmosphere; and (3) performing surface cleaning and polishing of the workpiece after the microwave effect to obtain a titanium nitride/chromium nitride coating on the surface of the workpiece. With a high heating speed, the method disclosed by the invention can obtain the required coatings with different thickness; and the binding force between the coating and the workpiece is strong.

The invention discloses a method for preparing a large-mixing-amount low-quality mineral admixture recycled cement-based product through microwave curing. The preparation method of the recycled cement-based product comprises the following steps: mixing a recycled aggregate with alkali liquor in a vacuum environment, ultrasonically dispersing and mixing a mixture of the alkali-treated recycled aggregate, a low-quality mineral admixture, a dispersing agent and the water, putting the mixture into the vacuum environment again, adding cement and a fine aggregate, stirring and molding, and curing and accelerating coagulation of a molded cement-based product under the action of microwaves. According to the method, the hydration hardening rate of cement-mineral admixture slurry can be increased through the microwave effect, and early performance increase of the cement-based product is promoted; besides, under the action of the microwaves, the modification effect of the alkali liquor on the recycled aggregate and the alkali-activated activity of the low-quality mineral admixture are subjected to accelerated reaction in pores of the recycled aggregate, filling is compact, the defects that the recycled aggregate is large in porosity, large in water absorption rate and the like can be effectively overcome, and the long-term mechanical property and durability of a cement-based product are improved.

The invention discloses a method for preparing hydrophobic nano-white carbon black by virtue of a sol-gel method. According to the method, rice hull ash and bentonite are taken as the raw materials, the rice hull ash is subjected to acid pickling and impurity removal, the bentonite is subjected to acid pickling under a microwave effect and reacts with sodium hydroxide in a microwave reaction manner so as to generate a water glass liquid, the water glass liquid is taken as a silicon source, ammonia water is taken as a catalyst, and the prepared white carbon black is small in particle size, large in specific surface area and high in purity and has excellent physical and chemical properties; vinyl silane is taken as a modifying agent, hydrophobic group vinyl is successfully grafted to the surface of the white carbon black by virtue of the sol-gel method, so that the hydrophobicity of the white carbon black is improved, the interaction effect between the white carbon black and silicone rubber is enhanced, and the white carbon black can be widely applied to the fields of low, middle and high-end rubber products, special-use coatings, silicone rubber products and the like and can be particularly applied to the field of insulating silicone rubber products.

The present invention is microwave heating for regenerating carbon smoke particle filter in diesel engine. There are microwave element installed outside the wall flow type honeycomb ceramic filter, metal casing for the filter and the microwave element to be installed inside, and inlet gas pressure sensor and outlet gas pressure sensor set separately in the inlet end and the outlet end of the metal casing. The microwave element has its one end connected via a relay to the positive electrode of the power supply and the other end to the negative electrode; and the inlet gas pressure sensor, the outlet gas pressure sensor and the relay are connected separately with the electronic control system. Under the control of the electronic control system, the microwave element works timely and the generated microwave heats and burns out the carbon particle deposited onto the filtering material to realize the regeneration of the filtering material.

The invention relates to a method of producing expanding vermiculite with a microwave method. The method comprises the steps as follows: microwave is adopted to expand for the vermiculite and interactive effect happens between the microwave and the vermiculite. The microwave effect causes water shake acutely among vermiculite layers. The partial temperature among layers arises rapidly and water among layers boiloffs rapidly. The vaporization water produces partial pressure to maintain the vermiculite layers and the layers. The invention has the macroscopic behavior that the vermiculite expands rapidly, and avoids the process of temperature expansion, thereby resolving the problem of brickle vermiculite after expansion. Simultaneously, as the vermiculite is cleaned before the expansion, the content of impurity is decreased and the quality of vermiculite after expansion is improved. The high-quality expanded vermiculite made by adopting the method can be used in the application fields such as high-quality expansion vermiculite powder for producing high-temperature mechanism part heat barrier coating, bulking agent for composing the organic clay composite material, filling material of energy-saving heat preservation wall and materials for producing high-quality heat insulation vermiculite boards.

The invention discloses a sewage processing agent with addition of a synergist, which comprises the following raw materials of sewage plant activated sludge, a composite adsorbent, coke slag powder, concentrated sulfuric acid with mass concentration being more than 90%, calcium oxide and the composite synergist. The raw materials have the advantages of wide source and low cost; the main raw material can be obtained by compositing the sewage plant activated sludge and the coke slag powder and the acidified composite adsorbent under microwave effect, and the main raw material is mixed with calcium oxide and the composite synergist in order to obtain the sewage processing agent. The method has the advantages of simple process and low cost. According to the sewage processing agent for processing sewage, the discharge quality of the processed sewage can exceed a national first level standard; and the sewage plant activated sludge at bottom of a comprehensive treatment pool can be used for preparing organic fertilizer or biomass fuels.

The present invention relates to a method for micronization of a material having a human body far-infrared ray wave band, wherein a material storing far-infrared ray energy is grinded into powder through a -20-70 DEG C temperature grinding process, the average particle size of the powder is micron to nanometer, preferably less than 100 nm, and the far-infrared ray wavelength range of the material is 6-14 mum and meets the human body wavelength range of 8-12 mum. According to the present invention, micronization is adopted to increase the total surface area, such that the radiation area of the far-infrared ray is substantially increased so as to increase the effect of the far-infrared ray having the wavelength suitable for the human body; and the material can exist in the nanometer dispersion state and has the quantum activation microwave effect, such that the radioactivity is stable, and the effects of metabolism promotion, blood circulation promotion and cell activation are provided.