3142 results about "Separation technology" patented technology

The invention discloses a multi-NDP (Near-Data Processing) system read-write acceleration method based on a key value separation technology, and the method comprises the steps: when data is written, splitting a data key value pair written into a batch processing region of a multi-NDP system, determining target equipment, then carrying out key processing and value processing, carrying out key storage on keys, and carrying out data storage on the target equipment; a value corresponding to the key is added to a value log file of the target equipment; during data query, hash operation is carried out on a query key, target device position information of a corresponding value is obtained, then the master-slave multi-level hot cache is queried, and query retrieval of the corresponding value is carried out according to the obtained value position index. According to the method, the key value separation technology is introduced into the multi-NDP system, when the Compaction is executed, the execution time of the Compaction is shortened, the influence of the Compaction on the writing operation of the user is reduced, and the writing performance is greatly improved.

Provided by the present application are a device and method for treating gas-bearing oilfield produced water on the basis of vertical shallow air flotation. The treatment device provided by the present application comprises a pressure stabilizing buffer tank, a dosing system, a primary tubular dissolved air releaser, a high-pressure vertical cyclone floating device, a secondary tubular dissolved air releaser, a low-pressure vertical shallow air flotation device, a slop oil tank, and a sludge tank. In the present application, tubular dissolved microbubble generation technology, air flotation separation technology, cyclone separation technology, shallow sedimentation strengthening separation technology and the like are organically combined, a large amount of dissolved air resources contained in produced water is effectively utilized, high-quality microbubble sources are provided for the high-pressure vertical cyclone flotation device and the low-pressure vertical shallow air flotation device by means of a pressure step release mode, efficient treatment of gas-bearing oilfield produced water is implemented, the treatment process of the gas-bearing oilfield produced water is greatly simplified, and treatment costs are reduced.

The invention discloses a method for extracting lithium from a salt lake and an extraction device. The method for extracting lithium from the salt lake provided by the invention comprises the following steps: salt lake brine is subjected to aluminum adsorbent adsorption, ultrafiltration impurity removal, multi-stage nanofiltration magnesium and boron removal, reverse osmosis concentration, ultrafiltration softening deep magnesium removal, resin magnesium and boron removal, MVR evaporation and other technological processes, and a battery-grade lithium carbonate product is obtained. According to the method, the membrane separation technology serves as a core, resin and an evaporation system serve as auxiliary materials, deep separation of magnesium and lithium in the salt lake brine is achieved, the boron removal rate and the lithium recovery rate are high, meanwhile, recycling of water resources is guaranteed, and the whole process has the advantages of being controllable, high in automation degree, low in production cost, small in pollution, high in water recovery rate and suitable for industrial production. The method can be applied to large-scale production of salt lake lithium extraction.

The invention relates to the technical field of waste tire recovery, in particular to a steel wire separation device for waste tire recovery. Comprising a chassis; the number of the rotating shafts is two, and the rotating shafts are rotationally connected to the bottom frame; the number of the separating rollers is the same as that of the rotating shafts, and the separating rollers are arranged on the adjacent rotating shafts respectively; the supporting rod is fixedly connected to the bottom frame; the supporting cylinder is fixedly connected to the supporting rod; the auger rod is rotationally connected between the bottom frame and the supporting cylinder; and the cutting mechanism is arranged on the upper side of the bottom frame and used for cutting off the steel wire stripped from the tire opening ring. By means of the separation roller, the movement directions of the tire opening ring in the rubber and steel wire separation (the tire opening ring outer layer rubber crushing process and the steel wire discharging process) process are consistent, and therefore the situation that in the existing separation technology, a single-side feeding and discharging mode is adopted, and consequently the efficiency is low when steel wires in the tire opening ring are separated is avoided.

The invention provides an automatic early warning method for sudden weather in a target area, which belongs to the technical field of weather early warning, and comprises the following steps of: establishing a primary dense matrix by adopting adaptive filtering processing and a frequency domain signal separation technology, and generating a secondary dense matrix by applying a marine meteorological recognition model of a spiral progressive network structure; a dynamic statistical equation is used to calculate the physical coupling relationship of each parameter to establish a multi-scale weather process balance matrix, a maximum flow and minimum cut algorithm is used to optimize a weather system coupling relationship network to calculate a coupling degree matrix, and a dynamic threshold adjustment mechanism is established according to coupling strength parameters to adjust the early warning detection frequency. And based on a comparison result of the coupling degree moment order maximum characteristic value and a preset risk threshold value, establishing a grading early warning system and outputting a corresponding early warning signal to control an offshore oil and gas platform emergency response system. The technical problem that a multi-time scale weather process coupling relationship cannot be effectively processed is solved.

The invention discloses a multi-modal data fusion agricultural crop intelligent monitoring system and method, and aims to realize accurate monitoring of crop growth and soil health through comprehensive analysis of image and audio data. The system comprises an image processing module, an audio acquisition module, an audio processing module and an early warning module. The image processing module acquires crop images in real time and analyzes the growth stage of crops so as to determine the active depth range of the root system. The audio acquisition module acquires audio signals in soil, and the audio processing module performs preprocessing, screening and feature extraction on the signals through an audio separation technology so as to obtain target audio information related to root activity. And further calculating an evaluation parameter based on a spectrum parameter obtained by audio analysis. And the early warning module generates corresponding early warning information and coping strategies according to whether the state parameters are abnormal or not. According to the invention, the accuracy and real-time performance of crop and soil health monitoring are improved, and more accurate decision support can be provided for agricultural management.

The invention relates to the technical field of analysis of physical and chemical properties of soil, in particular to a dry farming soil fertility rapid detection and fertility improvement method, which comprises the following steps: sorting a colloidal phase and a dissolved phase of a humic acid complex based on density difference and dielectric property difference through a gradient centrifugation and dielectrophoresis enriched physical field synergistic separation technology; a two-channel detection time sequence is optimized by adopting a genetic algorithm, a non-overlapping time sequence signal flow is generated by taking a signal interference suppression ratio as a fitness function, and time domain cross interference is suppressed. A programmable resistance-capacitance compensation model is constructed, parallel capacitor array parameters are dynamically adjusted to correct electrochemical phase angle offset, and a three-dimensional fertility distribution curved surface and a residual map are generated in combination with a Kriging interpolation model. On the basis of residual spectrum spatial distribution characteristics, a cross-linked slow-release system is deployed to improve the organic matter binding capacity of a humic acid deficiency area, a mesoporous zeolite-based passivator is applied to regulate and control an ion migration path, a closed-loop feedback mechanism is formed through dynamic phase response monitoring, and accurate detection and directional remediation of soil fertility are achieved.

The invention belongs to the technical field of asphalt recovery and separation, and particularly relates to asphalt reclaimed material multi-stage separation equipment and a separation method.The asphalt reclaimed material multi-stage separation equipment comprises a machine body, a feeding port is formed in the upper surface of the machine body, a crushing roller is rotationally arranged in the feeding port, and a first discharging port is formed in one side of the machine body; a first sieve plate is fixedly connected to the position, corresponding to the first discharging opening, in the machine body; a multi-stage screening assembly is arranged in the machine body and comprises a second screening plate, a second discharging opening is formed in the position, corresponding to the second screening plate, of the machine body, a third screening plate is arranged below the second screening plate, and the third screening plate is fixedly connected into the machine body. Large asphalt and stones often fall down together with a lot of small asphalt stones, so that the problem that the small asphalt blocks do not pass through sieve pores is solved.

The invention discloses a method for preparing a polymer anti-pollution membrane, which is characterized in that a'fluorine-containing polymer / styrene-maleic anhydride 'porous membrane is prepared by taking a styrene-maleic anhydride copolymer and a fluorine-containing polymer as base materials and adopting a thermally induced phase separation technology. And loading chitosan on the surface of the porous membrane by utilizing a chemical reaction between anhydride on the surface of the membrane and a small part of amino groups in a chitosan chain. The chitosan molecular chain with pH responsiveness not only improves the hydrophilicity of the membrane and slows down the deposition of inorganic scales on the surface of the membrane, but also has the conformation subjected to'curl-stretch 'reversible transformation (similar to'curl-stretch' motion of earthworms in soil so as to soften the soil) in the'acid washing-alkali washing 'cleaning process of the membrane; hardened inorganic scale deposited on the surface of the membrane becomes loose, the binding force between the inorganic scale and the surface of the membrane becomes weak, and the inorganic scale can be effectively removed through surface water cleaning in the follow-up process. The prepared cleaning agent has the advantages of being high in pollution resistance, good in inorganic dirt removal effect after cleaning and the like.

The invention relates to the technical field of CO2 capture and separation, and particularly discloses an anhydrous absorbent with a self-extraction function as well as application and a recovery method. The anhydrous absorbent is synergistically composed of a mixed amine absorption enhancer with specific composition and a hydrophobic organic solvent, wherein the mixed amine absorption enhancer comprises primary amine, secondary amine and tertiary amine. The mixed amine absorption accelerant combines the advantages of high reaction activity of primary amine, low regeneration heat of secondary amine and high absorption capacity and strong hydrophobicity of tertiary amine, so that the anhydrous absorbent shows excellent self-extraction capacity in the adsorption and desorption processes of acid gas, particularly, the anhydrous absorbent after absorbing the acid gas forms a less-water CO2 rich phase, and the CO2 rich phase has excellent self-extraction capacity. And due to the characteristic of less water, sensible heat and latent heat of vaporization required by a rich phase in a CO2 desorption stage are remarkably reduced, so that the problem that the energy consumption is too high in the regeneration process of the existing water-based absorbent is effectively solved.

The invention belongs to the technical field of deep processing of agricultural products, and provides royal jelly protein zymolyte with melanin inhibition activity and preparation and application of the royal jelly protein zymolyte. Performing enzymolysis on the soluble royal jelly protein solution with pepsin to obtain enzymatic hydrolysate; and carrying out ultrafiltration separation on the enzymatic hydrolysate to obtain a polypeptide solution with the molecular weight of less than 3KDa, namely royal jelly protein hydrolysate. The royal jelly is used as a raw material, the royal jelly protein hydrolysate with low molecular weight is prepared by extracting royal jelly protein and utilizing a protease enzymolysis technology and an ultrafiltration separation technology, and the royal jelly protein hydrolysate has good melanogenesis inhibition activity and can reduce generation of mouse melanoma cells and zebra fish melanin. The inhibitor is derived from natural food royal jelly, is green and safe, is controllable in conditions in the preparation process, is convenient to extract, does not need artificial synthesis, and is expected to be applied to food, medicines or cosmetics with a whitening effect.

The invention discloses a method for preparing, enriching and separating various egg yolk bioactive peptides through enzymolysis of defatted egg yolk powder and application of the egg yolk bioactive peptides, and belongs to the technical field of egg product processing and bioactive peptides. Egg yolk protein hydrolysate is prepared by adopting a three-step enzymolysis process, adsorption and gradient elution are performed on the egg yolk protein hydrolysate by adopting a macroporous resin chromatographic column, four components including water-1, water-2, 20% ethanol and 80% ethanol are obtained, the water-1 component is common egg yolk peptide, the water-1 component is enriched with osteogenic active peptide, the water-2 component is enriched with ethanol, and the 80% ethanol is enriched with ethanol. The 20% ethanol component enriches antioxidant peptide, and the 80% ethanol component enriches ACE inhibitory peptide. The functional activity of each bioactive peptide component is very strong, and the bioactive peptide component can be used as a high-end functional ingredient. According to the method disclosed by the invention, comprehensive utilization of the degreased yolk powder is realized, enrichment and separation of three active peptides are realized by using one raw material through a step-by-step enzymolysis-directional separation technology, the yield of the active peptides is greatly improved, and the economic benefits of enterprises are improved.

An automatic metal separator of a vibrating screen relates to the technical field of metal separation and comprises a supporting table, an upper conveying belt and a lower conveying belt are rotatably arranged above the supporting table, the upper conveying belt is located above the lower conveying belt, the upper conveying belt and the lower conveying belt are vertically arranged in parallel, and a material collecting channel is fixedly arranged below the discharging end of the upper conveying belt. One end of the material collecting channel is arranged in an inclined mode towards the lower conveying belt and extends to the position close to the discharging end of the lower conveying belt, a feeding assembly is arranged on the side of the supporting table, and two discharging ports of the feeding assembly are located above the feeding end of the upper conveying belt and the feeding end of the lower conveying belt correspondingly. Metal separation assemblies are arranged above the upper conveying belt and between the upper conveying belt and the lower conveying belt; the feeding assembly comprises a vibrating box which is arranged in a vibrating mode, and a sieve plate and a material receiving plate which are arranged up and down are fixedly arranged in the vibrating box. The metal separator solves the problem that an existing metal separator is poor in screening effect when used for screening metal in waste plastics.

The present invention belongs to the technical field of gas-liquid separation, and specifically relates to a gas-liquid separator, including a separation box, wherein a partition plate 1 and a partition plate 2 are installed in the separation box, and the interior of the separation box is divided into a separation chamber 1, a separation chamber 2 and a separation chamber 3. An arc guide box 1 is connected above the separation chamber 1 and the separation chamber 2, and a conical drainage box is connected below the separation chamber 1. A gas-liquid feeding device and a drainage device are connected below the conical drainage box. An arc guide box 2 is installed and connected below the separation chamber 2 and the separation chamber 3, and an exhaust device is installed above the separation chamber 3. A primary separation device, a secondary separation device and a tertiary separation device are respectively installed in the separation chamber 1, the separation chamber 2 and the separation chamber 3, and the bottom of the arc guide box 2 is connected to the drainage device. Compared with the prior art, the present invention realizes multi-stage separation of a gas-liquid mixture and improves the gas-liquid separation efficiency through the coordinated work of the primary separation device, the secondary separation device and the tertiary separation device.

The invention relates to a preparation method and application of an electrochemical-colorimetric dual-mode sensor based on nanoflowers and a bifunctional NiFe-PBA nano enzyme. The NiFe-PBA loaded gold-platinum bimetallic nanoparticles have excellent oxidation-reduction activity and peroxidase activity, and are used as a bifunctional probe to construct an electrochemical colorimetric dual-mode sensor. More signal probes are introduced into the branched DNA structure to participate in the reaction, the specificity of the sensor is enhanced through specific recognition of the aptamer on OTA, and finally, an electrochemical and colorimetric dual-mode channel is ingeniously constructed by utilizing a magnetic separation technology, so that environmental interference is effectively reduced, and false positive signals are avoided. NiFe-PBA loaded gold-platinum bimetallic nanoparticles participate in the dual-mode channels, so that the experimental operation is simplified while the signal response caused by the target is realized. The dual-mode sensor constructed by the invention has the characteristics of sensitivity, reliability, rapidness and stability, and is beneficial to popularization and application. And the biosensor has good anti-interference capability and practical application capability, and provides a novel biosensing platform for practical sample analysis.

The invention discloses a BIM (Building Information Modeling)-based large-span post-tensioned bonded prestressed beam construction method. The BIM-based large-span post-tensioned bonded prestressed beam construction method comprises the following steps: collecting a vibration signal of a working rib and a matt rib reference signal of a matt rib; inputting the dummy rib reference signal into an adaptive filtering algorithm to which phase preserving constraint is applied, and performing noise cancellation processing on the working rib vibration signal to generate a purified pressure wave signal; performing multi-scale decomposition on the purified signal, extracting propagation time delay of the direct wave based on coherence analysis among components, and generating a phase-time delay characteristic matrix; and based on pre-configured geometric parameters of the BIM three-dimensional model, a real-time stress distribution field is calculated through inversion according to the phase-time delay characteristic matrix, and the real-time stress distribution field is synchronously updated to the BIM three-dimensional model. According to the method, the phase distortion problem under noise interference is solved through a physical reference channel and phase preserving filtering, the accuracy of time delay extraction is improved through a multi-path separation technology, and high-precision and high-robustness real-time monitoring of the prestress is achieved.

The invention discloses a carbon dioxide hydrogenation methanation-cracking carbon preparation series method, which comprises the following steps: generating CH4 through a reaction of # imgabs0 # imgabs1 #, and realizing the production of a carbon material by adopting the technologies of condensation separation of CH4 and water vapor, CH4 cracking reaction of # imgabs2 #, cyclic utilization of hydrogen and the like. The process is composed of a carbon dioxide hydrogenation methanation reactor and a methane cracking reactor. In the methanation reactor, CO2 and H2 react under a low-temperature condition to generate CH4 and water vapor; cH4 and water vapor are separated by adopting a compressor condensation separation technology, and the separated CH4 is conveyed to a cracking reactor. In the methane cracking reactor, CH4 is cracked at a high temperature to generate H2 and a carbon nanomaterial, and then H2 is returned to the methanation reactor again. The separation of CH4 and water vapor at a relatively low temperature is realized in the tandem carbonization process through a low-temperature condensation technology; through low-temperature CO2 methanation and CH4 catalytic cracking, the content of CO2 is reduced, a high-quality carbon nanomaterial is obtained, and cyclic utilization of CO2 and H2 is realized.

The invention discloses an improved YOLOv10-based molybdenum ore resource automatic detection method and system, and belongs to the technical field of computer vision beneficiation, and the improved YOLOv10-based molybdenum ore resource automatic detection method and system comprise a YOLOv10-based improved model and an X-ray sorting technology. According to the method, a complete automatic detection and separation process is formed by organically combining a YOLOv10-based improved model and an X-ray separation technology, and a formed molybdenum ore resource detection and separation scheme is not limited by physical and chemical properties of molybdenum ore; compared with the traditional manual detection and sorting mode, the molybdenum ore resource sorting method has the advantages of greatly reducing manual intervention and operation time, and remarkably improving the working efficiency of the whole molybdenum ore resource sorting process, and has the remarkable advantages in the aspects of detection accuracy, sorting efficiency, resource utilization rate, adaptability to different working conditions and the like.

The invention discloses an efficient sewage treatment device based on a magnetic separation technology, and relates to the technical field of sewage treatment, and the efficient sewage treatment device comprises a composite mechanism. According to the efficient sewage treatment device based on the magnetic separation technology, through the design of a composite mechanism, sewage enters the composite shell from a feeding pipe, impurities in the sewage are adsorbed through a filter plate, so that the effect of purifying the sewage is achieved, the contact area is increased by forming a plate surface groove and opening the groove, the filter effect is improved, and the service life of parts is prolonged; a first electric push rod controls an annular plate to rub a filter plate up and down in the composite shell, so that the effect of cleaning impurities on the surface is achieved, impurity precipitation is reduced, the rubbed impurities are precipitated towards an output mechanism, subsequent discharge from the output mechanism is facilitated, filtered sewage is discharged from a discharge pipe, and subsequent operation is facilitated.

The invention discloses a method for preparing activated carbon by using waste tire pyrolytic carbon black, which comprises the following steps of: selectively and dynamically screening and removing magnetic impurities, namely dynamically screening a pyrolytic product through an airflow grading device, separating out high-purity carbon black particles with the particle size of less than 10 microns, and removing metal impurities and residual steel wires by using a magnetic separation technology to obtain the activated carbon. And the purity of the carbon black reaches 95% or above. Therefore, the pore structure is optimized through combination of a wet method and high-temperature activation, the pore distribution is further maintained, regulated and controlled through freeze drying and solvent heat treatment, the specific surface area of the finally prepared activated carbon reaches 1500-2000 m < 2 > / g, and the pore volume retention rate reaches 90% or above; the technology not only effectively solves the problems of insufficient carbon black purity, unstable pore structure and high energy consumption in the prior art, but also remarkably improves the adsorption performance and chemical stability, so that the carbon black is widely applied to the fields of water treatment, gas adsorption, catalyst carriers and the like, and has the outstanding advantages of high efficiency, low consumption and environmental protection.

The invention discloses an FP-XFat feature device and a typical rescue scene-oriented three-dimensional reconstruction method and system, and relates to the technical field of three-dimensional reconstruction. The FP-XFat feature device is internally provided with a pre-training model, and the pre-training model comprises an improved PIOU loss function; the implementation mode of the improved PIOU loss function is as follows: 1) constructing a dynamically adjusted weight coefficient, reinforcing geometric constraints when the IoU is low, and weakening the constraints when the IoU is high; 2) introducing a shape difference metric item based on an arc tangent function, converting the aspect ratio into an angle dimension, and eliminating the influence of scale difference on shape judgment; and 3) adopting a gradient separation technology to block back propagation of an IoU gradient to a weight coefficient. The FP-XFat feature device introduces an improved PIOU loss function, and through an adaptive weight mechanism and a shape perception penalty term, the accuracy of feature point positioning can be significantly improved.

The invention belongs to the technical field of dioxane separation, and mainly relates to a separation device for dioxane, the separation device comprises a heating sleeve, an evaporation sleeve, a central shaft and a driving part, the central shaft is provided with a blanking plate, an adjusting plate and a scraper assembly; the circumferential edge of the discharging plate is connected with the evaporation sleeve, a plurality of discharging holes are formed in the position, close to the circumferential edge of the discharging plate, of the discharging plate, and adjusting holes are formed in the adjusting plate. The scraper assembly comprises a central sleeve and a plurality of material scrapers, and a plurality of circumferential tension springs are arranged between the central sleeve and the central shaft; a transmission structure is arranged between the central sleeve and the adjusting plate, the size of an overlapped area of the discharging hole and the adjusting hole can be automatically adjusted according to the size of resistance borne by the material scraping plate, it is guaranteed that the amount of materials entering the evaporation sleeve in unit time is matched with the resistance borne by the material scraping plate, and it is guaranteed that a material film on the inner wall of the evaporation sleeve is evenly distributed; the separation effect of the dioxane is improved.

The invention belongs to the technical field of sewage treatment and membrane separation, and provides an in-situ nondestructive membrane pollution detection system and method based on an ultrasonic transmission signal, and the system comprises an ultrasonic excitation module which is used for generating a sine wave excitation signal which penetrates through a membrane body to excite the ultrasonic transmission signal for pollution detection; the signal processing module is used for continuously collecting and preprocessing ultrasonic transmission signals of the clean membrane body and the membrane bodies with different pollution degrees, extracting ultrasonic transmission signal characteristics under different pollution degrees, and establishing a pollution thickness-signal characteristic mapping model; wherein the ultrasonic transmission signal features comprise a time-frequency domain energy gravity center feature and a frequency attenuation spectrum slope feature; and the pollution detection module is used for judging the pollution stage of the membrane body to be detected based on the pollution thickness-signal feature mapping model, and completing in-situ nondestructive membrane pollution detection. According to the technical scheme, the sludge pollution state in the ceramic membrane and flat membrane filtering process can be monitored in real time, and early warning and pollution dynamic tracking are achieved.

The invention relates to the field of chemical engineering, in particular to an n-hexane separation technology, and more particularly relates to a method and a device for preparing electronic-grade n-hexane. The method for preparing the electron n-hexane comprises the following steps: S1, introducing an adsorbent into an n-hexane raw material to remove moisture in the n-hexane, and then carrying out catalytic hydrogenation reaction to obtain crude n-hexane; and S2, carrying out primary filtration on the material subjected to catalytic hydrogenation, then carrying out light component removal and heavy component removal two-stage rectification to obtain high-purity n-hexane, and carrying out secondary filtration on the high-purity n-hexane to obtain the electronic-grade n-hexane. The device for preparing the electronic-grade n-hexane comprises a raw material tank, an adsorption tower, a catalytic hydrogenation reactor, an intermediate tank, a light component removal tower, a heavy component removal tower and a product tank which are connected in sequence. According to the preparation method and device, high-purity electronic-grade n-hexane meeting the strict requirements of the semiconductor industry can be produced, the process steps are simple, industrial production is easy to achieve, the product quality is stable and reliable, and high economic and social benefits are achieved.

The invention discloses a recycling method of a waste lithium-ion power battery negative electrode material, which comprises the following steps: deconstructing the waste battery negative electrode material through selective plasma electrolysis, separating organic matters and electrolyte to obtain untreated negative electrode powder, and drying the untreated negative electrode powder to obtain the waste lithium-ion power battery negative electrode material. The powder is refined into uniform particles by adopting a supercritical fluid cooling and crushing technology, the physical structure of the powder is kept, metal elements such as lithium, nickel and cobalt are extracted by utilizing a multi-frequency resonance auxiliary ion exchange technology, impurities are removed, further purification is performed by adopting a superconducting magnetic separation technology and a nanoscale aerosol separation technology, and a high-purity metal solution is generated; metal compounds are generated through an intelligent self-adaptive phase change precipitation technology and are reduced into recyclable metal materials through biological catalytic deposition, the whole recovery process is monitored and optimized through a closed-loop circulation intelligent feedback system, the metal recovery rate is maximized, and harmless treatment is ensured.

The invention discloses a supergravity continuous foam separation device and method, and belongs to the technical field of chemical separation. The device comprises n supergravity rotating packed beds and (n + 1) foam columns, when n is equal to 2, the device comprises first and second supergravity rotating packed beds and first, second and third foam columns; a gas inlet of the first supergravity rotating packed bed and a gas inlet of the first foam column are simultaneously connected with a gas conveying pipeline, and a foam outlet of the first foam column is connected with a liquid outlet of the first supergravity rotating packed bed; a gas inlet of the second foam column is connected with a gas outlet of the first rotating packed bed, and a foam outlet of the second foam column is connected with a gas inlet of the second supergravity rotating packed bed; a gas inlet of the third foam column is connected with a gas outlet of the second supergravity rotating packed bed; a liquid inlet of the first rotating packed bed is simultaneously connected with a liquid outlet of the second rotating packed bed and a liquid conveying pipeline. According to the invention, efficient separation of target substances is realized, and the method is suitable for a continuous operation process.

The invention provides a methane recovery and purification system in intelligent cleaning equipment, which relates to the technical field of environmental protection, and is characterized in that methane-containing gas is collected from the cleaning equipment, moisture and small particles in the gas are removed to obtain preliminarily purified gas, and then methane is separated and recovered by using a separation technology to obtain purified gas. And the purified methanol is obtained through multi-stage purification treatment. According to the methane recovery technology, a time sequence of gas components, a time sequence of physical properties and a time sequence of process parameters need to be obtained, and local time sequence coding and causal context time sequence aggregation are carried out, so that a separation technology recommendation result is recommended, and operation parameters are dynamically adjusted. Therefore, subjective experience can be abandoned, gas characteristics and process requirements are monitored in real time and accurately matched, the accuracy and objectivity of separation technology selection are improved, and it is ensured that the separation process is always in the optimal state.

The invention discloses a process for preparing ultra-pure hydrogen by recovering and purifying hydrogen. The process comprises the following steps: nitrogen replacement: carrying out three times of pressurization-decompression circulation on an adsorption tower and a pipeline; pretreatment of raw materials: hydrogen-containing tail gas is treated by a buffer tank, a compressor, a desulfurization tower and a horizontal adsorption tower and then enters a PSA (Pressure Swing Adsorption) system; pSA purification: a 6-2-3 / P process is adopted, two towers in six adsorption towers perform adsorption at the same time, and hydrogen larger than or equal to 99.99% is produced; regeneration of the adsorbent is completed through three-stage pressure equalizing and reducing, clockwise / anticlockwise pressure reducing, product hydrogen flushing and three-stage pressure equalizing and boosting; refining by a membrane separation unit: carrying out membrane separation on PSA hydrogen to produce ultrapure hydrogen of which the purity is greater than or equal to 99.999%, and returning trapped gas to a compressor; and condensate water recovery: carrying out steam stripping and deoxygenization on the process condensate liquid, and then taking the process condensate liquid as boiler feed water. The process integrates PSA and membrane separation technologies, realizes efficient and energy-saving ultrapure hydrogen preparation, and is suitable for the fields of green hydrogen energy storage, electronic industry, high-end chemical industry and the like.

The invention belongs to the technical field of oil-water separation, and discloses an oil-water separation device, which comprises: a pool body, the pool body comprises a water inlet pipe for introducing an oil-water mixture, and an oil outlet pipe and a water outlet pipe for discharging separated oil and water, and the water outlet pipe is arranged on a wall surface opposite to a wall surface where the water inlet pipe is located; each oil-water separation plate is provided with a wave-shaped bent surface, the wave shape extends in a bent mode in the direction from the wall face where the water inlet pipe is located to the wall face where the water outlet pipe is located, and oil passing holes are formed in the protruding positions of the wave shapes. Through the wave-shaped oil-water separation plates, oil and water can be rapidly separated, and meanwhile grease transfer between all layers is achieved.

The utility model discloses a vehicle-mounted dehumidification protection air temperature type carbon dioxide gasification pry. The device comprises a protection box body and a gasifier located in the protection box body, the gasifier is provided with a gasification tube bundle, the front end of the gasification tube bundle is connected with the liquid separation side of a high-pressure common rail pipeline, and the rear end of the gasification tube bundle is connected with a carbon dioxide outlet pipeline through a collection box; the top of the protection box body is provided with a fan, the side face is provided with a shutter, and the bottom is provided with a dehumidification protection net and a folding protection bottom plate. And the fan adopts a blowing type or induced air type working mode, and adopts different air inlet modes according to different air humidity conditions, so that the gasification efficiency and stability are improved. According to the forced convection heat exchange principle, based on the bottom dehumidification device, the inertia separation technology of gas-liquid speed steering is utilized, two different operation states of the draught fan are adopted, and all-weather efficient, stable and safe high-pressure gasification operation is achieved by matching angle adjustment of the shutters on the two sides and air injection and entrainment to remove the influence of the boundary effect of the wall face.