472results about How to "Improve concentration efficiency" patented technology

The present invention discloses a filling device and filling process, wherein the filling device includes: a deep cone thickener used for storing and concentrating tailing paste; a cementing material storehouse used for store cementing material; a stirring device used to receive concentrated tailing paste and cementing material from the deep cone thickener and the cementing material storehouse to mix them and stir to obtain filling paste; and a conveyer used for receiving filling paste from the stirring device and conveying the filling paste to mine goaf. By using deep cone thickener, the filling device through the invention has better concentrating efficiency, higher concentrating degree without using a filter for moisture abstraction operation to concentrated tail paste, hence the device is simple and cost low.

A virtual impactor device having reduced fouling includes injection ports within the separation zone to redirect particles that otherwise tend to impact the walls of the separation zone and produce fouling. The virtual impactor device preferably also includes an acceleration zone having concave and convex sections, which reduces fouling in that area. The virtual impactor device can be combined with various downstream components such as collectors, atomizers and various analytical devices.

The invention discloses a method for solid-liquid separation during tobacco sheet production through papermaking process, which includes steps: respectively extracting the fragments of tobacco stalk and tobacco leaf through hot water; respectively implementing horizontal centrifugal separation on the mixture of the fragments of tobacco stalk or tobacco leaf, and water, moving solid slag to the working procedure of defibrination, and moving the extract liquor eliminating coarse slag into a disc type separator, and feeding the obtained clear liquid into the working procedure of concentrating in next section; then concentrating the extract liquor, and spraying or coating the concentrated extract liquor on a formed fiber sheet substrate, drying, tabletting and forming. The production technique method adopted by the invention improves the use ratio for sheet production concentrators through papermaking technique and increases the inherent quality of the concentrated liquor, thereby improving the inherent quality of sheet products through papermaking technique.

The invention relates to a continuous preparation system and a preparation technology of whole grain grade tailing cemented filling slurry. The continuous preparation system mainly comprises a tailing slurry collecting buffer feeding device, a deep-cone thickener, a flocculating agent preparing and adding device, an underflow slag slurry pump, a cementing material storage bin, a cementing material measuring and conveying device, an air compression system, a water supply system, a filling accident pool, a stirring system and a filling slurry output pipeline. The preparation technology comprises the steps of conveying tailing slurry to the tailing slurry collecting buffer feeding device through the slag slurry pump, after reducing the pressure to 0.03 MPa through the collecting buffer feeding device and carrying out energy dissipation, feeding the tailing slurry into the deep-cone thickener, and adding a flocculating agent into the deep-cone thickener according to the principle that for per ton of tailing slurry, every 5 to 20 g of the flocculating agent is added, so as to obtain high-concentration tailing slurry with the concentration of 65 to 75%; and conveying the high-concentration tailing slurry and a cementing material into the stirring system according to the fact that the mass ratio of the high-concentration tailing slurry to the cementing material is 1 to (5 to 40), adding water, stirring, and preparing the mixture into the high-concentration whole grain grade tailing cemented filling slurry with the concentration of 65 to 75%. According to the continuous preparation system and the preparation technology, the system is simple, the automation degree during the preparation process is high, the operation is convenient, and the filling slurry can be continuously prepared.

Provided is an image sensor including an overcoating layer and at least two micro lenses formed on the overcoating layer. The image sensor is characterized in that the overcoating layer positioned below a clearance between the micro lenses is etched such that curved surfaces of the micro lenses extend to the etched overcoating layer, and a contamination in the bonding pad can be prevented.

The invention discloses a tea extract for effectively retaining aroma and taste of original tea and a preparation method and an application thereof. The tea extract comprises the following components in percentage by weight: 15-72% of tea polyphenol, 3-20% of caffeine, 10-45% of tea polysaccharide, 3-23% of amino acid and 0.01-0.25% of aroma volatile oil, and the total percentage by weight of the components is not larger than 100%. The preparation method comprises the steps of tea extraction, cooling clarification, primary concentration, secondary concentration and low-temperature drying. The tea extract for effectively retaining the aroma and the taste of the original tea is applied to instant tea drinks, tobacco or food. The technologies such as medium and low temperature extraction, normal temperature membrane concentration, and low temperature drying are adopted, and the oxidization and the effusion of main thermosensitive substances such as aroma and taste are reduced. The preparation method is simple, the production efficiency and the extraction rate are high, the extract has strong aroma after being brewed, and the tea water is green or orange, and is close to the original tea water in aroma, taste and color.

The invention provides a method for efficiently preparing stachyose from stachys sieboldii. The method is characterized by comprising the following steps: taking Chinese traditional vegetable stachys sieboldii as a raw material; extracting the stachyose by adopting a pure water homogenate method; and spraying and drying after the processes of filtering a homogenate by a cloth bag; decolorizing the filtered homogenate with macroporous resin, performing ultrafiltration purification and reverse osmosis concentration, and the like, wherein a reverse osmosis permeate liquid is used as water for the homogenate and the resin decolonization elution in the production and the like, so not only resources can be used fully to meet the requirement on production water supply, but also the influence on the purity of the stachyose in the whole production system, caused by pollutants such as saline matters and the like in a natural water source, can be reduced to further improve the purity and the quality of the stachyose. By using the method of the invention, the extraction rate of the stachyose prepared can reach 75 and 85 percent, the purity of the stachyose in a product reaches over 90 percent, and the total recovery rate of the stachyose in the whole process reaches over 60 percent. The method combines a traditional extraction method and a modern separation method, has a simple process and a large handling capacity, is suitable for industrial production, and simultaneously has high product purity, saves resources and the production cost, and has good economic benefits and ecological benefits.

This invention relates to a method for synchronously enriching and desalting minim albumens or polypeptide solution and verifying them directly, which takes SiO nm particles as the sorbent to adsorb proteins and their enzyme polypeptides efficiently and overcomes interference of high concentration salt.Since SiO nm particles are compatible with MALDI-MS very well and MALDI-TOF / MS analysis can be done directly to the adsorbed samples without elution to avoid the loss.

The invention discloses an object-based monitoring video concentration method. The method comprises the following steps: acquiring a foreground image and a background image of each video frame from the monitoring video, saving the background image in a database, extracting recognition features of the foreground image, orderly comparing the foreground image with feature distances of the recognition features of all foreground images in foreground cache by use of the foreground cache so as to number of objects of all foreground images, wherein, the same object is corresponding to the unique same serial number; and computing a movement direction value and a main color of the same object according to position and color information of the same object, and saving a computation result and the foreground image into the database; finally extracting the foreground image and the background image of the corresponding object from the database, thereby synthesizing a concentrated video. By use of the concentration method disclosed by the invention, the object in different time and spaces can be concentrated, a concentration rate of the monitoring video is improved, and the monitoring efficiency is improved.

The invention discloses a deep cone thickener, which comprises a main body, a stirrer device, a drive set, and a circulating system. The main body comprises an upper cylinder part, a cone part which is positioned below the upper cylinder part, and a lower cylinder part which is positioned below the cone part; the stirrer device is arranged in the main body; the drive set drives the stirrer device to rotate so as to stir a ground paste in the main body; and the circulating system is arranged outside of the main body, and makes the lower part of the lower cylinder part be communicated with the upper part of the lower cylinder part and the upper cylinder part respectively, so as to convey the ground paste to the upper cylinder part and / or the upper part of the lower cylinder part from the lower part of the lower cylinder part. The deep cone thickener has an upper and lower dual circulating system, has an arch breaking effect to prevent raker holding when in the upper circulating, and can accelerate sedimentation of the ground paste in the cone part when in the lower circulating, so as to achieve the effect of fast concentration and improve thickening efficiency.

The invention relates to a double-tailing discharging gravity-floating combined separation method and a device thereof, and belongs to a double-tailing discharging gravity-floating combined separation method aiming at slime and a device thereof. The aim of the invention is to solve the technical problems existing in the prior flotation machine that the separation effect of ultrafine grains is low and the upper limit of the column flotation is difficult to be effectively related with the lower limit of the heavy medium separation. The method comprises three steps of crude ore flotation and rough separation and graded tailing discharging, gravity scavenging tailing discharging and gravity separation finished ore reflotation. The double-tailing discharging gravity-floating combined separation machine comprises a jet flow flotation column, a first tailing discharging graded device and a secondary tailing discharging graded device; the first tailing discharging graded device is arranged below the jet flow flotation column, a cyclical middling underflow opening of the first tailing discharging graded device is connected with the secondary tailing discharging graded device, and a central ore feeding pipe of the secondary tailing discharging graded device is connected with the jet flow flotation column. The method and the device have multiple effects of coarse slime separation and highly selective floatation of fine coal and ultrafine coal, thereby improving the efficiency of the gravity-floating combined separation.

The invention discloses a complex enzyme preparation for extracting effective plant components and a method for preparing the complex enzyme preparation. The complex enzyme preparation comprises components of glycanase, cellulase, pectinase, beta-glucanase and alpha-amylase. The activity of the glycanase is 3000IU / g, the activity of the cellulase is 2000IU / g, the activity of the pectinase is 20000IU / g, the activity of the beta-glucanase is 5000IU / g, and the activity of the alpha-amylase is 3000IU / g. The method for preparing the complex enzyme preparation includes symbiotically cultivating, extracting and concentrating bacillus licheniformis, bacillus subtilis, aspergillus niger and trichoderma viride according to certain proportions, then adding expanded plant protein carriers into the bacillus licheniformis, the bacillus subtilis, the aspergillus niger and the trichoderma viride; spraying mist at low temperatures to obtain the complex enzyme preparation. The complex enzyme preparation and the method have the advantages that the effective component recovery rate of complex enzymes can be increased as compared with a method for individually fermenting and producing various enzymes and then combining the various enzymes with one another, production technologies can be simplified, the production cycle can be shortened, the production cost can be lowered, the production efficiency can be greatly improved, the stability of the activity quality of final products can be guaranteed, and plant extraction complex enzyme production can be industrialized.

The invention relates to the field of starch sugar manufacturing, in particular to a preparation method of syrup special for moon cake. According to the method, corn starch is taken as the raw material, and the syrup is prepared through the steps such as size mixing, enzyme immersion, liquefaction, saccharification, glucoside conversion, decolorization, filtering, ion exchange, concentration, blending and the like. The prepared syrup comprises 20-25% of maltobiose, 12-17% of maltotriose, 15-20% of maltotetraose, 8-12% of tetrasaccharide-above, 3-5% of oligoisomaltose, 25-30% of fructose, and less than 3% of glucose. The syrup special for moon cake produced through the method is sucrose-free; the sweetness is slightly lower than that of the sucrose; the sweet taste is mild and pure, cool and refreshing; and the syrup is provided with a sweet flavor peculiar to honey, and has the advantages that the oil return property is obvious, the moisture retention property is good, the starch retrogradation is prohibited, the shelf life and the quality guarantee period of products are effectively prolonged, and the like.

The invention discloses a mobile adsorption concentration-thermal desorption device and an application method thereof. The device comprises a control system, a gas circuit part and a mobile cold trap consisting of a heating module, a refrigerating module and a mobile mechanism. The method comprises the steps of control system starting, operation of the refrigerating module, sample collection, operation of the heating module, sample desorption, pipeline cleaning, and the like. The device has the advantages that a refrigerating fin is easy to damage after long-time overheating, and the gas adsorption and gas enrichment efficiency is effectively improved. In comparison with the prior art, the device shortens the adsorption and analysis time, reduces the time consumption, lowers the cost and improves the concentration efficiency.

The invention relates to a purge and trap device which comprises a U-shaped purge tube, a stainless steel tube line, a trap tube, electromagnetic valves and conversion valves. The carrier gas tube line is connected with the carrier gas inlet of the purge tube, and the carrier gas outlet, the stainless steel tube line, the first electromagnetic valve, the first conversion valve, the trap tube, the second conversion valve, the second electromagnetic valve and the air outlet at the other end of the purge tube are connected in sequence. The first conversion valve is further connected with the inlet of a chromatographic instrument, and the second conversion valve is further connected with the carrier gas tube line. The purge tube is provided with beams of quartz glass tubes with diameter of 0.175 micron, and the quartz glass tubes are sintered to a porous quartz tube sieve plate on which water sample to be tested is placed. The trap tube is filled with an adsorbent and externally sleeved with quartz tubes and spiral heating assemblies. The invention has the advantages of providing a concentration device which has simple structure and convenient use and can be directly used for chromatographic analysis to analyze trace volatile organic matters in the water sample.

The invention relates to condensed polytetrafluoroethylene aqueous dispersion, which comprises 30-65wt% of polytetrafluoroethylene dry material and 3-10wt% of emulsifying agent relative to the polytetrafluoroethylene dry material, wherein the emulsifying agent comprises secondary alcohol ethoxylate emulsifying agent A of which the cloud point is 30-45DEG C, and secondary alcohol ethoxylate emulsifying agent B of which the cloud point is 70-95DEG C, and the mass ratio of the emulsifying agent A to the emulsifying agent B is (2:3)-(3:2). The invention also provides a preparation method for the condensed polytetrafluoroethylene aqueous dispersion and an application of the condensed polytetrafluoroethylene aqueous dispersion to preparing water-based paint. The condensed polytetrafluoroethylene aqueous dispersion provided by the invention has good stability, a film with a thicker coating can be obtained in the processing and applying process, the glossiness can be drastically improved, and the condensed polytetrafluoroethylene aqueous dispersion can be effectively used for various water-based paints. The preparation method provided by the invention has the advantages of simple technology and strong maneuverability and is suitable for industrial large-scale production.

The invention discloses a large-scale central hydraulically-driven hydraulic automatic rake-lifting thickener, solving the problem of smaller specification of a traditional thickener. The large-scale central hydraulically-driven hydraulic automatic rake-lifting thickener is characterized in that the upper part of a transmission device is connected with a rake-lifting device and a hanging device, and four hydraulic motor speed reducers are used for driving, a beam supporting seat of the transmission device is connected above a rake-lifting hydraulic cylinder of the rake-lifting device by an upper supporting seat, an upper box body of the transmission device is connected below the rake-lifting hydraulic cylinder by a lower supporting seat, and a distributing device is mounted below the hanging device. The invention can automatically adjust balance, keep synchronization, protect equipment from being damaged, realize stepless speed regulation, automatically and fully lift the rake by adopting the four rake-lifting hydraulic cylinders, fully lift the lifting part of the transmission device, a long rake, a short rake frame and an auxiliary rake to fully satisfy the large-scale requirement of the equipment and has the advantages of high equipment degree of automation, wide range of applications, safety, reliability, stable operation, high working efficiency, and the like.

The invention provides a sludge building material and a method for preparing the same, which particularly relates to a fresh sludge building material and a method for preparing the same. The building material consists of sludge, shale and fly ash. In the method, a gravity thickening pond of the prior municipal sewage plant is utilized, the prior gravity thickening process is adopted, the shale and the fly ash are added in the fresh sludge in the pond, and the discharged enriched mixture are directly used as the building material or the discharged enriched mixture is further dewatered to obtain the finished product. The building material has the advantages of few components and large sludge consumption. The method has the advantages of simple method, mature technique and low cost, and provides a new approach for the treatment and the utilization of sludge resources and solves the problems of large land occupation, difficult investment and environmental pollution in the municipal sewage plant. The technical proposal of the invention can be wide applied to the municipal sewage plant adopting the continuous current gravity thickening process. The product prepared by the technical proposal of the invention can be widely applied to the preparation of building bricks, porcelain granules and the like.

The invention provides a concentration system for rapidly concentrating slurry, comprising a cylindrical concentration tank and a slurry pumping pipeline located at the bottom of the cylindrical concentration tank, wherein a vacuum filtration pipe is arranged at the part of the concentration tank, which is 1 / 3-1 / 5 of the depth from a tank bottom; the bracket is arranged on a side wall of the concentration tank and is used for supporting the vacuum filtration pipe; an external connector of the vacuum filtration pipe is arranged on the wall of the concentration tank; the vacuum filtration pipe extends out of the concentration tank through the external connector of the vacuum filtration pipe, and is connected with an air compressor through a three-way connector and a vacuumizing device; a valve and a vacuum meter are arranged on a water guide pipe between the three-way connector and the vacuumizing device; and a valve and an air pressure meter are arranged on an air pumping pipe between the three-way connector and the air compressor. The vacuum filtration pipe is in a spiral annular shape and is wound in the same plane; a gap of 50-60 cm is reserved between a pipeline of the outermost ring and the tank wall of the concentration tank; and compared with a method for purely utilizing self-gravity effect to realize slurry concentration, the concentration system provided by the invention can realize the slurry concentration by the combined action of gravity and negative-pressure pressure difference, so that the concentration efficiency is greatly improved.

The invention discloses a method for extracting and purifying natural brown pigment from walnut epicarp. The method comprises the following steps: by using the walnut epicarp as a raw material, extracting the walnut epicarp to obtain crude brown pigment extract with water solution of ethanol, separating and purifying the crude brown pigment with petroleum ether, chloroform, acetic ether and n-butyl alcohol as extracting agents, reducing the pressure and drying each extracting agent to obtain three purified brown pigments with different colors. The method is simple and feasible, has low cost, good product quality and good stability, changes waste walnut epicarp after the walnut is processed into valuable, and develops a new resource and a new path for seeking a new natural brown pigment; and the extracted natural brown pigment is widely applied in the fields of food, cosmetics, textiles and pharmacy.

The invention discloses a method for separating and enriching lithium from magnesium lithium. The method includes: diluting and filtering salt brine to obtain nanofiltration raw water; putting the nanofiltration raw water into a first nanofiltration separation device for magnesium and lithium separation to obtain first nanofiltration concentrated water and first nanofiltration fresh water; puttingthe first nanofiltration fresh water into a reverse osmosis device for first concentration to obtain reverse osmosis concentrated water and second nanofiltration fresh water; putting the second nanofiltration fresh water into an electrodialysis device for secondary concentration to obtain electrodialysis concentrated water and electrodialysis fresh water, wherein the electrodialysis concentratedwater is a solution enriched with lithium ions. In the method, four membrane separation technologies of ultrafiltration, nanofiltration, reverse osmosis and electrodialysis are coupled in a certain order, and high efficiency separation and enrichment of lithium in the salt brine can be achieved by making full use of the advantages of the various membrane separation technologies.

The present invention discloses a preparation device of a fructus hippophae juice. The preparation method comprises a squeezing device, a horizontal screw centrifuging device, a concentrating device and a filling device. A material outlet of the squeezing machine is connected with a material inlet of the horizontal screw centrifuging machine; a material inlet of the concentrating device is located at the lower part of a liquid collecting box of the horizontal screw centrifuging machine and a material inlet of the filling device is connected to a material outlet of the concentrating device; and the horizontal screw device comprises a horizontal screw main body, a rotary drum and a screw inside, a material feeding tube with a material inlet, a speed reduction motor, a liquid collection tank, and a residue discharge port and a pressure sensor arranged on the residue discharge port used for controlling the outflow of the residues. The device can effectively remove pectin and fibers in the fructus hippophae juice and realizes the automatic production of the fructus hippophae juice.

This invention discloses a method for purifying and concentrating Phellinus igniarius polysaccharide by combined membrane separation technique. The method comprises: (1) culturing in liquid to obtain Phellinus igniarius polysaccharide fermented solution; (2) performing solid-liquid separation with gauze or frame filter cloth; (3) separating the fermented solution with non-grade ceramic membrane system to obtain clear Phellinus igniarius polysaccharide solution; (4) purifying and concentrating with an organic ultrafiltration membrane system with molecular weight of 5000 grade to obtain concentrated Phellinus igniarius polysaccharide solution; (5) freeze-drying or spray-drying to obtain Phellinus igniarius polysaccharide dry powder. The method avoids the use of organic solvent of ethanol, and has such advantages as high separation and concentration rate, low energy consumption, no pollution, low cost and short time, thus is suitable for mass production.

The invention discloses a peripheral transmission center automatic rake-lifting thickener, which relates to the technical field of slurry thickeners and overcomes the defects that a conventional peripheral driven thickener cannot integrally lift a rake or a peripheral transmission device generates transverse displacement when a rake frame lifts so as to cause degluing of a tyre, derailing of a roller and the like. The thickener is characterized in that: a center bearing of the thickener consists of a fixed support, a seat ring, a slewing bearing, a rotary rack and a sliding rack; the rotary rack is provided with two hinged supports and four rake-lifting oil cylinders, and four sides of the rotary rack are provided with four sliding keys; four sides of the sliding rack are provided with four sliding grooves, the four sliding keys are inserted into the four sliding grooves respectively, and piston posts of the four rake-lifting oil cylinders are fixed on the sliding rack; the lower partof the sliding rack is fixedly connected with a rotary cage, and the lifting of the sliding rack can be controlled by driving the rake-lifting oil cylinders so that a rake rack is integrally lifted; and a transmission rack is not lifted along with the rake rack so that the transverse displacement of the transmission device is avoided and the transmission mode of the thickener is suitable for peripheral tyre transmission and peripheral roller transmission or peripheral rack transmission.

The invention discloses a pu'er raw tea extract for effectively retaining quality of original tea and a preparation method and an application of same. The pu'er raw tea extract comprises tea polyphenol, caffeine, tea polysaccharide, amino acids, and an aroma component. The mass percents of the components are respectively as follows: 25-69% of tea polyphenol, 8-20% of caffeine, 10-30% of tea polysaccharide, 5-23% of amino acids, and 0.01-0.1% of aroma component. The sum of mass percents of the component is not greater than 100%. The preparation method comprises the steps of: tea digestion, cooling and clarification, primary concentration, second concentration and low temperature drying. The pu'er tea extract is applied to instant tea beverages, tobacco or foods. Oxidation and loss of main thermosensitive substances such as aroma and taste are reduced by middle- and low-temperature digestion, constant temperature film concentration and low temperature drying technologies and the like. The preparation method is simple, and the aqueous solution of the extract has a scent and is strong in aroma, smooth to drink, sweet and liquid-engendering, and red and bright in liquor color. The pu'er raw tea extract is similar to the original pu'er tea in tea liquid scent, taste and liquor color.

The invention relates to a purification process for thymosin alpha 1 after chemical synthesis. Specifically speaking, the conventional manner of combined ion exchange and vacuum condensation for desalination and condensation of thymosin alpha 1 obtained through chemical synthesis is changed into one-shot nanofiltration in the invention. The process provided in the invention has the advantages of simpleness, high efficiency, low energy consumption and suitability for industrial production.

The invention discloses a waste water disposal technique by union of steam recompression evaporation and flue spraying technology. The technique includes steps of removing suspended solid and calciumfrom waste water; then delivering waste water to a raw water tank by a water delivering pump after filtering, delivering waste water to a preheater by a raw water pump and a raw water filter to heat;after preliminarily preheating the waste water, heating in a pipe box at the lower part of the heater without evaporation, and then entering a gas fluid separator to carry out flashing and generate enough steam, absorbing steam to a steam compressor; using the secondary steam compressed and heated by the steam compressor as a new heat source and delivering to a shell side of the heater to releasethe potential heat; closing a steam door and realizing the self-circulation evaporation and heat transfer; drawing waste water without being evaporated in the gas fluid separator at a conical side ofthe lower part; delivering the circulated pump to the heater to circularly absorb heat; after circular evaporation for many times, discharging concentrated waste water from one path of the bottom partof the gas fluid separator to a concentrated water box and then delivering to a flue to spray and evaporate; discharging the other path to the raw water tank to adjust water balance. The waste waterdisposal technique is applicable to the treatment of waste water of a heat-engine plant.

The invention discloses a pu'er tea active paste for effectively retaining original tea aroma and taste and a preparation method of same. The pu'er tea active paste comprises tea polyphenol, caffeine, tea polysaccharide, amino acids, and an aroma volatile oil component. The mass percents of the components are respectively as follows: 10-67% of tea polyphenol, 2-20% of caffeine, 10-45% of tea polysaccharide, 3-23% of amino acids, and 0.01-0.1% of aroma volatile oil component. The sum of mass percents of the components is not greater than 100%. Oxidation and loss of main thermosensitive substances such as aroma and taste are reduced by middle- and low-temperature digestion, constant temperature film concentration and low temperature drying technologies and the like, and active enzymes in the original tea and active flora are prevented from being damaged. The preparation method is simple, and the chronic fermenting change of the original pu'er tea continues: the older, the better. The pu'er tea active paste has a scent and is strong in aroma, pure and mild in taste, red and bright in liquor color, and convenient to store. The pu'er tea active paste after being brewed is similar to the original pu'er tea in tea liquid scent, taste and liquor color.

The invention relates to air-lift membrane filtration complete equipment. The air-lift membrane filtration complete equipment consists of a membrane filtration system, a feed pump, a gas supply system, a tail gas solvent reclaiming system and an energy reclaimer, wherein the membrane filtration system consists of a kettle body 2, a circulating pipe 9 and a membrane component 10; the gas supply system consists of a compressed gas source and a gas flowmeter; the tail gas solvent reclaiming system consists of a tail gas condenser, a gas-liquid separating tank, an adsorption column and a dryer; in the kettle body, an upper cylinder body is a circulating area and a lower cone body is a sedimentation area; the circulating pipe is arranged on the side wall of the kettle body; the membrane component is encapsulated in the circulating pipe and is connected with the compressed gas source; a transmembrane pressure and a membrane surface gas speed are controlled by adjusting a gas inlet and outlet valve of the kettle body, so that positive pressure filtration concentration is realized; membrane flux is improved through the strengthening effect of gas-liquid two-phase flow; and the tail gas solvent reclaiming system can reclaim air-lift solvent and convert tail gas pressure into electric energy or mechanical energy. The air-lift membrane filtration complete equipment has the advantages of low energy consumption, high reclaiming efficiency, mild filtration condition and the like.

The invention belongs to the technical field of environmental protection, and particularly relates to an online atmospheric fine particulate matter concentration and collection device and method. Thedevice comprises a PM2.5 cutting head, a water tank system, a virtual cutting system, a condensation circulating system and an online concentrated sample collection system, wherein the water tank system comprises a water tank, an electric heating rod and a temperature control digital display device, the PM2.5 cutting head is communicated with the water tank, the virtual cutting system comprises avirtual cutter, a concentrated airflow vacuum pump and a main airflow vacuum pump, the condensation circulating system comprises a condensing agent circulating pipe and a condenser, the condensation circulating system is used for circulating condensate to condense and grow up saturated particulate matters, and the online concentrated sample collection system comprises a biological sampling bottle,an electromagnetic valve, a relay, an automatic fraction collector and a computer subdivision constant flow pump. The device can concentrate the actual atmospheric fine particles by 7-10 times, and the concentration efficiency is high; technical support can be provided for subsequent online chemical component or toxicity detection; and the device is simple and convenient to operate, reliable, stable and low in maintenance cost.