367results about How to "Good separation effect" patented technology

The invention discloses a vacuum packaging method for symmetric hot rolling manufactured stainless steel clad plates and belongs to the technical field of steel rolling technologies. The method comprises cleaning stainless steel plates with acetone or ethyl alcohol and drying the stainless steel plates after removing oxide layers on the two surfaces of the two stainless steel plates; removing oxide layers on the low-carbon steel surfaces attached to the stainless steel plates, and then performing cleaning with acetone or ethyl alcohol and drying; painting isolating coatings between binding surfaces of the two dried stainless steel plates and then superposing the two stainless steel plates, and welding and fixing the peripheries together; putting the welded and fixed stainless steel plates between surfaces to be combined of two low-carbon steel plates. A through hole is drilled in the middle of one seal strip, the peripheries of the inner surfaces of the seal strips around the two low-carbon steel plates are welded, a negative-pressure machine is communicated with the through hole in the seal strip to pump air between the two low-carbon steel plates, vacuum pumping is performed till the air press is between 0.01 Pa and 1.0 Pa, and the hole is welded and sealed, accordingly, sealing of combined interfaces between the stainless steel plates and the low-carbon steel plates is completed.

The invention relates to a high COD, high ammonia nitrogen and high salinity industrial wastewater treatment method, in particular to a combination wastewater treatment process by chemical treatment, micro-organism treatment, membrane bioreactor advanced treatment and reverse osmosis composite membrane desalination finish machining treatment, belonging to the wastewater treatment. The method is an ideal wastewater treatment method which is characterized in that dilution is not used before the treatment, the membrane bioreactor treatment has high removal rate of COD and ammonia nitrogen, the contamination resistance reverse osmosis membrane is used for desalination and the quality of the treated water reach the medium-pressure boiler water consumption technical standards. By adopting the method of the invention, the wastewater which contains 800-6000mg / L of COD, 200-450mg / L of ammonia nitrogen and 2000-10000mg / L of total salt from the industries such as coal carbonization industry, nitrogen fertilizer industry, iron and steel industry and the like can be processed to desalted water for medium-pressure boiler through advanced treatment. The method can protect the environment, make waste profitable, save water and realize true zero emission.

The invention provides a multi-layer oil-water separator and a working method therefor. The separator comprises a water inlet and a water outlet, wherein a plurality of layers of separating materials are arranged between the water inlet and the water outlet; separating holes are formed in the separating materials; a runner is formed among the separating layers by virtue of a grid; the two sides of the grid are sealed; and the hole diameter of the separating holes is gradually reduced layer by layer from the water inlet to the water outlet. The multi-layer oil-water separator adopts a layer-by-layer filter mode, has good separating effect and relatively high filtration flux, and has cleaning and back cleaning functions, so that the service life of the separator is prolonged. The separator is compact in mechanism, high in integration and convenient for automatic operation and large-scale amplification.

The invention discloses a method of separating and purifying erythritol from fermentation liquid, comprising the steps of separating fermentation liquid cell, clarifying and primary purifying the fermentation liquid; decoloring and purifying the fermentation liquid, concentrating and crystallizing the fermentation liquid, crystallizing again for manufacturing the purified product of the erythritol etc. The method of the invention adopts a dish type centrifuge to separate the cell and uses a ceramic film to remove the impurity with quite large molecular weight such as protein etc.; the nano-filtration separation is firstly introduced into the separation and purification of the erythritol, which can dispense with the working procedures of decoloring, ion exchanging etc.; the pollution discharge quantity is reduced greatly, and at the same time the invention ensures the quality and improves the yield of the product. The purity of the erythritol product HPLC obtained by the method of the invention is more thatn 99.5 percent.

The invention discloses a system and method for separating and removing circulating tumor cell and blood platelet in blood, relates to the technical field of separation and removal of tumor cells, and aims at designing to solve the problems of poor effect on separating of circulating tumor cell, failure on blood platelet separation, failure on recycling of blood in the existing separating system. The system for separating and removing the circulating tumor cell and the blood platelet in the blood comprises a blood collecting device, a first micro-fluidic separating unit which is communicated with the blood collecting device through a pipeline, and a second micro-fluidic separating unit which is communicated with the first micro-fluidic separating unit through another pipeline; the first micro-fluidic separating unit is used for separating the circulating tumor cell in the blood; the second micro-fluidic separating unit is used for separating the blood platelet in the blood. The invention also provides a method for separating and removing the tumor cell and the blood platelet in the blood. With the adoption of the separating system, the circulating tumor cell and blood platelet in the blood of a patient with cancer can be effectively removed; the operation is simple and convenient; the separation effect is great; the spreading and metastasizing of cancer cells can be effectively controlled.

The invention discloses graphene-based hydrogel and a preparation method thereof as well as a preparation method and an application of a supercapacitor electrode taking the graphene-based hydrogel as an active material, and relates to a graphene material and a preparation method thereof as well as a preparation method of a supercapacitor electrode. The invention aims at solving the technical problems that a conventional preparation method of the graphene-based hydrogel utilizes a toxic reducing agent and is complex in operation. The graphene-based hydrogel disclosed by the invention is hydrogel formed by graphene or graphene and an ungraphitised carbon material. The preparation method comprises the following steps of: after oxidizing graphite into graphite oxide, dispersing the graphite oxide separately or with the ungraphitised carbon material in water to obtain graphene-based colloidal dispersion through reduction; after rotary evaporation or rotary centrifugal treatment at reduced pressure, obtaining the graphene-based hydrogel through leaching or washing; and after coating the graphene-based hydrogel on an electrode current collector, immersing the electrode current collector in electrolyte for dipping to obtain the supercapacitor electrode which can be used as the anode and / or cathode of a supercapacitor.

The invention relates to a high-speed vortex electric field and cyclone combined separation method and a cyclone separator. The method comprises the following steps: two electric fields independent from each other are arranged in the cyclone separator, an entrance section is used as an electrostatic field, and a separation section is used as a vortex electric field; an air flow containing impurities passes through the electrostatic field at the entrance section formed by a plate electrode and a corona electrode, and enters the vortex electric field at the separation section, impurity particles are ionized in the electrostatic field, electrified particles rotate at an accelerated speed in the vortex electric field under the combined action of the lorentz force and the electric field force, and the impurities impact the wall surface to be separated in a gathering manner through adjusting the electric field parameters. Compared with the traditional cyclone separator, the cyclone separator provided by the invention, can achieve better separating effect.

This invention relates to a method of prepare high-purity anthocyanin monomer from mulberry. It adopts ethanol to leach anthocyanin in mulberry; use cation exchange resin to carry out carry out initiative purification to mulberry ethanol; use counter-current chromatography technology to separate anthocyanin in mulberry anthocyanin crude extract, the solvent system composed by n-butanol, acetonitrile, mtbe ( TBME) and trifluoroacetic acid ( TFA) water solution. The volume ratio of TBME, acetonitrile and n-butanol is 1: 0.5 to 1: 1.25 to 3.5. The concentration of TFA water solution is 1 to 10 milliliter TFA in per liter water solution. This invention takes high speed counter-current chromatography instrument ( HSCCC) or low speed counter-current chromatography instrument ( SRCCC) as separation plant, effectively reduce preparation cost of anthocyanin monomer.

The invention a polyacrylamide heavy metal flocculating agent and a method for preparing the same.By the aid of the polyacrylamide heavy metal flocculating agent and the method, problems of large acidic heavy metal wastewater and sludge quantities treated by the existing traditional chemical precipitation methods, poor settleability of precipitates and incapability of stably reaching standards can be solved.The polyacrylamide heavy metal flocculating agent comprises polyacrylamide, formaldehyde, dimethylamine, carbon disulfide and sodium hydroxide.A volume ratio of polyacrylamide solution to the formaldehyde to the dimethylamine is 100:6:30-100:1.5:7.5, and a volume ratio of the polyacrylamide solution to the carbon disulfide to the sodium hydroxide is 100:10:17-100:1.5:1.5.The method for preparing the polyacrylamide heavy metal flocculating agent includes preparing amino-methylated polyacrylamide which is an intermediate product; preparing the polyacrylamide heavy metal flocculating agent which is a final product.The polyacrylamide heavy metal flocculating agent and the method have the advantages that required raw materials are easily available, processes for preparing the products are simple, reaction conditions are mild, the polyacrylamide heavy metal flocculating agent and the method are easy to implement and control and have excellent application prospects, and industrial production can be facilitated.

The invention relates to a separation method of dimethyl carbonate and methanol and mainly solves problems of high energy consumption and environmental pollution in the prior art. The problem is better solved by means of the technical scheme as follows: the separation method of dimethyl carbonate and methanol adopts extractive distillation, and an ionic liquid with hexafluorophosphate as an anionis adopted as an extraction agent of the extractive distillation. The separation method can be applied to industrial production of separation of dimethyl carbonate and methanol.

The invention relates to a method for preparing modification functional groups on the external surfaces of pores of a mesoporous silica material. The method comprises two steps of modifying the material and removing a hole-forming agent. The mesoporous silica material containing the hole-forming agent is reacted with organic siloxane with the functional groups in a dry inert organic solvent, and the reaction is carried out under the protection of nitrogen. Products after reaction are extracted by adopting acidified alcohol, the hole-forming agent is removed, and 3-(2,3-epoxypropoxy)propyl is simultaneously transformed into alkyl diol. The material can improve the screening capacity to proteins or peptides, greatly reduce the interferences of a high molecular weight biological matrix during the pre-treatment process of a sample and be applicable to selective enrichment to small molecule drugs and small peptides in the complex biological matrix.

The invention relates to an up flow type anaerobic reactor, which comprises a barrel of the reactor, a water distributor pipe arranged on the lower end of the barrel, a three phase separator composed of a cone diversion drum arranged on the upper end of the barrel and a gas hood arranged on the upper end of the cone diversion drum, a circular passage arranged between the lower end of the gas hood wall and cone diversion drum wall, a circular passage arranged between the cone diversion drum and the upper wall of the barrel, a settling zone barrel arranged on the upper end of the reactor barrel, a drain trough arranged on top of the settling zone barrel, the combination of two circular passages can separate sludge with water, gas with water at different position, has good separating effect of gas, sludge, water, thereby avoiding the problem of return-sludge flow interfered by inlet flow because of mixed liquor ascent passage sharing one passage with return-sludge flow in a conventional three phase separator, the invention can keep liquid flow in settling zone steady, fluid state closing to laminar flow, has good solid-liquid separation effect.

The invention relates to the rectifying technical field, concretely a coarse CS2 rectifying device and method, where the gas-liquid mixture of S, methane, sulfureted hydrogen and CS2 coming from a reactor and condensed by S condenser are rectified by rough removing tower, fine removing tower and finished product tower, i.e. three-tower continuous rectification. And it adopts a three-tower continuous rectifying mode, making the sulfureted hydrogen concentration reach 99.0-99.95%; after rectification, it pressurizes the uncondensed gas to continue condensation to recover CS2, and then feeds the recoverd CS2 into a Claus tail gas recovering system, avoiding environmental pollution and product waste caused by high-altitude exhaust of the uncondensed gas (or exhaust after burnt).

In the ketone oxamidinating reaction system with water mutually soluble low-carbon alcohol of 30-50 wt% concentration and excessive ammonia water content, the material including titania-silica molecular sieve is deposited at 60-85 deg.c in deposition rate of 0.5-3 cm / min for at least 10 min. The present invention can realize the continuous separation of titania-silica molecular sieve from reaction liquid and is suitable for cyclohexanone oxamidinating reaction system with titania-silica molecular sieve catalyst of 0.1-0.3 micron size.

The invention belongs to the technical field of mineral dressing and particularly relates to a carbonaceous shale inhibitor and a flotation separation method of molybdenum sulfide and carbonaceous shale flotation mixed concentrate. The carbonaceous shale inhibitor consists of alizarin and calcium lignosulphonate. The method comprises the following steps that the molybdenum sulfide and carbonaceous shale flotation mixed concentrate is used as raw materials, the alizarin and the calcium lignosulphonate are adopted for inhibiting carbonaceous shale, molybdenum sulfide minerals are subjected to flotation, and the flotation separation of the molybdenum sulfide minerals and the carbonaceous shale is carried out. Carbonyls and hydroxies in the alizarin form hydrophilic complexes with aluminum atoms in the carbonaceous shale, meanwhile, lipophilic groups of the calcium lignosulphonate can be adsorbed on the surface of the carbonaceous shale to generate non-polar solid surface monolayer absorption, and the lipophilic groups at the other end are hydrophilic, so the carbonaceous shale is hydrophilic, and the carbonaceous shale is inhibited. The carbonaceous shale inhibitor and the flotation separation method have the advantages that the technological process of the molybdenum sulfide and carbonaceous shale flotation separation is simplified, and a good separation effect is obtained.

The invention provides a reagent for coating layer processing on a capillary and a method for determination of the content of kappa-casein in cow milk. According to the embodiment of the invention, the capillary is used for determination of the content of kappa-casein in the cow milk through a capillary electrophoresis method; the reagent contains the following aqueous solutions: 200 mmol / L tris(hydroxymethyl)aminomethane; 120 mmol / L hexadecyl ammonium bromide; 80 mmol / L polyethylene glycol, and 60 mmol / L pentanediamine, wherein the pH value of the reagent is 8.5. Therefore, the method for determination of the content of kappa-casein by using the capillary obtained by using the reagent for coating layer processing on the capillary has at least one following advantages of good separation effect, short detection time, high repeatability and strong accuracy.

The invention discloses an ultrasonic synergetic crystal growing fruit juice freezing and concentrating method and an equipment thereof. A fruit juice storage tank of the equipment is connected with ascraper-type heat exchanger by a centrifugal pump, and the scraper-type heat exchanger and a centrifugal machine are positioned under a crystal growing tank with a heat preservation jacket and are connected with the crystal growing tank with the heat preservation jacket respectively; an energy converter is arranged in the crystal growing tank with the heat preservation jacket and connected with an ultrasonicator; and the centrifugal machine is connected with a collecting tank which is connected with the scraper-type heat exchanger by a pump. In respect of the method, clear fruit juice is obtained firstly and is pumped into the scraper-type heat exchanger for precooling. After the temperature of feed liquid in the scraper-type heat exchanger is reduced to freezing point and small ice crystals are generated, an agitating valve and an ultrasonic field generator in the crystal growing tank are started and concentrated solution is discharged and the ice crystals are separated after the icecrystals mature. In the invention, the ultrasonic synergetic effect greatly shortens time from core formation to maturing of ice crystals and the entrainment loss of active ingredients of fruit juiceis reduced, thus not only improving production efficiency but also meeting purpose of saving energy.

The invention relates to a method and an apparatus for manufacturing pure spirits, belonging to the technical field of brewing of distilled liquor and other alcoholic beverages. The apparatus comprises a rectification device, an active carbon adsorption tank, a filtering device and a pure spirit storage tank; the rectification device comprises a distillation still, a rectifying tower and a condenser, the top of the distillation still communicates with the bottom of the rectifying tower, and a steam inlet of the condenser communicates with a steam outlet on the top of the rectifying tower; thedischarge outlet of the distillation still of the rectification device communicates with the feed inlet of the active carbon adsorption tank, the discharge outlet of the active carbon adsorption tankcommunicates with the feed inlet of the filtering device, and the discharge outlet of the feed inlet of the filtering device communicates with the feed inlet of the pure spirit storage tank. According to the invention, purified water added in the process of extraction and rectification produces an extracting and purifying effect, has a good separating effect on impurities which are hard to separate and generates an effect of diluting and reducing alcohol content. Compared to conventional multi-tower for rectification, the invention has the advantages of little equipment investment, low production cost, shortened production flow and simple operation.

The invention relates to the technical field of sludge treatment, in particular to a membrane filter press for sludge treatment. The membrane filter press for sludge treatment comprises a machine frame, a filter device and a hydraulic device, wherein the machine frame is provided with a cavity; the filter device is arranged in the cavity of the machine frame; the hydraulic device is arranged on the side of the machine frame; the filter device comprises a pressing plate, a membrane filter plate and filter cloth; the membrane filter plate is fixed in the cavity of the machine frame; the filter cloth is arranged along the upper end of the membrane filter plate and the lower end of the adjacent membrane filter plate; the pressing plate for tensioning the filter cloth is arranged on one side of the membrane filter plate; and a gap is reserved between the adjacent membrane filter plates. Compared with the prior art, the membrane filter press for sludge treatment is high in filter speed, good in separation effect and easy and convenient to operate, effectively reduces the water content of a mud cake, reduces consumption of water for industrial cleaning, reduces environmental pollution and reduces production cost.

The invention relates to a method for separating and purifying bergapten. The processing steps include that radix angelicae pubescentis raw material is smashed into 60-100 meshes, 70-80% ethanol is used for reflux extraction, extract is added with active carbon with 0.5-1% of weight of raw material for stirring and destaining at the constant temperature of 40-50 DEG C, destaining solution is pumped into silica gel middle-pressure column subject to pre-treatment, 9-4:1 petroleum ether / ethyl acetate mixed liquor is used for eluting, eluent is collected in 500ml of each part, TLC detection is carried out, identical components are merged, bergapten eluent is obtained, 2-4 times volume of 70-80% methyl alcohol is used for flash melting at 40-50 DEG C, standing is carried out, crystal is filtered out, the process is repeated for 2-3 times, and drying in the shade is carried out, thus obtaining the product. By adopting the invention to produce bergapten, technology is simple, energy consumption is less, and purity is higher.

An application of the ginsenoside-Re in preventing and treating Parkinson's disease is disclosed. A process for extracting ginsenoside-Re includes immersing raw ginseng in water, dicocting, filtering to obtain liquid, concentrating, absorbing by macroreticular resin column, eluting with low-concentration alcohol, collecting the eluting liquid, recovering alcohol, and recrystallizing altermatively in alcohol-water and methanol-water.

An extracting method for high purity aluminum adopts an improved fractional crystallization method. The method includes that molten aluminum is injected into the middle of a primary crystallizer, under a stirring condition, pure aluminum enters a secondary crystallizer from a molten aluminum outlet inclined tube of the primary crystallizer, secondary crystallization is conducted continuously, and third-stage crystallization and fourth-stage crystallization or multi-stage crystallization are conducted till pure aluminum products with purity higher than 99.9995% are obtained. The pure aluminum products are sent to a following production line to be manufactured into high-end aluminum products. Molten aluminum containing impurities can return to a previous-level crystallizer to be purified again. The method is good in pure aluminum separation effect, does not need to melt and heat aluminum bars again, and is low in energy consumption and easy to operate.

The invention provides mud separation equipment. A separation device, a conveying baking device and a chemical supply device are arranged on a frame; the separation device is provided with a stirring tank and a mud storage hopper; the lower part of the stirring tank is conical; a first valve is arranged on a connecting pipe between the mud outlet of the conical bottom and the feed port of the mud storage hopper, and a second valve is arranged at the discharge port of the mud storage hopper; a U-shaped groove is formed in the conveying baking device, a helical blade is arranged in the U-shaped groove, a wet material port and an air inlet are formed in the lower end of the U-shaped groove, the wet material port is connected with the second valve, and the air inlet is connected with an air blower by virtue of an air pipe; an electric jacket is arranged on the air pipe; a water tank of the chemical supply device is communicated with a chemical tank through a water pipe; the chemical outlet pipe of the chemical tank is communicated with the chemical supply pipe by virtue of a water pump. Sludge deposited at the bottom of the tank is conveyed to the conveying baking device due to opening-closing coordination of the two valves of the mud storage hopper, and residual moisture in the sludge is baked by the conveying baking device, so that the discharged sludge is basically dehydrated and dried. The mud separation equipment has the advantages of good separation effect, small floor area, high working efficiency, and safety and environmental friendliness in use.

The invention relates to the technical field of lithium battery cell piece stacking machines, in particular to a pole piece feeding device of a lithium battery cell piece stacking machine. During feeding of an existing lithium battery cell piece stacking machine, due to the fact that pole pieces are very thin and have static, the pole pieces adhere to one another frequently, the situation that a mechanical arm picks up multiple pole pieces at a time occurs, if the multiple pole pieces are stacked in a cell structure, serious battery faults will occur. In order to solve the problem, the pole piece feeding device of the lithium battery cell piece stacking machine can prevent adhesion of the pole pieces and effectively prevent the static and remove the static. The pole piece feeding device comprises a piece fetching mechanism, a material box for containing the pole pieces, and a jacking mechanism, wherein the piece fetching mechanism, the material box and the jacking mechanism are sequentially arranged on a rack from top to bottom. The piece fetching mechanism is used for grasping the pole pieces in the material box. The jacking mechanism is used for driving the pole pieces in the material box to move upwards. The pole piece feeding device is characterized in that brushes and ion air knives are further arranged on the rack and located on the edge of a material box opening, and the ion air knives are located below the brushes.

The invention provides a wave sieve type grain cleaning mechanism, and belongs to agricultural machines. A driving shaft, a bent axle and a length adjustable type sliding rod assembly are mounted on aframe assembly, a driving pulley and two driving bevel gears are sequentially and fixedly mounted on the driving shaft, a driven bevel gear and a sleeve-mounted connection rod are fixedly mounted onthe bent axle, the driving bevel gears are engaged with the driven bevel gear, and a wave sieve type screen piece integrated body is configured above the frame assembly integrally, wherein the wave sieve type screen piece integrated body is formed through sequential hinging and series connection of N screen piece bodies through a plurality of pin-shaft combinations. The upper end and the lower endof the length adjustable type sliding rod assembly are connected with the pin-shaft combinations and a connection rod hinge. The wave sieve type grain cleaning mechanism adopts the wave sieve type screen piece integrated body to conduct wave-like type translation movement on grains, the effect that the grains are well separated from impurities is achieved, and the wave sieve type grain cleaning mechanism has the characteristics that the structure is novel and reasonable, the impurity cleaning working efficiency is high, the quality is good, and using is reliable.

The invention relates to the field of traditional Chinese medicine preparations, in particular to novel application of a honghuaxiaoyao preparation to treatmentt of premature ovarian failure. The honghuaxiaoyao preparation is prepared as follows: taking nine traditional Chinese medicines such as radix angelicae sinensis, radix paeoniae alba, rhizoma atractylodis macrocephalae, poria cocos, flos carthami, Chinese honeylocust spine, radix bupleuri, herba menthae and radix glycyrrhizae as raw materials; and extracting and separating active ingredients through a relatively improved extracting andseparating technology to prepare various preparations. Through a modern extracting and separating technology, extracting and separating effects are relatively good, a volatile oil extracting rate is relatively high, sufficient utilization of medical materials is facilitated, energy resource and cost are reduced, and product quality is improved. More importantly, the honghuaxiaoyao preparation is firstly applied to treat premature ovarian failure, so that a novel application is developed for clinical application of the honghuaxiaoyao preparation.

The invention discloses a method for simultaneously detecting thiourea and dulcin in flavor and fragrance by using high performance liquid chromatography, comprising the following steps: using high performance liquid chromatography diode array detection method to simultaneously detect thiourea and dulcin in flavor and fragrance, and calculating the contents of thiourea and dulcin in flavor and fragrance according to the standard curves of thiourea and dulcin. The conditions of the high performance liquid chromatography diode array detection method comprise: using a C18 chromatographic column, using acetonitrile and 0.02mol / L aqueous solution of dipotassium hydrogen phosphate as a mobile phase, and using a detection wavelength of 240-245 nm. The method can accurately carry out the qualitative and quantitative analysis of thiourea and dulcin in flavor and fragrance with good separating effect and wide linear range, with the advantages of simple, rapid, good selectivity, low cost and the like, and is suitable for a wide range of applications.