39results about How to "Intensity can be controlled" patented technology

The invention provides a preparation method for a vanadium-aluminum alloy and a reactor. The preparation method provided by the invention comprises the following steps: 1) mixing a vanadium source, analuminum source and a slag former to obtain a material mixture; 2) heating the material mixture to obtain a reaction product; and 3) under a vacuum-pumping condition or protective gas introducing condition, cooling the reaction product to obtain the vanadium-aluminum alloy. The reactor comprises a U-shaped container, a reaction container arranged in the U-shaped container, a heating device positioned on the outer wall of the reaction container, and a filler arranged between the U-shaped container and the reaction container. The preparation method provided by the invention solves the problemsthat a vanadium yield is low, the alloy separating effect is poor and an oxidization film appears in the prior art, overcomes splash due to fierce reaction, volatilization, due to a high temperature,of vanadium pentoxide, poor alloy separating effect, and vanadium loss due to the fact that the vanadium-aluminum alloy enters a slag phase.

The invention belongs to the field of laser advanced manufacturing, and discloses a method capable of giving consideration to laser melt injection efficiency, composite layer depth and metallurgical quality. According to the method, a molten pool is formed on the surface of a metal base material through a laser beam, and meanwhile, a substrate is subjected to synchronous preheating through an induction coil; and then, ceramic reinforced particles are poured into the molten pool, the reinforced particles which are not completely molten are caught in the molten pool, and accordingly, and a particle-reinforced metal ceramic composite layer is formed on the surface of the metal base material. Induction preheating is synchronously introduced into the traditional laser melt injection technologytreatment process, the cooling rate of the molten pool can be properly decreased, nucleation of the brittle metal compound in the molten pool is inhibited, the problem that cracking occurs due to thefact that the precipitation amount of the brittle compound in the traditional metal ceramic composite layer laser melt injection process is too large is solved, and the intensity of interfacial reaction is effectively controlled while the laser melt injection efficiency and the composite layer depth are remarkably improved.

The invention belongs to the technical field of synthesis and foaming of polyurethane and particularly provides a processing technique for a polyurethane heat insulating plate. The processing technique comprises step I to step VII; the step I to step IV are used for pretreating raw materials; the step V to step VII are used for carrying out foaming reaction of the raw materials; the technique adopts a foaming device; the foaming device comprises a mixing unit, a water control unit and a foaming unit; the mixing unit comprises a mixing bin, a heating cylinder, four mixing plates, a rotating rodand a motor; the mixing bin is cylindrical; the left side of the upper surface of the mixing bin is provided with a No.1 opening; the hating cylinder is fixedly installed inside the mixing bin; the four mixing plates are arranged inside the cylindrical heating cylinder; the mixing unit is used for mixing the raw materials; and the water control unit is matched with the foaming unit so as to foamthe raw materials. The processing technique provided by the invention is mainly used for implementing large-batch production of heat insulating materials, can improve the uniformity of the raw materials, can make the raw materials be foamed fully and improves the foaming efficiency of the raw materials.

The invention discloses a harmless treatment method for metal lithium. The method comprises: (1) reacting metal lithium and an atomized reactant to obtain a lithium-containing mixture; (2) immersing the lithium-containing mixture obtained in the step (1) into a reactant to carry out a reaction to obtain a lithium-containing solution. The reaction process is controlled by controlling the dosage ofthe atomized reactant, and a passivation layer generated by the atomized reactant and the metal lithium covers the metal lithium to retard the reaction process; after the lithium-containing mixture which is incompletely reacted is immersed into the reactant for neutralization, the passivation layer is dissolved into the reactant, and the metal lithium in the passivation layer solution reacts withthe reactant. The reaction process is controlled by substep control, the severity of the reaction is controlled, and safety of harmless treatment of the metal lithium is improved. Through feeding carbon dioxide, frequent treatment or adjustment of the component concentration of the passivation layer in the reactant is avoided, and lithium carbonate which can be easily and safely recovered is obtained.

The invention relates to a pesticide spraying plant protection unmanned aerial vehicle. The pesticide spraying plant protection unmanned aerial vehicle comprises an outer frame, a water inlet controldevice, swinging devices and an opening and closing cover, the water inlet control device is installed inside the outer frame, the swinging devices are uniformly arranged on the outer wall of the outer frame, and the swinging devices are connected with the water inlet control device; the opening and closing cover is arranged at the upper end of the outer frame, and an unmanned aerial vehicle bodyis connected with the water inlet control device in a threaded mode. According to the pesticide spraying plant protection unmanned aerial vehicle, the difficult problems that during pesticide sprayingof existing unmanned aerial vehicles, nozzles are usually arranged fixedly, thus the spraying range is limited, part of agriculture and forestry plants may not be sprayed, and spraying cannot be controlled according to the actual situation can be solved, the water inlet control device adopts an injection-type piston principle to control water sources of first nozzles and second nozzles, thus theconcentration of pesticide spraying during operating is controlled, and the first nozzles and the second nozzles in the swinging devices swing synchronously through a four-bar mechanism principle, andconduct reciprocating swinging under driving of reciprocating air cylinders, so that the spraying range is expanded.

The invention relates to the technical field of processing of dehydrated vegetables, in particular to combined hot-wind continuous drying equipment. The combined hot-wind continuous drying equipment comprises a hot blast stove, a wind distribution chamber and a continuous dryer. The hot blast stove is connected with the wind distribution chamber. The wind distribution chamber is connected with the continuous dryer. The hot blast stove comprises a natural wind inlet and a hot wind outlet. The hot wind outlet of the hot blast stove is connected with the wind distribution chamber. The wind distribution chamber comprises a main wind chamber body and at least three distribution air ducts connected with the main wind chamber body. Hot wind is distributed into the distribution air ducts through the wind distribution chamber and then enters at least three drying inner cavities. Along with the continuous lengthening and even turning of a hot wind drying chamber, the wind distribution chamber can be lengthened accordingly, the distribution air ducts are enlarged accordingly, and the drying inner cavities are enlarged accordingly so that the hot wind can still be distributed into each drying inner cavity, and accordingly the hot wind is blown out below a screen to be used for drying vegetable materials; the equipment is reasonable in structural design, and the temperature and the strength of the hot wind can be controlled.

The invention relates to a multi-photon confocal microscopic cell image based ultra-pixel refactoring segmentation and reconstruction method, which comprises the steps of firstly selecting a plurality of multi-photon confocal microscopic cell images to be processed, and converting the plurality of multi-photon confocal microscopic cell images into a CIELAB color space from an RGB format; determining the number of ultra-pixels in each image, and determining the position of a central pixel point gc of each ultra-pixel; carrying out clustering on each pixel, calculating the distance D between each pixel and central pixels of a plurality of nearest super-pixels, and determining which ultra-pixel each pixel belongs; marking each super-pixel, marking pixels contained by each super-pixel, determining the boundary of each super-pixel, mapping the boundary of each super-pixel to the original image, acquiring an initial segmentation image, carrying out post processing on the initial segmentation image, and acquiring a segmentation image of the multi-photon confocal microscopic cell image; and finally, carrying out three-dimensional reconstruction on the segmentation image. According to the invention, observation for growing conditions of a cell in different periods can be realized.

The invention discloses a synthesis method of chromium 2-pyridylformate, which comprises the following steps: by using 2-methylpyridine, potassium permanganate and chromium chloride alcoholic solution as raw materials, adding a phase-transfer catalyst to synthesize the chromium 2-pyridylformate, wherein the phase-transfer catalyst is a quaternary ammonium salt or quaternary phosphonium salt in onium salt phase-transfer catalysts, preferably ammonium tetrabutylbromide, ammonium tetrabutylchloride or phosphonium methyltriphenylbromide. The method disclosed by the invention uses the phase-transfer catalyst to enable the sufficient reaction of 2-methylpyridine in an inorganic reaction environment, thereby enhancing the reaction yield (up to higher than 71%); the methanol or ethanol is used as the solvent to enhance the yield of the reaction step; and the solvent is recyclable, thereby saving the raw material cost, promoting the effective performance of the complex reaction, enabling the product to precipitate sufficiently, enhancing the maximum product yield by nearly 40%, and ensuring the yield and quality of the product.

The invention relates to the technical field of processing of dehydrated vegetables, in particular to combined hot-wind continuous drying equipment. The combined hot-wind continuous drying equipment comprises a hot blast stove, a wind distribution chamber and a continuous dryer. The hot blast stove is connected with the wind distribution chamber. The wind distribution chamber is connected with the continuous dryer. The hot blast stove comprises a natural wind inlet and a hot wind outlet. The hot wind outlet of the hot blast stove is connected with the wind distribution chamber. The wind distribution chamber comprises a main wind chamber body and at least three distribution air ducts connected with the main wind chamber body. Hot wind is distributed into the distribution air ducts through the wind distribution chamber and then enters at least three drying inner cavities. Along with the continuous lengthening and even turning of a hot wind drying chamber, the wind distribution chamber can be lengthened accordingly, the distribution air ducts are enlarged accordingly, and the drying inner cavities are enlarged accordingly so that the hot wind can still be distributed into each drying inner cavity, and accordingly the hot wind is blown out below a screen to be used for drying vegetable materials; the equipment is reasonable in structural design, and the temperature and the strength of the hot wind can be controlled.

The invention relates to the magnetoelectric technical field, in particular to a method for utilizing low energy consumption to control the external magnetic field strength of a permanent magnet, wherein, firstly, a first closed magnetic field assembly is closely piled up together with a second closed magnetic field assembly; secondly, magnet blocks on the first closed magnetic field assembly are alternately taken off one by one to form a first isolated magnetic field assembly; thirdly, magnet blocks on the second closed magnetic field assembly are fixed together with magnetic blocks on the first isolated magnetic field assembly to form magnetic stators; fourthly, both poles of residual magnet blocks are cut to generate gaps between the poles and the magnetic stators, and the magnet blocks are integrated into a whole by fixation to form a reciprocating magnet; fifthly, the reciprocating magnet is pushed forward; when the reciprocating magnet enters into the first isolated magnetic field assembly, the prior second closed magnetic field assembly becomes the second isolated magnetic field assembly and the prior first isolated magnetic field assembly becomes the first closed magnetic field assembly, thereby realizing the control to the external magnetic field strength of the permanent magnet by variation of positions of the reciprocating magnet.

The invention relates to the technical field of hazardous waste pretreatment and particularly relates to a treatment method of reactor residues of 2-octyl-3(2H)-isothiazolone. The method comprises (1) distilling to obtain a solvent of which the mass is 45 to 50% the total mass of the mother liquor, and (2) adding a liquid alkaline of which the mass is 50 to 60% that of the mother liquor into the reactor residues drop by drop through a liquid alkaline dropwise addition pot in 4 to 5h, heating the materials to 60 to 70 DEG C, and stirring the mixture for 10 to 15h, wherein in stirring, low temperature water at a temperature of 8 to 10 DEG C is fed into a jacket of the treatment reactor so that the mixture is cooled to 25 to 27 DEG C. The method is simple in operation, does not need to be manually operated by tools such as a feeding pump, utilizes pipelines prepared in the workshop and is operated closedly.

The invention aims to provide a sewage treatment and power generation device based on nano metal powder. The sewage treatment and power generation device comprises a sewage storage tank, a power generator and a condenser, wherein a nano metal powder container filled with the nano metal powder is arranged above the sewage storage tank and is communicated with the sewage storage tank through a nano metal powder inlet, a sewage inlet is formed in the sewage storage tank, the sewage storage tank is connected with a pipeline, the power generator and the condenser are sequentially arranged on the pipeline, and a water outlet is formed in the condenser. Sewage is sterilized and disinfected by using heat released by reaction of the nano metal powder and water, the reaction is rapid and the effect is remarkable; through controlling the particle diameter of the nano metal powder, the intensity of the reaction can be well controlled so that the reaction is safely and smoothly carried out; water vapor generated by the sewage is utilized to push the power generator to generate electricity, so that the energy utilization rate is increased; the water vapor is condensed and recovered after applying work, so that resource recycling is realized.

The invention relates to the magnetoelectric technical field, in particular to a method for utilizing low energy consumption to control the external magnetic field strength of a permanent magnet, wherein, firstly, a first closed magnetic field assembly is closely piled up together with a second closed magnetic field assembly; secondly, magnet blocks on the first closed magnetic field assembly arealternately taken off one by one to form a first isolated magnetic field assembly; thirdly, magnet blocks on the second closed magnetic field assembly are fixed together with magnetic blocks on the first isolated magnetic field assembly to form magnetic stators; fourthly, both poles of residual magnet blocks are cut to generate gaps between the poles and the magnetic stators, and the magnet blocks are integrated into a whole by fixation to form a reciprocating magnet; fifthly, the reciprocating magnet is pushed forward; when the reciprocating magnet enters into the first isolated magnetic field assembly, the prior second closed magnetic field assembly becomes the second isolated magnetic field assembly and the prior first isolated magnetic field assembly becomes the first closed magnetic field assembly, thereby realizing the control to the external magnetic field strength of the permanent magnet by variation of positions of the reciprocating magnet.

The invention provides high-purity triallyl ammonium chloride and a preparation method thereof. According to the method, triallylamine is dissolved in a non-polar organic solvent, hydrogen chloride gas is slowly introduced into an organic liquor for a reaction under the cooling condition, a product obtained after the reaction is subjected to liquid-solid separation, a solvent on the surface of a solid is dried, and the high-purity triallyl ammonium chloride product is obtained. The triallylamine is dissolved in the nonpolar organic solvent, so that the reaction concentration of triallylamine is controllable, the nonpolar organic solvent can better transfer heat, and the system temperature is kept stable. Hydrogen chloride gas is introduced into a reactor, hydrogen chloride gas and triallylamine are subjected to a reaction on the bubble surface by use of the principle of surface reactology, the problem of violent reaction due to direct addition of hydrochloric acid or hydrogen chloridegas to triallylamine is solved, and the safety is improved.

The invention belongs to the technical field of oil crop planting, and particularly relates to a special oilseed rape aerial seeding device which comprises a flying mechanism, L-shaped plates are longitudinally and fixedly arranged at the lower end of the flying mechanism, a rapeseed containing box is fixedly arranged between the two L-shaped plates through a fixing mechanism, and a discharging hopper is fixedly arranged on the lower side wall of the rapeseed containing box. A discharging pipe is fixedly arranged on the lower side wall of the discharging hopper, a discharging speed adjusting mechanism is arranged in the discharging pipe, symmetrical seeding pipes are fixedly arranged on the side wall of the discharging pipe, symmetrical rotating pipes are arranged at the lower ends of the two seeding pipes in a sleeving manner, annular grooves are formed in the pipe walls of the two seeding pipes, and the rotating pipes are arranged in the annular grooves. Symmetrical limiting blocks are fixedly arranged on the inner walls of the two rotating pipes, so that the discharging speed can be conveniently adjusted according to the soil condition and the sowing season, the sowing density of the rapeseeds is controlled, and the later growth of the rapeseeds is more convenient.

The invention provides high-purity diallyl ammonium chloride and a preparation method thereof. According to the method, diallylamine is dissolved in a nonpolar organic solvent in a certain ratio, hydrogen chloride gas is slowly introduced into an organic liquor for a reaction under the cooling condition, a product obtained after the reaction is subjected to liquid-solid separation, a solvent on the surface of a solid is dried, and the high-purity diallyl ammonium chloride product is obtained. The diallylamine is dissolved in the nonpolar organic solvent, so that the reaction concentration of diallylamine is controllable, the nonpolar organic solvent can better transfer heat, and the system temperature is kept stable. Hydrogen chloride gas is introduced into a reactor, hydrogen chloride gasand diallylamine react on the bubble surface by use of the principle of surface reactology, the problem of violent reaction due to direct addition of hydrochloric acid or hydrogen chloride gas to diallylamine is solved, and the safety is improved.

The invention provides modified spacer powder, a preparation method thereof and a liquid crystal handwriting board, and belongs to the technical field of liquid crystal materials. The modified spacerpowder provided by the invention is photoinitiator grafted spacer powder, a photoinitiator is benzoin methyl ether or Irgacure 651, and the spacer powder is polystyrene microspheres or polymethyl methacrylate microspheres; and the photoinitiator is connected with the spacer powder through a covalent bond. The modified spacer powder provided by the invention has good compatibility with liquid crystal in liquid crystal layer feed liquid, and the smoothness of handwriting of the liquid crystal handwriting board is improved. Moreover, the photoinitiator grafted on the modified spacer powder can initiate polymerization of polymeric monomers in the liquid crystal layer feed liquid, and finally, the spacer powder can be inserted into a polymer network, so that the polymer network close to the spacer powder microspheres is dense. The purpose of controlling the density of polymer networks in the liquid crystal handwriting board is achieved by controlling the amount of the photoinitiator graftedon the spacer powder microspheres, and then the handwriting thickness of the handwriting board is controlled.