2238 results about "Separation system" patented technology

A separation system for a vacuum cleaner is provided an includes a first cyclone body having a first inlet and a second cyclone body having a second inlet. The second cyclone body is arranged in parallel with the first cyclone body. The separation system further includes a valve assembly movable between a first position in which the valve assembly permits airflow through the first and second inlets, and a second position in which the valve assembly permits airflow through the first inlet and inhibits airflow through the second inlet. The first and second inlets are located in a common plane.

The invention provides a chemical sewage advanced treatment system and method based on multistage membrane separation, and relates to the technical field of chemical sewage treatment.The method comprises the steps that pollution load data under preset membrane flux is collected, and the cascade reflux amount in the current membrane separation process is determined through the pollution load data and a real-time pressure index during membrane separation filtration; according to the separation interference deviation, the steady-state filtering period of the membrane separation filtering grade in the constant flux change is predicted, the steady-state filtering period is synchronously screened, and the full-flow separation limit of the multistage membrane separation unit in different pollution loads is obtained; and generating a separation regulation and control index when the equivalent flux generates peak offset according to the cascade reflux quantity and the full-flow separation limit, and performing starting point triggering on the treatment flow of the multistage membrane separation sewage and dirt. Under the dynamic working condition of operation of the multistage membrane separation system, balance adjustment can be carried out on the advanced treatment process trigger of the chemical sewage, so that the standard-reaching rate of membrane separation chemical sewage advanced treatment is increased.

The invention relates to the technical field of membrane control, and discloses a membrane control method and system based on multi-parameter intelligent perception, and the method comprises the steps: obtaining multi-parameter operation data of a membrane separation system, and calculating a transmembrane pressure difference change value, an inlet and outlet water quality change rate and membrane operation load duration according to the operation data; based on the transmembrane pressure difference change value, the inlet and outlet water quality change rate and the membrane operation load duration, a pollution trend early warning model based on an improved long and short term memory network is constructed and analyzed, and a first prediction result is obtained; and performing dynamic pollution risk score calculation based on the first prediction result to obtain a pollution risk comprehensive assessment value. Linkage analysis of the pollution development trend and the system risk level is achieved, the potential pollution risk level can be recognized in advance, cleaning intervention suggestions or alarm strategies are output in a graded mode, and the initiative and timeliness of cleaning decision making are effectively improved.

The invention provides an intelligent ore pre-selection system and method based on airflow separation, and the method comprises the steps: recognizing the space contour features and surface scattering features of ore particles at the upstream of a free falling region of a raw ore flow, and then generating a trajectory deviation coefficient of the ore particles; predicting a drop point trajectory partition of the ore particles through the trajectory deviation coefficient and the local flow field parameter of the raw ore flow, and generating an airflow intervention instruction according to a decision influence relationship of the trajectory deviation coefficient on the drop point trajectory partition; the airflow intervention instruction is responded, an ore removal airflow area and an ore retention airflow area during ore particle sorting are determined, and ore particles meeting the waste rock characteristics enter the ore removal airflow area; and after the airflow intervention effect, obtaining drop point response signals of the ore removal airflow area and the ore retention airflow area, and updating an airflow intervention instruction during subsequent ore particle separation according to the drop point response signals. According to the technical scheme provided by the invention, the ore particles can be effectively sorted under the collision interference among the ore particles.

The invention relates to the technical field of green manufacturing, in particular to a manufactured cutting fluid recovery treatment method based on an oil-scrap separation system, which comprises the following steps: step 1, dynamic viscosity regulation and control pretreatment; 2, gradient centrifugal separation, wherein the pretreated mixed liquid is subjected to three-stage centrifugal separation; 3, interface adsorption fine treatment is conducted, specifically, the oil liquid obtained after centrifugal separation flows through a layered variable-porosity adsorption tower, and regeneration of an adsorption material is triggered according to the pressure drop change; and step 4, optimizing closed-loop parameters, and dynamically correcting the control parameter thresholds in the steps 1-3 by collecting and processing the associated data of the process parameters and the final oil metal residual quantity. According to the method, through precise matching and dynamic adjustment of multiple steps, the separation effect can be improved to the maximum extent in the green manufacturing and cutting fluid recycling process, waste emission and resource waste are reduced, and the purposes of energy conservation and emission reduction are achieved.

This invention discloses a supercritical carbon dioxide cycle generator set water spray desuperheating system, comprising a supercritical carbon dioxide cycle power generation system and a water spray desuperheating system; the supercritical carbon dioxide cycle power generation system includes a heater, a screen-type superheater, a final-stage superheater, and a turbine; the water spray desuperheating system includes a first desuperheating water injection point, a second desuperheating water injection point, and a liquid-water separation system; the heater outlet is sequentially connected to the turbine inlet via the first desuperheating water injection point, the screen-type superheater, the second desuperheating water injection point, and the final-stage superheater; the turbine outlet is connected to the inlet of the liquid-water separation system; the liquid outlet of the liquid-water separation system is connected to the first and second desuperheating water injection points; and the gas outlet of the liquid-water separation system is connected to the heater inlet. This system can solve various problems caused by carbon dioxide desuperheating.

The invention relates to the technical field of natural gas separation, in particular to a natural gas pipeline oil mist separation system which comprises a gas inlet end, an oil mist separation mechanism, an exhaust end and an oil dirt discharge mechanism, the gas inlet end comprises a natural gas inlet main pipe and two natural gas inlet branch pipes, and the natural gas inlet branch pipes are connected with a filtering device; the two groups of oil mist separation mechanisms are fixedly mounted on the filtering device and are used for separating and removing oil mist in the natural gas; the exhaust end comprises a natural gas outlet main pipe and two natural gas outlet branch pipes; and the oil mist discharging mechanism is connected with the oil mist separating mechanism and is used for recovering and treating the oil mist. The filtering device comprises a filter, and a filtering assembly composed of a filter element support, a coalescence sintering type filter element and a bearing is arranged in the filtering device. The oil mist separation mechanism comprises a high-pressure steam source, a steam conveying pipe, a steam branch pipe and a blade, and oil mist separation is achieved through steam injection. Oil mist in natural gas can be effectively separated, and the filtering efficiency and the natural gas quality are improved.

Metal recovery and separation systems and methods, more particularly electrothermal chlorination (ETC) and electrothermal carbochlorination (ETCC) methods and systems for selective metal extraction, such as extraction of key metals from waste streams. Alternatively, other oxidizing agents, such as fluorine, bromine or iodine, may be used in place of or in combination with chlorine. Further, or other reducing agents, such as a metal (0), such as tin (0), and H2 (H2 included in argon, such as 1% to 5% by volume of H2 in argon, may be used in place of or in combination with carbon. Embodiments of the invention may utilize ETC to selectively recover In from ITO-containing waste, and utilize ETC in combination with ETCC to recover Ta from capacitor waste.

A centrifugal separation system includes a centrifugal separator, a liquid feed mixture conduit, a light phase conduit, a heavy phase conduit, and a flow control system. The flow control system includes a controller, a flow control valve arranged in a light phase conduit, a liquid feed mixture measuring device, and at a light phase measuring device and / or a heavy phase measuring device. The controller is configured to control the flow control valve based on measurements from the liquid feed mixture measuring device and measurements from the light phase measuring device and / or the heavy phase measuring device.

The invention discloses a micro-scale turbine blade boundary layer heat-flow double-field synchronous test method and system. The test method comprises the steps that temperature field initial data and velocity field initial data are acquired; based on the initial data of the temperature field and the initial data of the velocity field, the distribution state of the microparticles in the boundary layer is diagnosed, and according to the diagnosis result, the optimal distribution of the microparticles in the boundary layer is obtained by feeding back and controlling the operation parameters of the reverse cyclone separation system; based on the optimal distribution, an improved PIV algorithm is adopted to calculate a boundary layer velocity field, and the improved PIV algorithm is obtained by introducing multistage grid adaptive encryption, physical constraint conditions and a transition area recognition mechanism into the PIV algorithm; a boundary layer temperature field reconstruction model is established, depth phase coupling is carried out on a temperature field reconstruction result and a boundary layer velocity field, synchronous analysis of heat-flow coupling behaviors in a turbine blade boundary layer is achieved, and finally a boundary layer coupling cloud picture reflecting heat-flow interaction characteristics is obtained.

The invention discloses a while-drilling barrel rock debris and gas logging sample collecting device. The while-drilling barrel rock debris and gas logging sample collecting device comprises a liquid-sand separation system, a rock debris collecting system and a gas logging sample collecting system. The liquid-sand separation system is used for separating while-drilling well drilling fluid into drilling fluid liquid and rock debris and respectively conveying the drilling fluid liquid and the rock debris to the gas logging sample collection system and the rock debris collection system, and rock debris samples are collected through the rock debris collection system; the gas logging sample collection system comprises a quantitative metering mechanism and a degassing mechanism, and the quantitative metering mechanism quantitatively conveys the drilling fluid to the degassing mechanism; the degassing mechanism comprises a heating mechanism and a vacuum stirring degassing mechanism, and the drilling fluid is degassed through the heating mechanism and the vacuum stirring degassing mechanism to obtain the gas logging sample; the problems that an electric degasser cannot conduct quantitative degassing, oil gas in the C6-C8 range in mud cannot be removed, and the timeliness of manual rock debris collection is poor are effectively solved.

The invention provides an easy-to-scale efficient biological magnetic separation system and method and application. The magnetic separation method comprises the following steps: marking a target object in a to-be-detected suspension by adopting magnetic nanoparticles, and putting the marked to-be-detected suspension into a separation container; a modularized magnet array is arranged in the separation container, the modularized magnet array is composed of permanent magnets, and the permanent magnets are assembled into the cuboid modularized magnet array; the surface of the permanent magnet is coated with a polytetrafluoroethylene coating; the modularized magnet array moves in the suspension under the control of a driving magnet arranged outside the separation container to generate a dynamic gradient magnetic field, and a target object is captured by the modularized magnet array under the action of the gradient force of the magnetic field; removing the liquid in the separation container; adding the resuspension into a separation container, and recovering a target object by physical ultrasonic washing; or adding a chemical dissociation solution into the separation container to recover the target object.

The invention belongs to the technical field of alkane processing, and particularly relates to a process for preparing isopentene by dehydrogenation of isopentane, a catalyst and a tert-amyl alcohol preparation process. The process for preparing isopentene by dehydrogenation of isopentane comprises an isopentane dehydrogenation device and an isopentene separation device, in the isopentane dehydrogenation device, a dehydrogenation reactor is a fixed bed adiabatic reactor and is filled with a Pt-Sn-K / alumina type alkane dehydrogenation catalyst, the catalyst has hydromethanation performance under the CO2-containing dehydrogenation reaction condition, and the arrangement and operation of a dehydrogenation reactor group comprise a mode A, a mode B or a mode C; the isopentene separation device comprises a cooling separation system, a pressure swing adsorption separation system and an optional rectification system. The tert-amyl alcohol is further prepared from isoamylene under the conditions of a fixed bed hydration reactor, ethylene glycol monobutyl ether and other solvents, and the tert-amyl alcohol product is obtained through separation. The process is superior to the prior art on the whole, and has certain application prospects.

The invention discloses a passion fruit pulp separation system and method, and belongs to the technical field of agricultural product processing. The system aims to solve the technical problems of incomplete separation of pulp and peel, more pulp residues, low yield, low efficiency and the like in the traditional modes of manual digging, mechanical scraping or hydraulic impact and the like. Comprising a discharging channel through which passion fruits pass one by one; the puncturing and stirring unit is arranged on the side of the discharging channel and comprises a puncturing rod piece, a stirring part arranged on the puncturing rod piece in a sleeving mode, a vibration mechanism for driving the puncturing rod piece to generate high-frequency micro vibration, a rotating mechanism for driving the puncturing rod piece to rotate and a puncturing movement mechanism for driving the whole puncturing rod piece to do linear reciprocating motion. The stirring part is configured to be radially expanded into an expanded structure from a folded state under the action of centrifugal force; and a cutting unit disposed downstream. The system is mainly used for realizing efficient and automatic separation of passion fruit pulp, remarkably improves the pulp yield and the seed integrity rate, and is suitable for deep processing processes such as subsequent pulp freeze-drying.

The invention relates to the technical field of nano magnetic bead preparation, and discloses a magnetic bead continuous separation system and a control method. The system comprises a magnetic bead separation device which is of a hollow pipe structure, the pipe wall of the magnetic bead separation device can be magnetized and demagnetized, one end of the magnetic bead separation device is provided with a first liquid inlet and a second liquid inlet, and the other end of the magnetic bead separation device is provided with a first liquid outlet and a second liquid outlet; the stock solution tank is connected to the first liquid inlet through a first flow channel; the waste liquid tank is connected to the first liquid outlet through a fifth flow channel, and a first magnetic bead sensor is arranged on the fifth flow channel; a liquid inlet of the product tank is connected to the second liquid outlet through a sixth flow channel, and a second magnetic bead sensor is arranged on the sixth flow channel; a liquid inlet of the stirring kettle is connected to the second liquid outlet through a seventh flow channel, and a liquid outlet of the stirring kettle is connected to the first liquid inlet through a second flow channel; a liquid outlet of the washing liquid tank is connected to the first liquid inlet through a third flow channel and is connected to the second liquid inlet through a fourth flow channel. The system has the advantage of meeting the requirements of continuous, automatic and infinite batch separation and purification of the magnetic beads.

The invention discloses a seawater all-component efficient separation system based on intelligent regulation and control, and relates to the technical field of seawater treatment. Full-flow closed-loop control from original seawater sample collection, multi-parameter water quality monitoring, ion concentration detection, component identification and path prediction, confinement nanofiltration and air flotation impurity removal, temperature control degassing and ion threshold separation, high-value ion enrichment and multi-path extraction to real-time feedback regulation is realized; through self-adaptive generation of a separation path and precise adjustment of process parameters, the problems that a traditional seawater resource extraction method is poor in component adaptation capacity, high in energy consumption, poor in target object selectivity and the like are solved, the whole separation system remarkably improves the extraction efficiency and selectivity of trace high-value ions, and the separation efficiency is improved. The operation energy consumption and the human intervention degree are reduced, and the system has the remarkable advantages of modular structure, intelligent operation and wide application scene.

The present disclosure relates to processes for producing hydrocarbon fuels from lignocellulosic biomass. A process may include introducing biomass to a pretreatment system, and a first separation system forming a pentose-rich stream and a pentose-lean stream. The pentose-lean stream may be introduced to a hydrolysis system forming a hydrolysate and the hydrolysate introduced to a second separation system forming a hexose-rich stream and a lignin stream. Additionally, at least one of the pentose-rich stream or the hexose-rich stream may be introduced to a bioreactor containing microorganisms configured to produce hydrocarbon fuels. Additionally, the present disclosure also relates to systems for the production of hydrocarbon fuels. A system may include a pretreatment system, a first separation system, a hydrolysis system, a second separation system, and one or more bioreactors. Alternatively a system may include a pretreatment system, a hydrolysis system, a sugar separation system, and one or more bioreactors.

The invention discloses a metal-doped modified zeolite molecular sieve adsorbent as well as a preparation method and application thereof. The metal-doped modified zeolite molecular sieve adsorbent comprises a carrier and an active metal component loaded on the carrier, the carrier is a mordenite molecular sieve; the active metal components comprise at least two of Ca, Mg, Ti, Fe, Ni, Co, Cu, Zn, Na and Ag; in the adsorbent, the loading capacity of the active metal component is 0.1%-15%. The adsorbent provided by the invention has good separation performance on CH4 / CO2, CH4 / N2, CO2 / N2 and CH4 / CO2 / N2 mixed gas separation systems, has the advantages of simple synthesis method, strong hydrothermal stability, high selectivity and the like, and can meet the requirements of CH4 purification in unconventional natural gas such as landfill gas, sewage treatment methane gas, agricultural and breeding biogas, coal bed gas, shale gas and shallow biogas, and the like. And the requirements of high-concentration natural gas denitrification, CO2 capture and other scenes can be met.

The invention relates to the technical field of lead-zinc ore beneficiation, in particular to a lead-zinc ore dense medium grading selection-flotation combined separation system and a separation process, and the system comprises a dense medium separation system and a flotation system. The dense medium separation system comprises a crushing and screening unit, a dense medium coarse fraction separation unit, a dense medium fine fraction separation unit and a fine ore water treatment unit, an outlet of the crushing and screening unit is divided into a coarse fraction outlet, a fine fraction outlet and a fine ore outlet, the coarse fraction outlet is connected with the dense medium coarse fraction separation unit, and the fine fraction outlet is connected with the fine ore water treatment unit; the fine fraction outlet is connected with the dense medium fine fraction separation system, the fine ore outlet is connected with the fine ore water treatment unit, and a coarse fraction gravity concentration concentrate outlet of the dense medium coarse fraction separation unit, a fine fraction gravity concentration concentrate outlet of the dense medium fine fraction separation unit and a concentrated fine ore outlet of the fine ore water treatment unit are connected with the flotation system. The method has the advantages of high economic benefit, low production cost, energy conservation, environment friendliness and the like, and the lead-zinc ore dressing efficiency and the metal recovery rate are effectively improved.

An automatic pepper seedling transplanter comprises a frame body, a pepper seedling clamping system, a pepper seedling tray distributing system, a pepper seedling feeding system, a walking system, a soil covering mechanism, a seedling raising tray and a main control board, and the pepper seedling clamping system, the pepper seedling tray distributing system, the pepper seedling feeding system and the walking system are all connected with the main control board. The frame body comprises an upper frame, a lower frame, an upper layer plate, a middle layer plate, a left side plate and a right side plate, the pepper seedling clamping system is installed on the upper layer plate, and the pepper seedling tray dividing system is installed on the middle layer plate and located in the upper frame; the pepper seedling feeding system is mounted on the inner sides of the left side plate and the right side plate and located in the lower frame; the soil covering mechanism is mounted on the rear side of the lower frame; the seedling raising plate is placed in the center of the upper-layer plate; the walking system is installed at the bottom of the frame body. The automatic pepper seedling transplanter is simple in structure, convenient to operate, high in adaptability and reasonable in cost.

The invention discloses a leucite mineral separation system and process, and relates to the technical field of mineral separation, and the separation system comprises a magnetic field generation mechanism, a conveying assembly, a scraper, a guide plate, a tailing outlet and a concentrate outlet. The magnetic field generating mechanism is used for generating magnetic fields; the conveying assembly is used for conveying concentrate in the forward direction and conveying tailings in the reverse direction, the scraping plate is used for scraping the concentrate from the conveying belt, the flow guide plate is used for guiding flow of the concentrate so as to classify the concentrate, and therefore the purpose of conducting multi-stage classification treatment at a time can be achieved, and the classification efficiency is improved.

The invention discloses a satellite measurement and control remote sensing integrated task scheduling method and system, and mainly solves the problems of high failure rate of separation of measurement and control and remote sensing tasks, low scheduling efficiency and the like in the prior art. According to the implementation scheme, a low-orbit satellite network transmits a data packet generated by a measurement and control remote sensing task and receives the data packet through a ground station; the ground control center generates a task list; the ground station equipment generates equipment information and generates available forecast information through interaction with the low earth orbit satellite network; the ground control center integrates and preprocesses the equipment information and the available forecast information, calculates a task state vector, and represents the task state vector as a Deque double-end queue; performing task planning according to the double-end queue to obtain a legal forecast selected by the intelligent agent, resolving conflicts between the legal forecast and other available forecast, and updating states of other related tasks; and repeating the task planning step until the planning of all tasks is completed, and outputting a legal task scheduling plan. The method improves the task planning efficiency and the task completion rate, and can be used for environment monitoring, weather prediction, agricultural management, and disaster early warning and reconnaissance.

The present invention relates to the technical field of tar residue separation, and in particular to an online crushing, slag collection and separation system and process for large tar residue based on a pre-separator, wherein the online crushing, slag collection and separation system for large tar residue based on a pre-separator includes a pre-separator and a pre-separation pipe A and a pre-separation pipe B connected to the outlet end of the pre-separator, a crushing device respectively connected to the outlet ends of the pre-separation pipe A and the pre-separation pipe B, a centrifugal pump and a pretreatment device connected to the outlet end of the centrifugal pump, the crushing device is used to crush tar residue and graphite blocks, and the pretreatment device is used to precipitate and layer the crushed tar, tar residue, graphite blocks and ammonia water mixture; the present invention realizes the crushing, slag collection and drying of large tar residue and graphite blocks through a two-stage crushing treatment method composed of a crushing device and a drying unit, significantly reduces the risk of blockage in subsequent processes, meets the requirements of the coal blending process for material particle size, and improves the availability of tar residue.

The invention discloses an auxiliary device for hydrogen production by water electrolysis, which relates to the technical field of hydrogen production by water electrolysis and is characterized by comprising a base frame, a water inlet pretreatment unit, an electrolysis unit, a gas-liquid separation and gas monitoring module and an intelligent operation regulation and control unit. The inlet water pretreatment unit is used for deeply purifying a water source through a multi-stage filtering device to produce deionized water meeting the electrolysis requirement; the electrolysis unit electrolyzes the purified water into a gas-liquid mixture of hydrogen, oxygen and water vapor; the gas-liquid separation and gas monitoring module adopts a vertical separation structure and a secondary separation system, and is combined with a hydrogen side oxygen sensor and an oxygen side hydrogen sensor to realize efficient gas-liquid separation and real-time gas purity monitoring; the intelligent operation regulation and control unit dynamically regulates electrolysis parameters and gas pipeline states based on monitoring data, and automatic closed-loop control is achieved. The device has the advantages of thorough water purification, high gas purity, safe and reliable operation, intelligent control and the like.

The invention discloses a method for determining the content of monosaccharide in seaweed, and belongs to the technical field of biological detection. According to the method, an ion chromatography sugar separation system is adopted, a pulse ampere detector is combined, CarboPac PA20 is used as a sugar analysis column, and the eight monosaccharide components in the seaweed can be detected under the limited extraction and purification method. The method is low in detection limit, good in stability and suitable for measuring the content of free monosaccharide and polysaccharide hydrolyzed monosaccharide in common algae (such as brown algae, green algae and red algae).

The invention relates to the technical field of industrial intelligent management, in particular to an acid separation system energy efficiency analysis and dynamic optimization management platform which comprises an electric energy monitoring module, a density difference triggering module, a variable layering response module, a flow dissipation recognition module and a synchronous suppression adjustment module. According to the method, the node response trend is constructed through the electric power difference and the electric power direction sequence, the sensitive area with significant electric power fluctuation in the system is excavated, and the dynamic hierarchical binding of key variables is realized by combining the upstream electric power conduction logic and the concentration change direction, so that the aging identification and intervention precision of response variables is greatly enhanced. By means of the consistency evaluation of the change trend of the node electric power difference and the concentration fluctuation direction, the variable with the continuous response capability can be accurately screened out, so that the control strategy has dynamic plasticity in the variable level. And analyzing the flow change ratio of the variable binding flow section in the excitation state to identify the flow intervention point with the collaborative disturbance characteristic.

The invention provides an automatic shaft pulling, pipe sleeving and roll dividing system after film blowing and blanking, and the system comprises a roll material roll supporting assembly which comprises a pair of supporting assemblies and a shaft pushing mechanism, each supporting assembly is provided with a V-shaped mechanism and a moving mechanism, the V-shaped mechanisms are used for supporting an air swelling shaft so as to support roll materials, and the moving mechanisms are used for driving the V-shaped mechanisms to ascend and descend; the shaft pushing mechanism is used for pushing the air swelling shaft out of the coil stock; the conveying assembly is arranged between the pair of supporting assemblies, and the conveying assembly is provided with a V-shaped block used for placing the coil stock; the core tube stock bin comprises a core tube storage frame, a core tube lifting assembly and a core tube shifting mechanism, the core tube storage frame is used for storing core tubes, the core tube lifting assembly comprises a lifting mechanism and a V-shaped frame, the V-shaped frame is used for containing a set of core tubes, the lifting mechanism is used for driving the V-shaped frame to ascend and descend, and the core tube shifting mechanism comprises a material blocking mechanism and a material pressing mechanism. The material blocking mechanism is used for guiding movement of the core tube, and the material pressing mechanism is used for pressing the core tube when the air swelling shaft is inserted into the core tube.

The invention relates to the technical field of waste gas recycling, in particular to a refining agent regeneration method and system. The refining agent is used for removing impurities in polyolefin hydrocarbon raw materials, and the regeneration method comprises the following steps: sequentially and repeatedly purging and cooling the polyolefin refining agent by using nitrogen to respectively obtain first regeneration cooling exhaust gas and a purging refining agent; sequentially carrying out liquid separation and first pressure swing adsorption on the first regeneration exhaust gas to obtain a first hydrocarbon adsorption material; pressurizing and displacing the purging refining agent by using a polyolefin raw material to respectively obtain mixed exhaust gas and a regenerated refining agent; the mixed exhaust gas is subjected to liquid separation and second pressure swing adsorption in sequence, and a second hydrocarbon adsorption material is obtained; and desorbing the first hydrocarbon adsorption material and the second hydrocarbon adsorption material to obtain the polyolefin recycled material. According to the regeneration method, a three-stage coupling separation system of purging regeneration, liquid separation and pressure swing adsorption is constructed, and compared with a traditional thermal regeneration method, the recovery rate of hydrocarbon raw materials in regenerated exhaust gas of the refining agent can be increased only through pressure swing adsorption.

A device is configurable to cause playback of an input audio signal and, after detecting user input directed to activating a stem separation mode: (i) cause cessation of playback of the input audio signal; and (ii) until a stop condition is satisfied, iteratively: (a) identify a set of one or more segments of the input audio signal; (b) process the set of one or more segments using a stem separation module to generate a set of stem-separated segments, the set of stem-separated segments comprising a plurality of audio stems corresponding to different audio sources represented in the set of one or more segments; and (c) cause playback of at least one audio stem from the plurality of audio stems.

The invention provides a detection device for a density gradient centrifugal sample, and belongs to the technical field of detection devices. The device comprises a sample suction platform mechanism which is used for sucking layered samples to be detected in a centrifugal tube layer by layer and conveying the layered samples to a sample detection chamber of an optical detector mechanism; the optical detector mechanism is provided with a xenon lamp light source and a beam shrinking light path system and supports 200-1100 nm full-wavelength detection; and the automatic collecting platform mechanism is used for sub-packaging the samples detected by the optical detector mechanism. According to the invention, a separation system and a collection system are integrated into a continuous process, so that man-made interference is reduced, and the resolution ratio and efficiency are improved. The xenon lamp light source and the beam shrinking light path system are adopted, the detection precision and stability are improved based on the spectrophotometer principle, the detection wavelength can be freely selected, and the limitation of traditional dual wavelengths is broken through.