142results about How to "Avoid introducing" patented technology

The invention discloses a method for preparing a single-layer tungsten diselenide nanoband based on a space confinement strategy. By changing the flow and the growth time of hydrogen, effective control on the width and the thickness of a nanoband can be realized. The method comprises the following steps: uniformly spraying tungsten trioxide powder to one substrate, then covering the substrate by the other substrate, and forming micro reaction space which is of a 'sandwich'-like structure. Growth of a tungsten diselenide nanoband is carried out by utilizing a constant-pressure chemical vapor deposition method; physicochemical characteristics of a one-dimensional transition metal chalcogenide strongly depend on suspension key types on the edge of the one-dimensional transition metal chalcogenide, metallic properties are displayed by an ultranarrow band, and conversion from the metallic properties to semiconductor properties can be displayed from the edge to the center of a wider band; the tungsten diselenide nanoband is widely applied to micro-nano photoelectric devices due to the special property; industrial production of the tungsten diselenide nanoband can be realized through an experimental method of the invention.

This invention discloses an aqueous dispersion of a polyhydroxyalkanoate-grafted ethylene-acrylic acid copolymer with a self-emulsifying core-shell structure, its preparation method, and its recyclable paper packaging, belonging to the field of reactive modification of polymer materials and green packaging technology. This invention employs in-situ reactive extrusion technology to construct stable microparticles with a hydrophobic polyhydroxyalkanoate core and a hydrophilic ethylene-acrylic acid copolymer salt as the shell, overcoming the industry challenge of poor compatibility of bio-based materials. The aqueous dispersion requires no external emulsifier, achieving the same excellent barrier and heat-sealing effects with a lower coating weight, significantly reducing usage costs. Its unique alkali-induced swelling mechanism endows the coating with intelligent peeling properties, achieving efficient separation of the coating and fiber during resizing, greatly improving the purity of recycled fibers.

The application relates to a binocular image key point matching method based on a hierarchical optimization strategy and a medium, and the method comprises the following steps: S1, acquiring multiple pairs of left-right stereo image pairs; S2, processing the left-right stereo image pairs by using a deep neural network feature extractor to obtain left-right feature map pairs with different resolutions; S3, calculating matching cost volumes of the left-right feature map pairs to construct a matching cost volume pyramid; S4, obtaining an initial key point matching pair based on a matching cost volume with the lowest resolution; S5, calculating the matching cost between corresponding image blocks of the key point matching pair in a matching cost volume with a lower resolution, and taking a pixel pair corresponding to the matching cost satisfying local extremum as a key point matching result of the lowest level; and S6, repeating step S5, and performing layer-by-layer optimization on the matching cost volume pyramid in a manner from low to high resolutions until a final key point matching result is obtained. Compared with the prior art, the application has the advantages of high precision and strong robustness.

The invention provides a method for synergistically removing impurities through pH regulation and complexing of ionic rare earth ore leachate, the ionic rare earth ore leachate is stirred and mixed uniformly, a plant polyphenol sulfonic acid derivative complexing agent is added, the complexing agent is prepared through sulfonation, neutralization, concentration and drying by taking gallic acid as a raw material, and the complexing agent can automatically regulate the pH value of the solution and stabilize the pH value at 5.1-5.3; under the condition, phenolic hydroxyl groups, carboxyl groups and sulfonic functional groups in complexing agent molecules preferentially form stable precipitates with impurity ions such as Al < 3 + > and Fe < 3 + > in the leachate, and the complexing effect with rare earth ions (RE < 3 + >) is weak; and after the reaction is completed, carrying out solid-liquid separation to obtain the purified leachate and impurity-containing precipitation slag. The method solves the problem of ammonia nitrogen pollution caused by use of ammonium bicarbonate, ammonia water and other ammonium salts in the traditional process, is a novel method with high impurity removal rate, simple process flow and environmental friendliness, and is suitable for industrial application.

This invention discloses a method for preparing tin dioxide powder by freeze-drying to inhibit tin hydroxide agglomeration. The method involves adding a tin source solution (36-54 g / L) and a precipitant solution (5-30 g / L) at a mass ratio of 1:0.1-0.25 under constant temperature and magnetic stirring. The precipitant solution is then added dropwise to the tin source solution, reacting to form tin hydroxide colloid. After static aging, the colloid undergoes rapid cryogenic freezing to instantly freeze it into an ice state. The ice-state colloid is then subjected to low-temperature vacuum sublimation drying to obtain loose tin hydroxide dry powder. The dry powder is then calcined to obtain tin dioxide powder. This invention fundamentally eliminates the agglomeration of tin dioxide powder, resulting in tin hydroxide dry powder with an agglomeration rate of less than 10% and a purity of over 99.9%, providing a high-quality precursor for high-performance electronic-grade tin dioxide.

This invention discloses an optimization method for a dual-source FSI ranging system based on wavelet synchronous compression transform, mainly addressing the problems of high system complexity and poor performance in existing dual-source FSI ranging systems when separating mixed interference signals. The solution includes: constructing a dual-source FSI ranging optical path to generate mixed interference signals; building a signal processing module based on the wavelet synchronous compression transform algorithm; sending the mixed interference signals to the signal processing module through a data acquisition device in the ranging optical path; using wavelet synchronous compression transform to separate the interference signals generated by the two lasers in the frequency domain; then achieving separation of the individual interference signals by reconstructing the frequency bands of the two interference signals; and finally using the separated two interference signals to calculate the distance and obtain the final ranging result. This invention can guarantee ranging accuracy without increasing the complexity and design cost of the dual-source FSI ranging system.

The application provides a wafer automatic cleaning device and a wafer cutting machine. The wafer automatic cleaning device is used for cleaning a wafer and comprises a cleaning nozzle, a sensor, a deionization pump and a connecting pipe. The cleaning nozzle is arranged directly below a moving path of the wafer, and a side of the cleaning nozzle opposite to the moving path of the wafer is provided with a plurality of air blowing holes. The sensor is arranged on one side of the cleaning nozzle to detect position information of the wafer. The deionization pump is provided with a controller, and the controller is in communication connection with the sensor to control the deionization pump according to a state of the sensor. One end of the connecting pipe is communicated with the deionization pump, and the other end of the connecting pipe is communicated with the cleaning nozzle. The wafer automatic cleaning device realizes automatic cleaning of the wafer, does not cause damage to the wafer itself, reduces manual cleaning of a back surface of the wafer, avoids breakage and electrostatic breakdown problems caused by manual cleaning, avoids introduction of new particulate impurities in wafer transportation between front and rear process stations, and ensures cleanliness of the wafer during wafer operation.

The application discloses a preparation process of electronic-grade trans-1,2-cyclohexanediaminetetraacetic acid. The preparation process takes industrial-grade 1,2-cyclohexanediamine as raw material, reacts the 1,2-cyclohexanediamine with electronic-grade organic acid to generate a water-soluble salt, crystallizes at 0-30 DEG C, filters out the crystal to reserve the filtrate, adds an alkaline solution to the filtrate, then adds a polar organic reagent to extract, directly adds an aqueous bromoacetic acid solution to the oil phase to react, after the reaction is completed, adds electronic-grade dilute acid to precipitate trans-1,2-cyclohexanediaminetetraacetic acid until the PH of the system is less than or equal to 2, filters and reserves the solid, washes with pure water, and electronic-grade trans-1,2-cyclohexanediaminetetraacetic acid is obtained. The method has a clear process route, can effectively remove metal ion impurities in the synthesis process, the obtained trans-1,2-cyclohexanediaminetetraacetic acid product has high purity, can be used for preparing high-end semiconductor cleaning liquid, and meets the strict requirements of advanced processes on the purity of cleaning chemicals.

The invention provides a centrifugal collecting device. The centrifugal collecting device comprises a driving part and a driving part, the rotor assembly is connected with the driving piece; the liquid storage part is arranged on the rotor assembly, and the liquid storage part is provided with a liquid storage cavity; the flow guide assembly comprises a flexible flow guide pipe, and one end of the flexible flow guide pipe is connected with the liquid storage part and communicates with the liquid storage cavity; the flow adjusting part is connected with the rotor assembly, a slit is formed in the flow adjusting part, and under the condition that the flexible flow guide pipe is embedded into the slit, the flexible flow guide pipe deforms; the collection assembly comprises a treatment container, a filter part and a collection container, the filter part is arranged in the treatment container and divides the treatment container into a treatment chamber and a confluence chamber, the treatment chamber is communicated with the other end of the flexible flow guide pipe, and the confluence chamber is communicated with the collection container, that is, the effective stripping of the adsorbed secretions is realized; the dosage of a buffer solution is remarkably reduced, and the concentration of effective components in a collected solution is greatly improved, so that a detection result is closer to the content of real secretions in soil.

The application belongs to the technical field of biological medical materials, and discloses a polydopamine modified modified nano-graphyne and a preparation method and application thereof. In the method, the polydopamine coating is combined with the nano-graphyne for the first time to construct a GDY@PDA composite system, and the core defects of the blocky graphyne, such as easy agglomeration, poor water solubility and insufficient biocompatibility, are solved. The graphyne-based material is applied to the near-infrared two-region photothermal regulation of neural cell calcium influx for the first time, the calcium ion channel is activated through the local thermal effect of the material, and precise, remote and reversible calcium influx regulation is realized; the limitation that the traditional biocompatibility modification is easy to fall off and difficult to functionalize is broken through, the polydopamine modification makes the material have both photothermal efficiency and biological safety, and the application of the graphyne in the treatment of neural diseases (such as neural cell injury repair) is expanded.

The invention relates to an application of a combined composition nanoparticle in preparation of a medicine for resisting fungal and bacterial infection. The active components of the combined composition nanoparticle are antibiotics and antibiotic adjuvants, the antibiotic adjuvant is tripterine or a pharmaceutically acceptable salt thereof. Compared with the prior art, the tripterine or the medicinal salt thereof and the antibiotics are prepared into the nanoparticles by utilizing a nanotechnology, so that the solubility of the fat-soluble antibiotics is effectively improved, the biocompatibility of the tripterine or the medicinal salt thereof is improved, and the tripterine or the medicinal salt thereof has an excellent effect in resisting fungal and bacterial infection. The tripterine or the medicinal salt thereof can enhance the antibacterial effect, especially the antifungal effect, of the antibiotics, increase the antibacterial sensitivity of the antibiotics and inhibit the occurrence of fungal or bacterial drug resistance.

The invention discloses a high-simulation and high-performance stone-imitating bright ceramic tile which sequentially comprises a high-strength green body layer, a functional ground glaze layer, a multi-mode digital texture layer, an interface strengthening-optical adaptation transition layer and a high-transmittance protective glaze layer from bottom to top. The raw materials of the high-strength green body layer comprise spodumene tailing powder and a compound of zirconium silicate and zinc oxide serving as a sintering aid, the water absorption rate is smaller than or equal to 0.2% after sintering, the fracture modulus is larger than or equal to 42 MPa, the high-strength green body layer is covered with the functional ground coat layer, and the raw materials of the functional ground coat layer comprise a porous forming agent and active components capable of reacting with follow-up ink. According to the invention, through multi-modal data acquisition and morphology channel printing, full-dimensional physical recarving of natural stone from macroscopic color veins to micro-crystal fluctuations is realized, and high-refractive-index ink and an interface strengthening-optical adaptation transition layer are combined, so that the appearance of the natural stone is enhanced. The product can present the specific deep feeling, moist feeling and mineral crystal flash of natural stone under any illumination, and the vivid degree which is difficult to distinguish by naked eyes is achieved.

The application belongs to the technical field of power systems, and discloses an EIGD time-delay power system stability analysis method and device, wherein the method comprises the following steps: a linear model of the time-delay power system is established, and the differential equation in the model is converted into an abstract Cauchy problem by using an infinitesimal generator; a group of discrete points is selected for each time-delay interval of the time-delay power system, a discrete function space is established according to the discrete points, and the time-delay variable is discretized to generate a low-order partial infinitesimal generator discretization matrix; displacement and inverse transformation are performed on the discretization matrix to obtain an inverse matrix, and the characteristic value of the system is obtained according to the inverse matrix; the characteristic value is checked by using the Newton method to obtain the accurate characteristic value and the characteristic vector, and the stability of the time-delay power system is analyzed and judged. The method solves the problem of large matrix LU decomposition calculation amount in the existing EIGD time-delay power system characteristic value sparse calculation method based on the DDAE model.

The invention relates to a water treatment agent and a preparation method and application thereof, and the preparation method comprises the following steps: (1) adding an organic additive and hydrogen peroxide into an ammonia water solution to prepare a mixed solution I, carrying out electrolytic reaction, and aging to obtain sol; (2) dissolving acrylamide and a cationic monomer in water to obtain a mixed solution II; (3) adding the mixed solution II into the sol in the step (1) to obtain a mixed solution III; and (4) adding an initiator into the mixed solution III, and carrying out polymerization reaction to prepare the water treatment agent. According to the method disclosed by the invention, introduction of heteroanions is avoided, efficient in-situ polymerization of organic components on inorganic components is improved, the problem of low molecular weight of the medicament caused by initiation of an anion inhibition chain is solved, and the prepared medicament has excellent defluorination and flocculation capabilities.

The utility model discloses a filter plate off -line cleaning device for neutralizing sludge filter pressing, include: cleaning water tank, and the cleaning water tank is the cavity that is equipped with the opening in top portion, water distribution hole board, water distribution hole board places in the bottom of cleaning water tank, the bottom of water distribution hole board is equipped with aeration pipeline and liquid inlet pipe, is used for to the inside of cleaning water tank is aeration and adds liquid, support rib, support rib places in the both sides of cleaning water tank inner wall, the beneficial effect of the utility model is: through the filter plate immersion cleaning of putting in the acid medium in the cleaning water tank, cooperation aeration bubble can help the uniform stirring of liquid, avoid the accumulation of precipitate and impurity in the bottom, keep the consistency of liquid, ensure the uniformity of immersion process, while avoiding the introduction of external chemical agent, significantly reduce the artificial cleaning intensity, have the effect of removing pertinence to the acid solubility dirt, can restore filter plate surface bump structure integrity, improve the cleaning operation quality stability.

The present application relates to the technical field of geological disaster susceptibility evaluation, in particular to a full-automatic disaster susceptibility evaluation method and system based on PU learning; under the condition of lacking clear non-disaster samples, a semi-supervised strategy based on the PU learning idea is adopted to automatically identify pseudo-negative samples from unmarked samples, and the model stability is improved through multiple rounds of adaptive sampling; the adaptive optimization of the buffer threshold is realized. In the susceptibility evaluation based on grid cells, the buffer threshold selection is included in the Bayesian optimization mechanism, the optimal buffer size is automatically determined, the points in the buffer fully contain the disaster range, and too many boundary samples are avoided; in order to make the evaluation result have stronger practicability and accuracy and stability, the comprehensive score (AUC+F1) / 2 is calculated by using 5-fold cross-validation, and the cross-validation weighted score = comprehensive score mean-0.2x comprehensive score standard deviation is used as the optimization target of the full-automatic system to find the best parameters of the model.

The application discloses an iterative bias correction method considering non-uniformity of a satellite instrument probe element, which comprises bias correction amplitude, construction of a cost function and initialization, construction of a bias operator, clearing of the probe element bias, updating of an atmospheric quality bias correction BC coefficient according to an observation background deviation O-B, calculation of an observation background deviation O-B residual as the probe element bias by using the updated atmospheric quality bias correction BC coefficient, calculation of the next round of observation background deviation O-B according to the probe element bias of the last round, repetition of the probe element bias calculation step, multiple iterations until the atmospheric quality bias correction BC coefficient is stable, and output of the final atmospheric quality bias correction BC coefficient and the probe element bias for bias correction on observation data. The method makes the air mass bias correction coefficient and the probe element bias tend to be stable, improves the normality of the deviation between the initial guess observation and the simulation result, and makes the peak value and the average value closer to zero, and can be used for solving the probe element non-uniformity problem of the satellite instrument and the infrared hyperspectral probe.

This invention provides a method for preparing low-arsenic anhydrous hydrogen fluoride, relating to the field of hydrogen fluoride preparation technology. The preparation method includes the following steps: (1) crude hydrogen fluoride from a storage tank is passed through a primary distillation column to obtain anhydrous hydrogen fluoride. The anhydrous hydrogen fluoride is then introduced into a pretreatment tank, and potassium permanganate solution is added for stirring and reaction to obtain a mixture; (2) the mixture is sequentially passed into a secondary distillation column and a tertiary distillation column for distillation to obtain low-arsenic anhydrous hydrogen fluoride. This invention changes the non-acid-discharge method of the primary distillation column to an acid-discharge method, and sets a pretreatment process between the original primary and secondary distillations to effectively utilize potassium permanganate solution for arsenic removal. Then, the arsenic compounds in the product are oxidized and carried away through the distillation column, thereby effectively purifying the product without generating new hazardous waste. This method can increase the continuous production capability of existing hydrogen fluoride production systems without major modifications.

This invention discloses a weak force sensor based on a teardrop-shaped micro / nano optical fiber and its fabrication method. The sensor comprises a biconical micro / nano optical fiber, a single-conical optical fiber, a quartz capillary tube, and a PDMS microsphere. The biconical micro / nano optical fiber is symmetrically bent, with the central waist region fiber forming a teardrop-shaped ring. The two ends of the teardrop-shaped micro / nano optical fiber ring are sequentially connected to portions of the waist region fiber, a transition region fiber, and a standard fiber. This invention utilizes the sensitive self-sensing capability of micro / nano optical fibers to achieve integrated signal input and output, greatly simplifying the measurement feedback mechanism of the sensing system and reducing overall cost. Furthermore, it is simple and intuitive to operate, reducing the technical requirements for operators. In terms of sensor fabrication, the main raw materials are standard optical fiber and quartz capillary tube, both of which are extremely low-cost. Therefore, this micro / nano optical fiber sensor exhibits significant cost-effectiveness.

This invention belongs to the field of functional textile materials and provides a cooling and antibacterial polyester fabric and its preparation method. The invention employs a melt-blended spinning design of a thermally conductive antibacterial core-shell masterbatch and a polyester matrix. The masterbatch uses a zinc oxide submicron rod-shaped inorganic core as its core, coated with a silane coupling layer and a quaternized copolyester shell. During fiber drafting, the one-dimensional zinc oxide rods are aligned axially, significantly improving the longitudinal thermal conductivity of the fiber and enhancing the instantaneous cooling sensation upon contact. Simultaneously, the quaternized copolyester shell exhibits good compatibility with the polyester matrix, constructing a dense, wash-resistant, and antibacterial network. This achieves synergistic optimization of high-strength, fine-denier spinnability with high-filler thermal conductivity, durable antibacterial properties after 50 machine washes with a soft and comfortable feel, and high functionalization efficiency with low migration safety. It resolves the technical contradictions in existing polyester fabrics regarding thermal conductivity and cooling sensation versus antibacterial durability, functionality versus safety, and processability versus comfort, and has broad application value in areas such as intimate apparel and bedding.

The invention relates to the technical field of optical surface shape detection, in particular to an optical surface shape full-band error analysis method based on a frequency domain attention mechanism, and the method comprises the steps: obtaining a surface shape detection result data set and a full-band error data set; based on spatial distribution of different frequency band information in a frequency domain, constructing a frequency domain attention mechanism, and obtaining and constructing a low-frequency error extraction neural network, an intermediate-frequency error extraction neural network and a high-frequency error extraction neural network with the frequency domain attention mechanism; respectively training the three error extraction neural networks by using the surface shape detection result data set and the full-band error data set to obtain three corresponding error extraction neural models; and respectively inputting the surface shape detection result of the optical element to be detected into the three error extraction neural models, and respectively extracting a low-frequency error, an intermediate-frequency error and a high-frequency error. The method provided by the invention has relatively high universality, does not introduce human subjective errors, and is high in analysis precision.

The embodiment of the utility model provides a diaphragm, an electrode assembly, a battery and electric equipment. The diaphragm comprises a structural layer, the structural layer comprises a base membrane and a solid electrolyte layer, and the solid electrolyte layer is arranged on at least one side of the base membrane. The number of the bonding layers is two, the two bonding layers are arranged on the two sides of the structural layer respectively, each bonding layer comprises a plurality of cold-pressing micelles, and the cold-pressing micelles are distributed in a dot matrix mode. The arrangement of the solid electrolyte layer and the cold-pressed micelles in dot matrix distribution eliminates the impedance influence of the cold-pressed glue on the diaphragm, so that the direct-current internal resistance of the battery adopting the diaphragm is reduced, and the production and processing cost of the battery adopting the diaphragm is reduced at the same time.

This invention provides a recombinant human collagen and its purification method. The method involves expressing recombinant human collagen using microorganisms, then heating the supernatant of the lysate or extract at a temperature above 60°C for at least 15 minutes to achieve solid-liquid separation. Finally, column chromatography using a cation exchange column is performed. Compared to commonly used purification methods employing two chromatographic columns, this invention significantly reduces time and economic costs while further improving the purity and activity of the recombinant human collagen. Furthermore, the entire method can be performed under neutral conditions, avoiding protein denaturation or the introduction of new impurities due to acidic solvents.

This invention discloses a polyvinylidene fluoride (PVDF) resin, its preparation method, and its application. The preparation method includes the following steps: (1) preparing PVDF resin emulsion particles by emulsion polymerization of PVDF monomer; (2) adding a reducing agent and a fluorinated solvent to the obtained PVDF resin emulsion particles; (3) adding PVDF monomer, a dispersant, and an oil-soluble initiator to the emulsion obtained in step (2), and then heating to carry out a suspension polymerization reaction; (4) separating the product after the suspension polymerization is completed to obtain the PVDF resin. The PVDF resin of this invention has high flexibility, high product purity, and high adhesion.

This invention discloses carbon nanodots, their preparation method, and their applications, relating to the field of carbon nanomaterials technology. The carbon nanodots are prepared by solvothermal treatment of nicotinamide, urea, and citric acid or its derivatives. The citric acid derivative is selected from citrate, citric acid hydrate, or citrate hydrate. This invention synthesizes carbon nanodots using nicotinamide as a precursor under solvothermal treatment, simultaneously integrating intrinsic bioactivity, efficient photothermal conversion capability, and red fluorescence imaging function. This multifunctional synergistic therapy overcomes the limitations of single-therapy approaches. Furthermore, the carbon nanodots provided by this invention exhibit extremely high biocompatibility.

The invention provides a Tl-series superconducting thin film and a preparation method thereof, and belongs to the field of superconducting thin film materials. The preparation method of the Tl-series superconducting thin film provided by the invention comprises the following steps: mixing nitrate or acetate of metal, ethylenediaminetetraacetic acid, a water-soluble high-molecular polymer and water to obtain precursor sol; the metals are thallium, barium, calcium and copper; the molar ratio of thallium to barium to calcium to copper to ethylenediamine tetraacetic acid is (2-3): 2: 1: 2: (7-8); coating a substrate with the precursor sol to obtain a precursor film; and carrying out heat treatment on the precursor thin film in an oxygen atmosphere under a closed condition to obtain the Tl-series superconducting thin film. The Tl-series superconducting thin film obtained by the preparation method provided by the invention presents a Tl-2212 phase, no impurity phase is generated, and the critical transition temperature can reach 100K and is close to the Tl-2212 theoretical superconducting transition temperature.

The invention relates to the technical field of flue gas treatment, in particular to a flue gas ultra-low emission system and method based on chemical looping combustion, and the flue gas ultra-low emission system comprises an in-furnace in-situ desulfurization unit, a cyclone separator, a nitrogen oxide removal unit, a dust removal unit, an out-furnace desulfurization unit and a recirculation unit which are connected in sequence in the flue gas flowing direction; wherein the nitrogen oxide removal unit is arranged in a flue between the cyclone separator and the dust removal unit; and part of recycled flue gas treated by the dust removal unit and / or the recycling unit is at least used for diluting or atomizing a denitration reducing agent in the nitrogen oxide removal unit, and / or returns to a chemical looping coal feeding system. According to the invention, through creative connection relations and medium circulation paths among the units, the beneficial effects of ensuring carbon capture advantages, efficiently purifying special pollutants, realizing internal circulation integration of the system, having good economy and the like are generated.

The invention provides a clay type lithium ore external field enhanced resource comprehensive utilization method, and relates to the field of hydrometallurgy. The method comprises the following steps: uniformly mixing clay type lithium ore with concentrated sulfuric acid, and carrying out low-temperature curing to obtain clinker; mixing the clinker with water, and then carrying out leaching reaction to obtain a lithium-rich aluminum leaching solution; carrying out evaporative crystallization on the lithium-rich aluminum leachate to obtain a mixed crystal of lithium sulfate and aluminum sulfate; performing high-temperature pyrolysis reaction on the mixed crystal to obtain an oxide; carrying out high-energy grinding and leaching on the oxide, and filtering to obtain a lithium-containing solution and crude aluminum oxide; and carrying out post-treatment on the lithium-containing solution to obtain the battery-grade lithium carbonate. According to the method, the technological process of the clay type lithium ore is optimized, synchronous leaching of valuable elements lithium and aluminum and efficient separation of the lithium element and the aluminum element are achieved, the problem that the cost is high when lithium is independently extracted is solved, cooperative utilization of clay type lithium ore resources is achieved, and the cost is reduced.

The invention discloses an output method based on 32-bit single-chip microcomputer firmware upgrade memory anti-overflow protection, and relates to the field of single-chip microcomputer memory anti-overflow protection, and the method specifically comprises the following operation steps: S1, environment variable configuration and management; s2, performing core execution of the Python automatic script; s3, performing anti-overflow protection on the memory; and S4, cleaning redundant files and environment variables. According to the output method based on the 32-bit single-chip microcomputer firmware upgrade memory anti-overflow protection, the file path is defined as the environment variable and stored in the independent configuration file in a centralized mode, complete separation of the path and script logic is achieved, the non-transplantable problem caused by a hard coding path is avoided, meanwhile, the adaptation cost in different environments is reduced, and the adaptation efficiency is improved. Operators do not need to modify script codes and only need to adjust configuration files to complete deployment.

The utility model discloses a garbage hydrogen production and carbon sequestration system comprising a plasma cracking furnace. Comprising a cracking furnace and provides high-temperature energy by using a plasma torch system so as to deeply crack the pyrolysis gas; the purification module is used for separating carbon dust and purifying hydrogen until the hydrogen is high in purity; the boiler module is used for recovering waste heat of the system; and the electrical control module is used for integral control. According to the cracking furnace, through the technical path of combining pyrolysis and plasma high-temperature cracking, waste garbage can be efficiently converted into hydrogen with the purity reaching 99.999%, meanwhile, carbon elements in raw materials are mainly captured in the form of solid carbon dust instead of generating carbon dioxide, and therefore greenhouse gas emission is remarkably reduced, the gas purification process is simplified, and the energy consumption is reduced. And the energy utilization efficiency and the resource value of wastes are improved.