16results about How to "Eliminate generation" patented technology

The application discloses a method for modifying and adjusting hot-state desulfurization slag of steelmaking, which comprises the following steps: mixing hot-state molten desulfurization slag and casting residue or mixed liquid casting residue in a hot-state adjusting and conditioning pool, and changing the caking and difficult-to-handle characteristics of the molten desulfurization slag into easy-to-handle modified slag for subsequent disposal. The application solves the technical problem of large lumps of slag and iron in existing steel enterprises, and has strong operability and no safety problem.

The invention relates to the technical field of cells, in particular to a solar cell and a preparation method thereof, and the preparation method comprises the following steps: adding a hole transport material and a first perovskite material into a solvent to prepare a mixed solution; coating a substrate with the mixed solution, and performing annealing treatment to obtain a composite hole transport layer; coating the composite hole transport layer with a perovskite precursor solution, and performing annealing treatment to obtain a perovskite layer; the perovskite precursor solution comprises a second perovskite material, and the second perovskite material is the same as the first perovskite material. According to the preparation method of the solar cell provided by the invention, the perovskite seed crystal with the same components as the perovskite layer is pre-buried in the composite hole transport layer, and the perovskite seed crystal is used as a nucleation site to induce the perovskite layer to crystallize from bottom to top, so that the generation of bottom holes is inhibited.

The invention discloses a horizontal continuous casting crystallization cavity low-oxygen copper liquid bubble eliminating method and device, and relates to the technical field of low-oxygen copper liquid continuous casting crystallization, a continuous casting machine shell and a bubble eliminating cavity are included, a continuous casting crystallization mechanism is arranged in the continuous casting machine shell, and a stirring mechanism is arranged in the bubble eliminating cavity. The stirring mechanism comprises a first motor arranged in the bubble eliminating cavity, a sliding groove is formed in the first motor, a sliding block is slidably connected to the interior of the sliding groove, a threaded rod is arranged at the output end of the first motor, a threaded cylinder is in threaded connection to the exterior of the threaded rod, and an air suction cylinder is fixedly connected to the interior of the bubble eliminating cavity. The thorn-shaped stirring fan can stir copper liquid in the bubble eliminating cavity at different heights, so that bubbles in the copper liquid are punctured and eliminated, dead angles are few when the bubbles are eliminated, a vacuum environment is formed in the bubble eliminating cavity, some missing bubbles are eliminated again, and the bubbles can be effectively prevented from being generated again in the copper liquid.

This invention discloses a secure alignment method and system for large language models based on multilingual self-distillation, belonging to the fields of artificial intelligence and natural language processing. The method instantiates a teacher model and a student model from the same large language model. The student model only receives queries in the target low-resource language, while the teacher model additionally receives English queries and thought chain instructions to stimulate secure reasoning capabilities in high-resource languages. A dual-perspective security weighting mechanism is proposed to jointly evaluate teacher confidence and student deviation, adaptively adjusting the token-level penalty weight. It supports both online and offline self-distillation modes, achieving cross-language security capability transfer through weighted KL divergence optimization. This invention requires no response data and achieves superior security performance on multiple large language models and multilingual jailbreaking benchmarks, particularly demonstrating strong generalization ability on low-resource languages ​​not seen in the training set, while maintaining model versatility and eliminating the problem of existing methods relying on high-cost response data generation.

This invention discloses a method and system for hydrogen production using recycled PET waste and wastewater, belonging to the field of hydrogen production technology. The method involves immersing the lower half of a microreactor with a three-dimensional porous structure into an alkaline PET depolymerization solution. The alkaline PET depolymerization solution is made from PET waste, wastewater, and an alkaline catalyst. Utilizing the photothermal conversion capability of the microreactor under illumination, the solution is driven upwards to the high-temperature upper half of the microreactor, where vigorous evaporation occurs, producing water and ethylene glycol. The alkaline catalyst is concentrated, precipitated, and participates in catalysis at the evaporation interface. The mixed steam undergoes a KOH catalytic reforming reaction in the high-temperature zone of the microreactor to produce hydrogen. The water vapor is condensed and recovered, and the alkaline catalyst is directly collected. The alkaline catalyst achieves in-situ regeneration and recycling, and absorbs carbon emissions generated during the reaction, achieving zero pollution and high-purity hydrogen production. This invention achieves green energy hydrogen production and plastic degradation through an integrated design of alkaline degradation, alkaline catalysis, and alkaline recovery.

This application belongs to the field of battery technology and discloses a method for etching the copper seed layer of a copper-grid heterojunction solar cell, an etching solution, and its application. The etching solution consists of dilute sulfuric acid solution, ozone, and water, with the concentration of the dilute sulfuric acid solution being 0.6%-10% and the ozone concentration being 10-30 ppm. The solar cell containing the copper seed layer or the silicon wafer of a heterojunction solar cell containing an ITO film is completely immersed in the etching solution and etched at room temperature to remove the copper seed layer from the surface of the silicon wafer. The etching solution described in this technical solution is used to remove the copper seed layer in copper-grid heterojunction solar cells. It has a simple composition, and the waste liquid after etching is a copper sulfate solution with no harmful byproducts, making it environmentally friendly. The ozone is generated on-site from air or oxygen, and the sulfuric acid concentration is extremely low, reducing the cost of chemical solutions by more than 60% and resulting in extremely low overall operating costs. This system causes very little damage to transparent conductive films such as ITO and SnO2, and the sheet resistance and film thickness change rate can be controlled within 3%, ensuring the performance of the solar cell. Compared with other oxidant etching solutions, it avoids the etching capacity decay defects caused by oxidant decomposition.

This utility model relates to the field of pretreatment filtration components for pure water systems, and discloses an anti-clogging pretreatment filtration component for pure water systems. The component includes a housing, with a top cover fixedly connected to the top outer wall of the housing via a flange. A motor is fixedly connected to the top outer wall of the top cover, and a rotating shaft is fixedly connected to the output end of the motor. An agitator is fixedly connected to the outer wall of the rotating shaft, and a brush and a scraper are fixedly connected to the outer wall of the agitator. In this utility model, by incorporating a brush and a scraper within the component, adhesive substances and fibrous impurities adhering to the surface of the filter screen and the inner wall of the filter housing can be physically scraped and cleaned in real time. Simultaneously, the addition of an ultrasonic transmitter effectively eliminates air bubbles generated during raw water filtration, preventing the formation of an air film that obstructs water flow and accelerating the speed at which water passes through the inner filter housing. This reduces the frequency of downtime for cleaning the filter screen and improves overall filtration efficiency.

The invention relates to a cleaning solution for a copper surface of a ceramic-based printed circuit board and an application method of the cleaning solution, relates to the technical field of cleaning of ceramic-based printed circuit boards, and aims to solve the problem of poor appearance of'white spots' or'white dots' caused by bubble attachment at a grain boundary during traditional micro-etching cleaning of a large-grain copper layer generated by an active metal brazing process. The cleaning solution is prepared by mixing an oil removing agent and a micro-etching agent according to a specific volume ratio; the application method of the mixed cleaning solution comprises the following steps: adding pure water into a clean cleaning tank, adding the oil removal liquid and the micro-etching liquid according to a preset proportion, supplementing the pure water to a working liquid level, circularly heating to a set temperature, and immersing a ceramic-based printed circuit board to be treated into the mixed cleaning solution for treatment; according to the method, oil removal and micro-etching processes which are carried out step by step in a traditional production line are integrated into one step, and aggregation and attachment of micro-etching reaction bubbles on a copper surface grain boundary and holes are effectively inhibited by utilizing the synergistic effect of components in the mixed solution, so that the phenomenon of'white spots' is eliminated from the source.

This invention relates to a method for the electrocatalytic oxidation of anisole to anisole sulfoxide using iron-based complexes, belonging to the fields of homogeneous catalysts and electrocatalytic oxidation technology. The invention utilizes an iron-based complex formed by coordination between a tetraamide macrocyclic ligand (TAML-H4) and metallic iron as a homogeneous molecular catalyst, with water as the sole oxygen source, to construct an electrocatalytic anisole oxidation system. Through the synergistic effect of the catalyst and water, a proton-coupled electron transfer and single-electron oxidation process occurs at the anolyte, resulting in the loss of two electrons and two protons to generate a high-valence iron-oxygen active intermediate [Fe]. Ⅴ (O)(TAML)] – This invention achieves highly efficient and selective oxidation of anisole, generating the high-value-added product benzyl sulfoxide at the anode. It eliminates the need for additional strong oxidants, employs mild reaction conditions, boasts high atom economy, and is environmentally friendly, making it suitable for the green conversion of sulfides in the synthesis of fine chemicals. This provides a feasible pathway for the industrial production of sulfoxide compounds.

The application discloses a method for preparing vanadium pentoxide by using vanadium-titanium magnetite converter slag, and belongs to the field of mineral metallurgy secondary resource recovery and hydrometallurgy technology. The application sequentially removes iron through crushing, screening and magnetic separation, removes silicon through reverse flotation, and pretreats and enriches a vanadium phase, and specifically breaks the wrapping of iron / silicon impurities on the vanadium phase; then, the vanadium phase is subjected to high-temperature and high-pressure oxygen enrichment combined with sulfuric acid-hydrofluoric acid-hydrochloric acid-nitric acid four-element synergistic leaching to directionally destroy spinel lattices and oxidize vanadium to pentavalence, so that the impurities are directionally regulated while the vanadium leaching is strengthened; subsequently, the vanadium is precipitated through an acidic ammonium salt, and high-purity V2O5 is prepared through two-stage calcination. Industrial-grade pilot test results show that the total vanadium recovery rate of the whole process is greater than or equal to 93%, the purity of the final product V2O5 is greater than or equal to 99.3%, the acid consumption is reduced by more than 15% compared with a traditional process, there is no chlorine / sulfur-containing waste gas emission, and the application meets the requirements of national green metallurgy and resource comprehensive utilization industrial policies.

The utility model relates to the technical field of medicine preparation, in particular to an emulsifying kettle for preparing vitamin K1 micro-capsules, which not only accelerates the emulsification of raw materials by utilizing ultrasonic waves, but also destroys the surface tension of bubbles by utilizing the cavitation effect of the ultrasonic waves to promote the breakage of the bubbles, and filters the discharged emulsified materials by utilizing a hydrophobic microporous membrane to improve the quality of the emulsified materials. Bubbles are intercepted and discharged due to surface tension when passing through; comprising an emulsifying kettle; the device further comprises a driving mechanism, a stirring mechanism, a dispersing mechanism and a filtering mechanism, the driving mechanism is installed on the emulsifying kettle and drives the stirring mechanism to rotate, the stirring mechanism is installed on the driving mechanism and stirs raw materials, and the dispersing mechanism is installed on the emulsifying kettle and adds the raw materials for emulsification through ultrasonic waves. The filtering mechanism is mounted on the emulsifying kettle and is used for filtering discharged materials.

The utility model relates to a submarine AGV body shell structure which comprises a front structure located at the front end of an AGV body and a rear structure located at the rear end of the AGV body, the front structure comprises a front cover and a front chassis, and the rear structure comprises a rear cover and a rear chassis; the shell structure further comprises fixing assemblies. The front cover and the rear cover are connected with the front chassis and the rear chassis through the fixing assemblies respectively. The front chassis comprises a first connecting part, the rear chassis comprises a second connecting part, and the first connecting part is matched with the second connecting part to enable the front chassis to be connected with the rear chassis; when the front chassis and the rear chassis are connected, a gap is formed between the front cover and the rear cover. According to the design, the cooperative matching structure among the buckle disassembly, the buckle block and the buckle of the fixing assembly is ingeniously applied, so that the traditional mode that a large number of screws are needed for fixing is replaced, the stability of the overall structure is enhanced, and the assembling process is convenient, fast and efficient.

This utility model discloses a closed-loop treatment system for oil-water-solid three-phase separation, mainly relating to the field of oilfield environmental protection technology. It includes a three-phase separation and sedimentation device, which is fed by an inlet system. The inlet system includes an independently installed external inlet pipe and an internal inlet pipe. The external inlet pipe is connected to a first branch pipe and a connecting pipe via a T-junction. The internal inlet pipe is connected to a second branch pipe and a connecting pipe via a T-junction. The connecting pipe connects the first and second branch pipes. Transfer tanks are respectively installed on the first and second branch pipes, and the wastewater in the transfer tanks is connected to the inlet of the three-phase separation and sedimentation device. The advantages of this utility model are: it replaces drying tanks for timely pre-separation and pre-treatment of wastewater, is environmentally friendly and efficient, reduces operating costs, and improves economic benefits.

The application discloses an electromagnetic shielding protection structure of an optical module, and relates to the technical field of optical communication.The electromagnetic shielding protection structure comprises a supporting mechanism, an external connecting mechanism is fixedly connected to the top surface of the supporting mechanism, and a network cable interface is formed in the left side of the external connecting mechanism.The electromagnetic shielding protection structure solves the problem that the existing protection structure lacks a split protection structure for key components, and when a single module in a PCB needs to be maintained, the whole shell needs to be disassembled, which may cause damage to other components of the circuit board due to accidental touch, and the safety hazard problem is solved.Through the cooperation of the linkage structure of the limiting plug and the top rod assembly, the split protection and targeted maintenance of the single module in the PCB are realized, the whole shell does not need to be disassembled, the safety hazard problem of accidental touch and damage to other components during maintenance is effectively avoided, and the problem of inconvenient maintenance caused by the lack of a split protection structure in the prior art is solved.

The application relates to the technical field of functional coatings, and discloses a non-ignition type bio-based bamboo fiber coating which is composed of inorganic cementing material, modified bamboo fiber, inorganic aggregate, conductive filler, defoaming agent, dispersing agent and water in a certain proportion. The modified bamboo fiber is immersed in a mixed solution of ammonium dihydrogen phosphate and boric acid and is coated with nano silicon dioxide sol, so that the coating has excellent flame-retardant performance; the conductive filler is compounded by nano tin antimony oxide and conductive mica powder; the coating takes natural bamboo fiber as a functional carrier, is green and environment-friendly, has excellent performance in three dimensions of non-ignition, anti-static and flame retardation.