60results about How to "High separation purity" patented technology

The invention discloses a purification device for producing electronic-grade hydrofluoric acid, which relates to the technical field of hydrofluoric acid production, and comprises a rectifying tower body, tower plates movably connected in the rectifying tower body at equal intervals, overflow weirs fixedly connected on the tower plates, a rotating speed convenient regulation and control mechanism and a state monitoring feedback mechanism, the follow-up rod and the tower plates installed on the outer surface of the follow-up rod can be driven to synchronously rotate in the rectifying tower body, so that the gas-liquid contact area is increased, the gas-liquid contact time is prolonged, the mass transfer process between gas and liquid phases is promoted, in the rectifying process, the separation efficiency and purity can be improved, impurities in raw materials can be removed more easily, and the product quality is improved. And the rotation of the tower plate can enhance the mixing of the liquid on the tower plate, so that the liquid is more uniformly distributed on the tower plate, the residence time and dead zone of the liquid on the tower plate are favorably reduced, and the separation efficiency is further improved.

The invention relates to the technical field of wastewater treatment, in particular to an intelligent wastewater recovery and zero discharge control system, which is suitable for efficient separation and resource utilization of high TDS (total dissolved solids) and high COD (chemical oxygen demand) wastewater, and realizes intelligent control and resource utilization of a wastewater treatment process by combining a dynamic Bayesian network and a deep reinforcement learning algorithm. According to the system, wastewater with high TDS (Total Dissolved Solid Concentration) and high COD (Chemical Oxygen Demand) is treated by monitoring wastewater characteristics in real time, dynamically optimizing operation parameters and adopting a cross-flow PON (Passive Optical Network) pollution-resistant design and a POM (Polyoxymethylene) wide flow channel design, so that the aims of efficient separation, deep concentration and zero emission are fulfilled.

The invention provides a separation method of single-walled carbon nanotubes, which adopts a reversed-phase mode aqueous two-phase extraction separation of single chiral SWCNTs, and comprises the following processes: firstly preparing a PEG / Dex aqueous two-phase system and a single-walled carbon nanotube dispersion liquid SDC-SWCNTs dispersion liquid, then adding the SDC-SWCNTs dispersion liquid into an upper phase of the PEG / Dex aqueous two-phase system, then adding a SDS solution with a certain concentration into the system, and carrying out solid-liquid separation to obtain the single-walled carbon nanotubes. The preparation method comprises the following steps of: performing vortex mixing, centrifuging, adding an SDC solution with a certain concentration, performing extraction separation, and gradually increasing the SDC content in an extraction system to separate out single chiral single-walled carbon nanotubes with diameters from small to large. The separation method provided by the invention can realize rapid and efficient separation of the small-diameter single-walled carbon nanotubes.

The invention relates to a method for separating zirconium and hafnium through solvent extraction, and belongs to the technical field of hydrometallurgy. According to the method, zirconium and hafnium separation is achieved through a solvent extraction method, the novel extraction agent is adopted, the synergistic effect of the modified imidazole ionic liquid, the amide compound and tributyl phosphate is utilized, the process steps of solution acidification, extraction agent extraction, sulfuric acid solution washing and reverse extraction are carried out, and the zirconium solution and the hafnium solution are obtained through separation. The process method is simple, the separation effect is good, and the separation purity is high.

The invention discloses raw cheese fermentation, dehydration and block making integrated equipment, and relates to the technical field of cheese manufacturing, the integrated equipment comprises a pretreatment mechanism, a fermentation mechanism, a dehydration mechanism, a temperature control mechanism and a die cutting mechanism, the pretreatment mechanism is fixedly connected with the fermentation mechanism, and the pretreatment mechanism is communicated with the fermentation mechanism; the dehydration mechanism is fixedly connected with the fermentation mechanism, the dehydration mechanism is communicated with the fermentation mechanism, and the pretreatment mechanism, the fermentation mechanism, the dehydration mechanism and the die cutting mechanism are fixedly connected with the temperature control mechanism; the pretreatment mechanism performs multi-layer filtration on fresh milk and realizes preliminary separation of cream and skimmed milk by utilizing runners and valves of a pretreatment box, a cream box and a skimmed milk box, the dehydration mechanism accelerates dehydration forming through extrusion, inert purging, electromagnetic heating and vibration, and the temperature control mechanism alternately regulates and controls the temperature through a heating box and a cooling box. And the die cutting mechanism realizes accurate cutting and retracting actions of the block cheese.

The invention relates to a gas-liquid separator with a purification function and an electrolytic hydrogen production system. The gas-liquid separator comprises a pressure electrolytic bath, a circulating tank and three groups of gas-liquid separators, the pressure electrolytic cell electrolyzes water to decompose hydrogen and oxygen through an alkaline solution, the pressure valve controls the cathode liquid outlet to be opened after detecting that the air pressure in the pressure electrolytic cell reaches a high pressure value, and catholyte bubble water enters the circulation tank. The first-stage gas-liquid separator and the second-stage gas-liquid separator are used for receiving the catholyte containing bubbles at the first liquid outlet and the target gas containing more impurities at the third gas outlet, carrying out gas-liquid separation to obtain the target gas containing a small amount of impurities, and discharging the catholyte; target gas containing a small amount of impurities enters the third-stage gas-liquid separator, high pressure generated in the pressure electrolytic cell provides power for the target gas to pass through a separation membrane, the target gas is separated from the remaining impurities, the volume ratio of the target gas in gas exhausted from a first gas outlet of the third-stage gas-liquid separator is larger than 99.999%, and the gas exhausted from a second gas outlet of the third-stage gas-liquid separator is larger than 99.999%. And high-pressure hydrogen can be directly supplied.

The invention discloses a prebaked anode carbon capture system for industrial electrolytic aluminum and an operation method, and belongs to the field of carbon capture, the prebaked anode carbon capture system comprises a combined power generation device for supplying power to equipment, a flue gas treatment device and a carbon capture device; the flue gas treatment device comprises a roasting furnace and a calcining furnace, flue gas generated by the flue gas treatment device is subjected to multi-stage treatment to provide raw materials for the carbon capture device, and heat generated by the flue gas treatment device is subjected to multi-stage recycling to provide reaction conditions for flue gas treatment and drive a steam turbine to generate power; the carbon capture device comprises an absorption tower and a motor boiler, and the absorption tower receives flue gas and completes carbon capture under the assistance of steam. A series of efficient flue gas treatment units are adopted, and the purity of carbon dioxide is remarkably improved. In addition, the multi-stage regenerative cycle technology is designed, and the comprehensive utilization efficiency of heat energy is improved. And by adopting a steam-assisted vacuum temperature swing adsorption technology, the dynamic adsorption capacity of gas is enhanced, and the cycle service life of an absorbent is prolonged, so that the economical efficiency and the operating performance of the system are optimized.

The invention discloses a method for preparing high-purity L-lactic acid by regulating and controlling fermentation of kitchen waste through eggshell waste. The method mainly comprises the following steps: preparing a fermentation excitant from eggshells, carrying out staged heating fermentation, carrying out impurity removal treatment, carrying out acidification heating treatment, carrying out resin adsorption decoloration and deodorization, carrying out evaporation concentration, carrying out multi-gradient cooling crystallization purification, washing and acidifying. Compared with a traditional engineering bacterium screening fermentation method, the method disclosed by the invention can adapt to more diversified production environments and application requirements; meanwhile, aiming at a kitchen waste lactic acid fermentation liquid system with high grease and high protein characteristics, a lactic acid extraction process is optimized, by-products are volatilized by utilizing various modes of high-efficiency impurity removal and acidification heating treatment, and by virtue of modes of adjusting the total concentration of a surfactant, multi-gradient temperature control crystallization purification and the like, the content of the lactic acid in the kitchen waste is greatly improved. The high-purity lactic acid is separated from a kitchen fermentation system. The invention provides a low-cost, rapid, high-yield and directional L-lactic acid production method for regulating and controlling fermentation of kitchen waste by using eggshell waste.

The invention relates to a method for ultrasonic-enhanced extraction of a multicoloured leaf extract by using an ethanol and ethyl acetate cosolvent, and belongs to the technical field of chemical engineering and plant extraction. (2) synergistically degrading cellulose by using multi-component glycosidase; (3) cosolvent extraction; 4, chloroplast pigment is efficiently separated and purified, chlorophyll and other impurities in an extracting solution are effectively separated and removed through silica gel column chromatography, and therefore the high purity of the multicoloured leaf extract is achieved; according to the invention, ethanol and ethyl acetate are used as cosolvents to extract the multicoloured leaf extract, so that the extraction efficiency and the purity of the extract can be improved.

The invention discloses an alcohol distillation and purification system, belongs to distillation and purification of alcohol in the technical field of alcohol production, and aims to solve the technical problems that in the prior art, the content of methanol and n-propanol in finished edible alcohol exceeds standard values, and the quality of the finished product is low. Comprising a crude tower, an aldehyde removal tower, a water washing tower, a rectifying tower, a methanol removal tower, a recovery tower, an industrial alcohol purification tower and an industrial alcohol storage tank, the crude tower, the aldehyde removal tower, the water washing tower, the rectifying tower and the methanol removal tower are sequentially connected, and impurity outlets of the crude tower, the aldehyde removal tower, the water washing tower, the rectifying tower and the methanol removal tower are all connected with the recovery tower; low-concentration industrial alcohol in the recovery tower is input into an industrial alcohol purification tower, pure high-concentration alcohol output from the upper part of the industrial alcohol purification tower is conveyed to an aldehyde removal tower and a rectifying tower, high-concentration industrial alcohol output from the upper part of the industrial alcohol purification tower is conveyed to an industrial alcohol storage tank, and hot water output from the bottom of the industrial alcohol purification tower is conveyed to a water washing tower. The system can reduce the content of isoamyl alcohol, isobutanol and n-propyl alcohol in a finished product and improve the quality of the finished product.

The invention discloses a high-concentration organic wastewater treatment device, and belongs to the field of carbon dioxide waste gas treatment. The wastewater treatment device consists of a water inlet distribution unit, a sewage treatment unit, a three-phase separation unit, a gas separation and purification unit and an automatic control system, and solves the technical problems that an existing anaerobic reactor is easy to block and gas generated by anaerobic digestion is difficult to separate. The efficient conversion and collection of organic matters in the high-concentration sewage and the efficient separation and purification of methane / carbon dioxide / hydrogen in the generated energy gas can be realized, so that the recycling of the high-concentration sewage is ensured, and the method is suitable for the field of separation and purification of the high-concentration sewage and the energy gas.

The present disclosure relates to a method for separating naphtha, comprising: feeding naphtha and a first desorbent into a first adsorption separation tower for first adsorption separation to obtain a first extract and a first raffinate; feeding the first raffinate into a first rectifying tower for first rectification treatment to obtain a first stream mainly containing cycloalkanes and alkanes; feeding the first stream and a second desorbent into a second adsorption separation tower for second adsorption separation to obtain a second extract and a second raffinate; feeding the second raffinate into a second rectifying tower for second rectification treatment to obtain a second stream mainly containing alkanes; feeding the first extract and the second extract into a third rectifying tower for third rectification treatment to obtain a third stream mainly containing aromatic hydrocarbons and cycloalkanes; wherein the first desorbent is selected from heavy aromatic hydrocarbon components, and the second desorbent is selected from light hydrocarbon components. The method of the present disclosure has low cost, simple process, high separation purity and high yield.

This utility model discloses a gas-liquid mixture recovery device, relating to the field of gas-liquid separation devices. The utility model includes a separation device comprising a separation tank body. An inlet pipe is disposed on one side of the inner side of the separation tank body. An overflow cylinder is fixedly disposed at the lower axis of the inner side of the separation tank body. A cavity is formed between the outer side of the overflow cylinder and the inner side of the separation tank body. The outlet end of the inlet pipe extends into the interior of the overflow cylinder. This utility model achieves efficient three-phase separation of gas, liquid, and solid through the cavity structure formed by the overflow cylinder and the separation tank body. The inlet pipe leads directly into the interior of the overflow cylinder. After the mixture is slowed down by a buffer mechanism, the gas naturally floats to the surface and is discharged from the top outlet. The liquid overflows evenly into the cavity through overflow teeth, and solid particles settle under gravity. Simultaneously, an independent drain outlet is directly connected to the bottom of the overflow cylinder to specifically discharge deposited solid impurities, solving the clogging problem caused by solid accumulation in traditional devices.

The application discloses an extraction device for natural product separation, which comprises an extraction tank, a membrane separation assembly, a stirring motor, a temperature control assembly and a controller. The temperature control assembly adopts an up-down partitioned cold-hot temperature control design, and a heat insulation partition fence is arranged between the cooling pipe and the heating pipe. In combination with an anchor type gentle stirring, denaturation of active ingredients is avoided. The membrane separation assembly realizes three-stage gradient separation through a primary ultrafiltration membrane, a medium-level nanofiltration membrane and a high-level affinity membrane. The high-level affinity membrane is loaded with replaceable biological ligands to accurately enrich target components. A structure for real-time detection of concentration and activity of an extraction agent is matched, and the whole process is automatically regulated by electric control valves and the controller. The application can efficiently separate natural active substances of targeted membrane protein targets and drug resistance related targets, completely retains the activity of components, has high separation purity, high automation degree, and recyclable extraction agent, is suitable for laboratory research and development and small-scale industrial production, and meets the extraction requirements in the fields of biological experiments, agriculture and biological medicines.

The invention discloses a centrifugal liquid-liquid phase separation system and method, the phase separation system comprises a raw material tank, a booster pump, a cooler, a spiral phase separation pipeline, a heavy phase extraction valve, a heavy phase extraction sensor, a light phase extraction valve, a light phase extraction sensor and a reflux valve, the liquid outlet of the raw material tank is connected to the cooler through the booster pump, the cooler is used to cool the solution discharged from the raw material tank; the liquid outlet of the cooler is connected to the liquid inlet of the spiral phase separation pipeline, the spiral phase separation pipeline is provided with a heavy phase extraction port at a corresponding position of the outer wall of different layers of pipelines, the heavy phase extraction port is provided with a heavy phase extraction sensor and a heavy phase extraction valve, the liquid outlet of the spiral phase separation pipeline is connected with a light phase extraction pipe and a reflux pipe in parallel, and the reflux pipe is connected to the liquid inlet of the raw material tank. The centrifugal liquid-liquid phase separation system of the invention realizes the separation of heavy phase solution and light phase solution by using the centrifugal force generated by the spiral phase separation pipeline, and the system structure is more compact and occupies a small area.

The invention discloses application of an acer palmatum 'Jinling Huangfeng' extract in preparation of a medicine for preventing and treating breast cancer, and belongs to the technical field of natural product extraction. The invention further discloses an extraction method of the acer palmatum 'Jinling Huangfeng' extract and a separation method of active ingredients of the acer palmatum 'Jinling Huangfeng' extract. Scratch repair experiments directly prove that the acer palmatum 'Jinling Huangfeng' extract can significantly inhibit the migration ability of highly metastatic breast cancer cells MDA-MB-231. The separation method of the active components of the acer palmatum 'Jinling Huangfeng' extract is closely linked with anti-breast cancer metastasis activity screening, so that the experimental process has definite pharmacological guidance quality, the efficiency and success rate of finding the active components are greatly improved, and a high-value candidate resource is provided for developing anti-metastasis drugs.

The invention belongs to the technical field of medicine, and discloses a compound for treating osteoarthritis and application thereof, the compound is named as 3, 8-dihydroxy-9-methyl-2-fenchene, and the molecular formula is C11H18O2. According to the application of the 3, 8-dihydroxy-9-methyl-2-fenchene disclosed by the invention, the 3, 8-dihydroxy-9-methyl-2-fenchene is used for preparing the medicine for treating osteoarthritis. The medicine for treating osteoarthritis is a tablet, an injection or a capsule.

The invention discloses a positive and negative photoresist separation device and separation method for recycling a PCB developing solution, and relates to the technical field of photoresist separation, the positive and negative photoresist separation device comprises a solution barrel, an equivalent intermittent feeding mechanism is arranged on the solution barrel, and an auxiliary feeding and stability maintaining mechanism is arranged below the equivalent intermittent feeding mechanism; due to the arrangement of the auxiliary feeding and stability maintaining mechanism, an extraction solvent and a mixed solvent are different in density, the extraction solvent is directly fed to the bottom in a solution barrel under the cooperation of a discharging pipe, an auxiliary pipe and a feeding hole, the extraction solvent is injected from the bottom, and the solvent is rapidly diffused at the bottom by means of the convection effect generated by the density difference; compared with the mode that the solvent is fed from the surface of the solution, the solvent feeding device is more efficient, and the situation that when the solvent is fed from the surface, the impact force of the solution makes contact with air, a large number of bubbles are introduced to affect the mixing effect, and then the subsequent separation process is affected is avoided.

The application provides a method for extracting lithium from waste batteries, which comprises the following steps: charging a waste lithium ion battery, crushing the battery under water to obtain a slurry; performing dielectrophoresis treatment on the slurry to separate negative electrode active material and positive electrode active material, and then performing plasma activation treatment on the obtained positive electrode active material slurry to obtain activated positive electrode active material; and then mixing the activated positive electrode active material with a lithium ion sieve adsorbent, performing first leaching and desorption, and obtaining a first lithium-containing solution. The method adopts dielectrophoresis separation treatment, effectively improves the separation rate and separation purity of the positive and negative electrode materials, simultaneously performs low-temperature plasma activation treatment on the separated positive electrode active material, effectively reduces the leaching resistance and contact efficiency of lithium, and adopts a lithium ion sieve adsorbent to perform lithium-specific adsorption and in-situ desorption, so that the recovery rate and purity of lithium recovery can be effectively improved.

The utility model discloses a kind of metal multistage sorting devices for lithium battery recycling, it is related to lithium battery recycling equipment field.The device includes the processing cylinder of inclined arrangement, and the peeling assembly and screening assembly are coaxially arranged in processing cylinder, and feeding filter plate with through-hole and driving motor are equipped at inlet, and driving motor transmission connects two components.Peeled off roll with rubber particles is used to peel off outerwear in peeling assembly, and screening assembly is separated by multistage baffle and discharge port, and external support assembly guarantees stable operation, and dust isolation net and powder collecting box with negative pressure impeller are arranged at air hole.The device realizes integrated processing, improves efficiency, reduces blockage and core damage, improves separation purity, effectively collects dust, and is suitable for efficient environmental protection recovery of waste lithium battery.

The invention discloses a purification method and application of bacitracin A, and relates to the field of biology. According to the method for purifying the bacitracin A, preparation of the high-purity bacitracin A is achieved through liquid chromatographic separation, the purity of the bacitracin A can reach 95% or above, the separation and purification process of the high-purity bacitracin A is simplified to a great extent, the loss of reagents in the separation and purification stage is reduced, and the yield of the high-purity bacitracin A is increased. The method has the advantages of high separation purity, less organic solvent dosage, simple device, simple and convenient process operation, environmental protection and the like, and is suitable for process production.

The utility model provides a kind of multistage condensing structure of air-water separation equipment, comprising: condensing shell, the lower end of condensing shell is provided with support base, the inside of condensing shell is also provided with two-stage separation mechanism, compared with prior art, the utility model has the beneficial effects as follows: by setting pre-separation section, by setting cyclone cavity in inlet pipeline and introducing low-temperature cold blast stream for tangential injection, the residual cold of itself system can be utilized to precool and cyclone dehumidification to inlet high-temperature high-humidity gas, so as to reduce instantaneous condensing load to improve equipment service life, while reducing the main cold source load and energy consumption of subsequent condenser, improve overall dehydration efficiency and equipment operation economy, another by setting two-stage separation mechanism, condensing efficiency and separation purity are greatly improved, significantly reduce the overall energy consumption of system and enhance the adaptability to complex gas composition.

The utility model discloses a low-temperature rectification device for separating isotopes, which relates to the technical field of isotope rectification and comprises a reboiling tank, a steam pipe and an adding pipe are fixedly communicated on the reboiling tank, a transfer box is fixedly communicated on the steam pipe, a collecting pipe and a straight pipe are fixedly communicated on the transfer box, and the collecting pipe is communicated with the straight pipe. The straight pipe is fixedly communicated with a spiral pipe, the reboiling tank is provided with a supporting assembly used for supporting the transfer box, and a condensation box is arranged above the transfer box. The condensation device is reasonable in design structure, steam passes through a delay path of the spiral pipe before entering a condensation stage by introducing the structural design of the transfer box, the spiral pipe and the condensation box, the contact time and the surface area of the steam and the condensation environment are increased, and therefore the condensation efficiency is improved; the isotope liquid in the steam can effectively flow back, so that the loss of the uncondensed steam is reduced, and the separation purity of the isotope is improved.

The utility model relates to a packaging barrel cleaning device, a recycling system and a battery production system, and the packaging barrel cleaning device comprises a plurality of to-be-cleaned packaging barrels which are sequentially connected in series in the preset direction to form a cleaning channel for a cleaning medium to circulate; the cleaning container is connected with the first packaging barrel in the preset direction and is arranged to supply a cleaning medium to the first packaging barrel; and the first recycling container is connected with the last packaging barrel in the preset direction and is used for collecting the mixed liquid discharged from the last packaging barrel. According to the packaging barrel cleaning device, the cleaning work of the packaging barrel can be efficiently completed, the cleaning efficiency and the cleaning quality of the packaging barrel are improved, the requirements of industrial production are met, in addition, the personal danger caused by residual electrolyte to operators can be reduced, and the safety of the cleaning work of the packaging barrel is improved.

The invention provides a time sequence neural network-based protein chromatographic purification anomaly detection and control method, which relates to the technical field of time sequence neural networks, and comprises the following steps: constructing a separation knowledge graph and mapping chromatographic process data to generate a feature vector, and predicting a separation behavior by using a time sequence neural network model of a bidirectional recursive structure, and then an optimization objective function is established to generate an optimal process parameter combination, and finally actual operation data is fed back to the knowledge graph to realize online optimization. According to the method, the protein purification accuracy can be improved, the abnormal risk can be reduced, and intelligent optimization and self-adaptive adjustment of process parameters can be realized.

The utility model relates to the technical field of concentrating machines, in particular to a polymetallic ore concentrating machine which comprises a first installation frame, a conveying belt, a feeding hopper and a second installation frame, the conveying belt is rotationally arranged in the first installation frame, and the feeding hopper is fixedly connected in the second installation frame. The discharging end of the feeding hopper is arranged above one end of the conveying belt, a magnetic attraction device is installed above the conveying belt, the magnetic attraction device comprises a connecting frame and a first belt, the connecting frame is arranged above the first installing frame, and the first belt is rotationally connected in the connecting frame; a second belt is further rotationally connected into the connecting frame and arranged on one side of the first belt. According to the magnetic attraction device, the magnetic metal ore in the polymetallic ore can be quickly classified and screened out, repeated treatment is not needed, the working time of extracting the magnetic metal ore in the polymetallic ore by equipment is shortened, and meanwhile the separation efficiency and purity of the magnetic metal ore are improved.

The invention relates to a method for extracting vanadium from a solution containing vanadium and chromium and separating the vanadium and the chromium. The method comprises the following steps: S1, adsorbing a feed liquid by using special resin SepliteLSC-2150 for vanadium extraction by the Blue Kiaozhou technology, so as to obtain adsorbed resin; s2, desorbing the adsorbed resin by adopting a sulfuric acid solution and sulfur dioxide to obtain a vanadium desorption solution and vanadium desorbed resin, and then washing the vanadium desorbed resin; and S3, the resin for desorbing vanadium is subjected to desorption treatment through an alkali solution, and a chromium desorption solution is obtained. By means of the method, vanadium can be effectively extracted from the solution containing vanadium and chromium, and effective separation of vanadium and chromium is achieved.

The invention relates to a cotton fiber recovery device suitable for refined cotton crushing equipment, which comprises a plurality of symmetrically arranged corona electrode plates, the outer ends of the plurality of corona electrode plates are fixedly connected with a plurality of uniformly distributed needle-shaped electrodes, the bottom ends of the corona electrode plates are fixedly connected with a flow guide cover, and the bottom end of the flow guide cover is fixedly connected with a separation basket. The outer end of the separation basket is fixedly connected with a plurality of rectangular grooves, the rectangular grooves are symmetrically arranged relative to the center face of the separation basket, the inner wall of the separation basket is fixedly connected with a first pole plate pair, a second pole plate pair, a third pole plate pair and a fourth pole plate pair, large cotton fiber particles are removed through primary separation, and the total amount of particles entering the electrostatic separator is reduced; the load of the electrostatic separator is reduced, the efficiency and the purity of treating small particles are improved, the electric charge quantity of cotton fiber particles and dust particles is increased through a corona discharge area, the cotton fiber particles and the dust particles are larger in stress in an electric field and more easily attracted to corresponding polar plates, the separation purity is improved, and the function of recycling the small-particle-size cotton fiber particles is achieved.

The invention relates to a spraying system for removing sediments in a pre-condenser in naphthalene-process phthalic anhydride production, and relates to the technical field of naphthalene-process phthalic anhydride production, the spraying system comprises a pre-condenser body, a gas-liquid separation device, a crude phthalic anhydride intermediate tank and a switching condenser, the surface of the pre-condenser body is provided with a first conveying pipe, and the first conveying pipe is provided with a second conveying pipe; a filtering assembly is arranged on the surface of the first conveying pipe, a connecting pipe is arranged at the other end of the first conveying pipe, the other end of the connecting pipe is arranged on the surface of the gas-liquid separation device, and a liquid phase pipe and a gas phase pipe are arranged on the surface of the gas-liquid separation device; by integrating the pre-condenser body, the gas-liquid separation device, the crude phthalic anhydride intermediate tank and the switching condenser, a complete gas-liquid separation and circulating spraying system is constructed, the efficiency and stability of the crude phthalic anhydride condensation process can be remarkably improved through the synergistic effect of all the components, and gas and liquid can be efficiently separated and impurities can be intercepted through the combination of the gas-liquid separation device and the filtering assembly.

The utility model relates to the technical field of extraction separation, especially, it is a kind of continuous extraction tower system, including extraction tower, pipeline mixer, metering pump and liquid storage tank;Its characterized in that: the extraction tower includes base and tower body, the tower body is sequentially arranged as clarification section, extraction separation section, settling section from top to bottom and is connected between each section by flange;The bottom of settling section is connected with base, the base one side is equipped with heavy phase outlet, and the other side is equipped with exhaust port;The extraction separation section is equipped with filler layer and is equipped with mixed phase import and separation observation sight glass in side wall;The clarification section top is equipped with clarification vent and is equipped with light phase outlet and circular observation sight glass in side surface;The application adopts pipeline mixer accurate control two-phase mixing and emulsification degree, flange connection combined tower body is combined with grading treatment mode, and segmented maintenance is convenient and efficient;Pipeline mixer and the synergistic effect of permeable structured packing, inhibit intermediate layer, improve mass transfer separation efficiency.