15results about How to "Process flow is clear" patented technology

A continuous solid-liquid reaction device for gas treatment belongs to the technical field of flue gas desulfurization and manganese resource recovery equipment and comprises more than three reaction kettles which are connected in series through gas guide pipelines, each reaction kettle is provided with a gas inlet pipe joint, a feeding pipe joint, a gas outlet pipe joint and a discharging pipe joint, and a gas distribution device communicated with the gas inlet pipe joint is arranged in each reaction kettle. A stirring device is also arranged; the gas distribution device comprises more than two layers of gas distribution pipes which are communicated through a communication pipeline; a plurality of gas distribution holes are formed in the side walls of the gas distribution pipes; the stirring device comprises more than two layers of stirring paddles, and the stirring paddles are arranged above each layer of gas distribution pipe. The core design of'mixing gas with liquid without mixing 'is adopted, the gas distribution device is combined with stirring, so that gas is uniformly released in a small bubble form, the retention time is prolonged, and multi-stage full utilization of the gas is realized in cooperation with the gas series design. And multi-layer graded gas distribution is matched with layered stirring, so that gas-liquid-solid three-phase contact is sufficient, the reaction is stable, and deposition and short circuit are avoided.

This invention discloses a machining process for precision screws, belonging to the field of mechanical manufacturing technology. It includes the following steps: S1, rough machining and forming: treating the surface of the bar stock and machining functional slot structures, followed by pre-deburring; S2, structural strengthening: heat-treating the workpiece for strengthening; S3, precision finishing: correcting the form and position tolerances of the heat-treated workpiece and precision grinding each surface; S4, quality assurance delivery: completing inspection, cleaning, and packaging. This process flow is clear, employing a logical arrangement of "forming first, then strengthening, and then fine-tuning," resulting in a workpiece with not only a high-hardness surface but also improved coaxiality of its stepped axis and thread trajectory accuracy. This significantly enhances the screw's operational stability at high speeds. Furthermore, through staged quality control and precision correction, it improves the first-pass yield of the workpiece and reduces the risk of scrap due to heat treatment deformation, possessing extremely high industrial application value.

This invention discloses a method for preparing and applying environmentally functional materials rich in persistent free radicals. The preparation method includes: mechanically crushing and sieving agricultural waste, washing it with deionized water, and drying it to constant weight; mixing the obtained agricultural waste powder with alkali at a specific mass ratio, adding deionized water, stirring uniformly at room temperature to promote a complete reaction, and then transferring the mixture to a crucible for drying; and pyrolyzing the precursor in a tube furnace under a nitrogen atmosphere to finally obtain biochar material with a high content of persistent free radicals. This invention utilizes a three-step method of "raw material pretreatment - alkali modification - controlled-temperature pyrolysis" to efficiently transform widely available and low-cost agricultural waste into structurally stable and high-performance environmentally functional materials. The process is simple, low-cost, and environmentally friendly, showing good practicality and promising prospects for widespread application.

The invention provides a construction method of a fair-faced ultra-high-performance precast concrete wall. The construction method specifically comprises the following steps that a square concrete pouring mold with an upward opening is formed by one face mold plate and four side mold plates of a pouring mold of the prefabricated concrete wall, and a reinforcement cage is placed to pour UHPC concrete till the thickness of the UHPC concrete reaches 20%-80% of the design thickness of the prefabricated concrete wall; after pouring is completed, curing forming is conducted, the four side formworks are disassembled, the other side formwork and the four side formworks are reassembled to form a new upper opening type mold, UHPC concrete of the same formula is poured till the thickness of the UHPC concrete is 80%-20% of the design thickness of the prefabricated concrete wall, the formed first half concrete wall and the bottom mold are turned by 180 degrees, and the bottom mold is turned by 180 degrees; and the exposed reinforcement cage is vertically and downwards inserted into the new concrete pouring mold and is integrally formed and maintained with the newly poured concrete, and finally supplementary pouring is conducted on the center joint. By means of the innovative technology combining multi-time pouring and overturning, the problems of internal bubbles, surface defects and steel bar positioning of the UHPC wall are effectively solved.

This invention provides a CMA environmentally friendly de-icing agent prepared from magnesite tailings and waste acetic acid, along with its preparation method and application. Belonging to the field of industrial solid waste treatment and utilization technology, it includes the following raw materials in parts by weight: 50-60 parts magnesite tailings, 40-80 parts waste acetic acid, 5-10 parts glacial acetic acid, 20-50 parts calcium oxide, and 1-5 parts magnesium oxide. By co-utilizing two industrial wastes—difficult-to-treat magnesite tailings and industrial waste acetic acid—a high-performance, low-corrosion CMA de-icing agent is prepared without deep purification. This achieves low-cost resource utilization of industrial waste and produces a competitive, environmentally friendly de-icing agent product, simultaneously solving multiple industrial and environmental problems such as solid waste accumulation, waste acid disposal, and the high cost and pollution of de-icing agents.

This invention discloses a method for preparing Ganoderma lucidum and jujube seed compound freeze-dried flash release tablets by enzymatic hydrolysis and fermentation, which relates to the field of traditional Chinese medicine preparation technology. The method includes the following steps: (1) Raw material pretreatment: Jujube seed is crushed and mixed with citrate buffer to obtain jujube seed slurry; Ganoderma lucidum fruiting body is ultra-finely pulverized and mixed with cut lily petals to obtain mixed raw materials. This invention uses a specific ratio of compound enzymes (cellulase, pectinase, β-glucanase) in an optimized acidic environment for enzymatic hydrolysis, which can efficiently and selectively destroy the plant cell walls of jujube seed, Ganoderma lucidum and lily, and fully release the active ingredients in the cells; the subsequent fermentation of Lactobacillus plantarum can further decompose the substrate and may produce new beneficial metabolites, forming a synergistic biotransformation, which greatly improves the extraction rate of total active ingredients and product value.

This invention relates to the field of forestry ecological restoration technology, specifically disclosing a method for rapid vegetation restoration through afforestation. The method includes site diagnosis and zoning: surveying the soil salinity, pH value, organic matter content, water content, and topographic features of the target area to classify it into severely, moderately, and mildly degraded areas; customized substrate improvement: configuring a polyurethane-plant growth substrate composite and improving the soil using full coverage, strip laying, or hole application methods according to different degraded areas; targeted seedling planting: selecting resilient native tree species to cultivate container seedlings, and determining the planting density and timing according to the type of degraded area; closed-loop intelligent management: establishing a precision irrigation system, regularly spraying microbial fertilizers, and implementing closed management and dynamic monitoring. This invention is applicable to various difficult site types such as saline-alkali land, desertified land, and degraded forest land, and features simple operation, controllable cost, and significant ecological benefits, making it suitable for large-scale application.

The invention discloses a system and a method for recycling valuable metals of a lithium ion battery through cooperation of wet grinding and vacuum pyrolysis. The recycling method comprises the following steps: completely discharging a waste lithium ion battery, disassembling and separating a positive plate and a negative plate, crushing and sieving, and collecting undersize powder; mixing with a grinding medium, and carrying out ball milling by adopting a ball milling tank; the slurry is sieved after being dried, and screen underflow is collected and is electrode black powder; putting the electrode black powder into a vacuum pyrolysis reactor, vacuumizing and then pyrolyzing; and after the pyrolysis is finished, cooling to room temperature under vacuum or inert gas protection to obtain a valuable metal solid product. The method is carried out at a relatively low temperature, metal oxidation can be inhibited, generation of harmful gas is reduced, separation and pyrolysis with higher adaptability to raw materials are realized, and directional recovery is realized.

The invention discloses a low work function transparent conductive cathode and a preparation method thereof, the low work function transparent conductive cathode comprises a transparent substrate, an ultra-thin metal aluminum layer and an indium oxide layer which are stacked, the ultra-thin metal aluminum layer is located above the transparent substrate, the thickness of the ultra-thin metal aluminum layer is 0.5 nm-2 nm, the indium oxide layer is located above the ultra-thin metal aluminum layer, and the thickness of the indium oxide layer is 0.5 nm-2 nm. And the indium oxide layer is a zirconium and gallium doped indium oxide film with the thickness of 200nm-500nm. The invention aims to provide a low-work-function transparent conductive cathode and a preparation method thereof. The cathode structure can effectively reduce the interface contact potential barrier and realize efficient electron injection, and the preparation process is suitable for industrial production.

The invention discloses a composite pickling agent and a method for pickling salted preserved eggs at a constant temperature, and relates to the field of food processing, the composite pickling agent is prepared from the following raw materials in parts by weight: 1.5-2.5 parts of dietary alkali, 18-22 parts of edible salt, 90-110 parts of water and 0.5-5 parts of optional five spices, according to the composite pickling agent and the method for pickling the salted preserved eggs at the constant temperature by using the composite pickling agent, the pickling period of more than 30 days in the traditional process is shortened to 8-15 days through the cooperation of a specific alkali-salt ratio and a constant-temperature condition, so that the production efficiency is greatly improved.

The invention discloses a manufacturing process of a multi-channel cable assembly, and belongs to the technical field of cable assembly manufacturing. According to the method, the internal stress of a material is eliminated by selecting a foamed extruded obliquely-wrapped cable with the transmission rate consistency of 85% + / -1% and combining five times of temperature circulation, and grouping and phase matching are performed according to delta L < = + / -1% and delta phi < = + / -1.5 degrees and 26.5 GHz based on data of a vector network analyzer, so that the yield of batch production is greater than or equal to 92% for the first time. Experiments show that the method reduces the phase difference by 80% and improves the test efficiency by 75% compared with a traditional process, is especially suitable for high-density interconnection systems such as GJB599 III type cluster connectors and micro-rectangular mixed loading assemblies, and promotes the military / civil millimeter wave communication standardization process.

The invention belongs to the technical field of damage repair of geotechnical engineering, and discloses a method for repairing static load damaged loess through an MICP technology, and efficient repair of the static load damaged loess is achieved through the steps of strain culture, cementing liquid preparation, bacterial liquid and cementing liquid application, repair and maintenance and the like. The method comprises the following steps: selecting bacillus pasteurii, carrying out amplification culture to 1.2-1.8, preparing urea and calcium salt into a cementing solution with a concentration of 1.5-3.0 mol / L according to a ratio, firstly applying a bacterial solution, carrying out field planting, then applying the cementing solution, and finally maintaining for 7-28 days under the conditions that the temperature is 25-35 DEG C and the relative humidity is greater than or equal to 85%. Calcium carbonate is induced to deposit in situ through microbial metabolism, damaged cracks are filled, particles are cemented, the compressive strength of the repaired light-medium damaged loess is 8.7%-15.7% higher than that of undisturbed soil, the internal friction angle is increased to 36 degrees, and the disintegration time is prolonged to be 5 times that of untreated soil. The method adapts to the alkalescence characteristic of the loess, is environment-friendly, is simple and convenient to operate, can effectively recover the mechanical property and water stability of the damaged loess, and is suitable for repairing the damage caused by static load in the loess area.

The application discloses a kind of Cu-10Ni-XAl alloy of computational thermodynamics aided design, heat treatment process and application thereof, and relates to the technical field of alloy material.The process is based on copper, nickel, aluminium ternary alloy thermodynamic data, adopts CALPHAD method to draw phase diagram, designs Cu-10Ni-XAl (X=0-6wt%) alloy composition;After 1053K×180min solid solution treatment (cooling rate is greater than or equal to 10℃ / s) and 700-773K×240min aging treatment (heating rate 5-10℃ / min), high-performance alloy is obtained.The alloy strengthening phase is the dispersed distribution of L 12 Structural Ni3Al phase, when Al content is 3wt%, its Vickers hardness is 366HV, tensile strength is 674MPa, yield strength is 444MPa, elongation is 12.7%, corrosion rate is not higher than 0.02mm / a, and it is suitable for multiple fields such as ocean engineering.The application also discloses corresponding alloy, application and design system, solves the problems of traditional process depending on experience and unstable performance, and has precision and economy.

The invention provides a room-temperature magnetic skyrmion, a two-dimensional ferromagnetic Co2Si / Co3Si nanosheet with a high Curie temperature characteristic and a preparation method and application of the two-dimensional ferromagnetic Co2Si / Co3Si nanosheet, and belongs to the technical field of magnetic materials. A cobalt source is placed in a low-temperature area, a silicon source is placed in a high-temperature area, a fluorine crystal mica sheet is placed above the silicon source in the high-temperature area, chemical vapor deposition reaction is carried out in an inert gas environment, and a two-dimensional ferromagnetic Co2Si nanosheet or Co3Si nanosheet with room-temperature magnetic skyrmion and high Curie temperature characteristics is obtained. The two-dimensional ferromagnetic Co2Si nanosheet and the Co3Si nanosheet have stable room-temperature ferromagnetism and relatively high Curie temperature, generation and annihilation of the room-temperature magnetic skyrmion can be realized through regulation and control of an external magnetic field, and the two-dimensional ferromagnetic Co2Si nanosheet and the Co3Si nanosheet have wide application prospects in the fields of spintronics, low-power-consumption information storage and the like; the method provided by the invention has the advantages of few types of raw materials, simple process, good repeatability and low cost, and is beneficial to large-scale production.

The invention discloses an aluminum alloy additive manufacturing strengthening and toughening method combining ultrasonic peening and heat treatment, and belongs to the technical field of metal additive manufacturing aftertreatment. The method sequentially comprises the following steps that firstly, a CMT technology is adopted, 7000 series aluminum alloy serves as a base plate, and aluminum-lithium alloy welding wires serve as filling materials for additive manufacturing; secondly, the surface of the manufactured part is subjected to ultrasonic impact treatment; and then, solution treatment and aging treatment are carried out. According to the method, through organic combination and sequential cooperation of the three processes, the technical problems that due to rapid cooling, residual stress is large, dispersed phase distribution is uneven, and obdurability and toughness are difficult to consider are effectively solved, the comprehensive performance of the material can be remarkably improved, the tensile strength is improved by 282.7% or above, and the service life of the material is prolonged. The elongation after fracture is improved by 543.5% or above, and the aluminum alloy is particularly suitable for preparing high-performance aluminum alloy components in the fields of aerospace and the like.