23results about How to "Achieve purification" patented technology

This utility model discloses a comprehensive treatment system for zinc-containing waste generated in viscose fiber production, belonging to the field of waste treatment in viscose fiber production. The system includes a reaction tank, filter press, pretreatment device, filter, ion exchange resin column, and acid bath preparation tank, ensuring a comprehensive treatment pathway for zinc-containing waste. This facilitates the mixing of highly acidic, high-salt zinc-containing wastewater with zinc-containing sludge. The strong acidity of the wastewater allows for the acid leaching of zinc sulfide and zinc hydroxide in the sludge, simultaneously obtaining a zinc sulfate solution and recovering sulfate to prepare sodium sulfate and sulfuric acid. This reduces the salinity of the wastewater, thereby decreasing the amount of reagents used in treating zinc-containing wastewater, mitigating scaling risks, and reducing the load on subsequent biochemical systems.

The utility model discloses a kind of refining machine oil agent circulation systems for fiber production involve fiber production technical field, including refiner, oil agent circulation tank and membrane filtration device, the bottom of the refiner is provided with liquid collecting tank, and the circulating liquid of liquid collecting tank is connected with oil agent circulation tank, and oil agent circulation tank is connected with membrane filtration device and oiling device respectively, and the circulating liquid of oil agent outlet of membrane filtration device is connected with oil agent circulation tank, the refining machine oil agent circulation system for fiber production is also provided with external processor, liquid level transmitter is arranged in the oil agent circulation tank, and oil agent circulation pump is arranged in the liquid outlet of oil agent circulation tank, and solenoid valve I is arranged in the inlet of membrane filtration device;By optimizing oil agent process, improve fiber oiling rate uniformity, make fiber physical property more stable, product strength and elongation rate variation coefficient reduce, significantly improve product quality.Product quality improvement helps company to develop high-end market, improve product added value, enhance market competitiveness.

The utility model discloses a kind of devices for treating heavy metal pollutants in soil using electroosmosis technology, it is related to the technical field of soil pollution control and repair, and it includes: electroosmosis system, the electroosmosis system includes electrode plate and electrode tube inserted into the soil layer of the region to be treated, multiple electrode plates, multiple electrode tube are respectively arranged into row with interval, multiple rows of electrode plates, multiple rows of electrode tube are alternately arranged with interval between them;Liquid injection system and pumping system, the surface of the region to be treated is sequentially laid with woven geotextile and sealing membrane above infusion pipeline and drainage pipeline.This device of the utility model is cooperated by liquid injection system, electroosmosis system, pumping system, and heavy metal pollutants in soil can be quickly and effectively removed, so that soil purification is realized in a short time.

This invention discloses a purification method for producing molybdenum-99 in a reactor using uranyl nitrate solution as nuclear fuel, relating to the field of radioisotope production technology. The method involves first adding an oxidant to the crude molybdenum-99 product solution produced by the solution reactor, oxidizing the crude molybdenum-99 product to MoO4. 2‑ The solution is then evaporated to dryness; a digestion solution is added to the evaporation residue to dissolve the impurities; a dissolving solution is added to the digested solid to dissolve the solid, which is then evaporated to dryness; finally, an alkaline solution is added to the evaporated solid to dissolve it, yielding a molybdenum-99 product solution that meets pharmacopoeia requirements. Compared to traditional methods for purifying molybdenum, this invention does not introduce new impurities, has a low heating temperature, low energy loss, is easy to operate in a hot chamber, and has a high impurity removal rate.

The utility model discloses an automobile air conditioner air outlet structure relates to the technical field of automobile parts, including the air pipe, and the air outlet grid of air pipe air outlet end installation, air pipe air outlet end is equipped with the magnetic attraction connecting piece for the detachable air outlet grid, the support is installed in the air pipe, the support inner plug has the activated carbon honeycomb board for adsorbing air peculiar smell and the non -woven filter board for filtering air, and the non -woven filter board sets up in activated carbon honeycomb board's air outlet end, the groove on activated carbon honeycomb board installs the liquid storage bottle for storing air air fragrance liquid, the air duct adjusting part of rotatable is arranged in the air pipe, the air outlet grid is connected with the air pipe air outlet end through the magnetic attraction connecting piece, realizes quick dismounting with the magnetic attraction principle, compared with traditional buckle or screw fixed mode, it is more simple and convenient to operate, and the cleaning and maintenance efficiency of air outlet grid has been improved greatly, and the use cost of user has been reduced.

This application relates to the field of gas refining production, specifically disclosing a refining process for high-purity electronic-grade ammonia, comprising the following steps: S1, pretreatment: the raw material liquid ammonia is sequentially vaporized, filtered, and adsorbed to obtain crude ammonia; S2, ultrafiltration: the crude ammonia obtained in step S1 is ultrafiltered under conditions of pressure 0.4-0.8 MPa, temperature 25-45℃, and flow rate 1.5-3.5 m / s to obtain high-purity ammonia; S3, distillation and condensation liquefaction: the high-purity ammonia obtained in step S2 is sequentially distilled and condensed to obtain electronic-grade ammonia with a purity of 5N. The refining process of this application simultaneously meets the requirements of high purity, low cost, and high efficiency, improves the removal efficiency of trace impurities, and can obtain electronic-grade ammonia with a purity of 5N, solving the problems of insufficient purity, high impurity content, and high production costs in existing ammonia refining processes.

This invention discloses a method for purifying toluene and its application. The method includes: catalytic conversion of toluene using a porous metal catalyst in an acidic environment below 60°C; and then mixing the converted liquid with an alkaline solution for separation to obtain purified toluene. This method converts non-aromatic hydrocarbons and C8 / C9 aromatic hydrocarbons in toluene into smaller molecules or acidic substances, which are then removed by alkaline washing. When toluene is used in nitration reactions, it reduces the content of fatty acids and benzoic acids during the nitration process, preventing non-aromatic hydrocarbons and C8 / C9 aromatic hydrocarbons from converting into carboxylic acid emulsion impurities during nitration, thus reducing the risk of emulsification in the nitration reaction.

The invention discloses a hot galvanizing method for an extra-high voltage transmission tower steel part, which belongs to the field of hot galvanizing and comprises the steps of hanging materials, pickling with hydrochloric acid to remove rust, cleaning with water, assisting in plating with a solvent, drying, purifying zinc liquid, hot-dip galvanizing and cooling, the zinc liquid purification step comprises slag removal pretreatment, zinc liquid temperature regulation and control, purification agent preparation, purification agent caging and liquid feeding, moving reaction for iron removal and scum removal, and the purification agent comprises industrial-grade metal aluminum wires and water-containing gas substances. The purifying agent is prepared from industrial-grade metal aluminum wires and water-containing gas production substances, wrapped by high-temperature-resistant glass wool cloth into a cluster, loaded into a cage frame made of titanium alloy round steel bars and reciprocatingly moved in the length direction of a zinc pot, so that iron-containing impurities in molten zinc fully react with the purifying agent in the cage frame, and a gray vermicular flocculent reaction product is generated; and then the dross is fished out, so that the purification of iron impurities in the zinc liquid is realized, the liquidity of the zinc liquid is improved, and the adhesive force of a zinc coating on a steel substrate is improved.

This invention relates to the field of bio-based oil refining technology, and proposes an industrial-grade refining apparatus for mixed oils. The apparatus includes a mixing cylinder equipped with a stirring assembly and a wall-scraping auxiliary mechanism, and a drive mechanism at the top to drive the stirring assembly in a three-dimensional composite lifting motion. A disc centrifuge is located directly below the mixing cylinder, with a guide pipe fixed at its top, communicating with the bottom of the mixing cylinder. The bottom of the guide pipe has symmetrically arranged spiral guide channels and horizontal discharge ports. A disc assembly is coaxially arranged inside the disc centrifuge, with the gap between adjacent discs decreasing sequentially from bottom to top. This technical solution solves the problems in existing degumming processes, such as the large speed difference between long pipe conveying and centrifugal feeding leading to secondary breakage of fragile bio-phospholipid flocs, easy pipe blockage due to cooling, easy blockage at the bottom of traditional evenly spaced discs (for coarse separation), low purity at the top (for fine separation), and low mixing efficiency of traditional stirring structures.

This invention discloses a spherical powder of tantalum-tungsten alloy and its preparation method and additive manufacturing method, belonging to the field of refractory metal material preparation technology. The preparation method includes: subjecting a homogeneous tantalum-tungsten alloy ingot to a three-stage hydrogenation treatment, sequentially holding at 0.01~0.04 MPa and 300~500℃ for 1~3 h, at 0.04~0.08 MPa and 900~1000℃ for 0.5~1 h, and at 0.02~0.05 MPa and 300~400℃ for 0.5~1.5 h. This segmented hydrogenation process controls the diffusion behavior of hydrogen in the alloy, achieving controlled embrittlement and avoiding over-hydrogenation. Further, multi-cycle crushing and dynamic sieving based on the target particle size range are performed to obtain hydride precursor powder, significantly reducing ineffective fine powder and improving the yield and production efficiency of the plasma spheroidization process. The resulting tantalum-tungsten alloy spherical powder has a sphericity of not less than 99%, an oxygen content of not more than 150 ppm, and a concentrated particle size distribution. It is suitable for additive manufacturing processes such as laser selective melting and electron beam selective melting, providing a reliable raw material for the forming of high-performance tantalum-tungsten alloy components.

This invention discloses an enhanced leaching and purification method for tellurium in arsenic-antimony-tellurium alkaline slag, belonging to the field of solid waste resource utilization and rare and dispersed metal extraction in non-ferrous metal smelting. Using high-arsenic-antimony-tellurium alkaline slag as raw material, a mixed leaching method with tellurium-directed leaching agents is employed. Through the synergistic effect of "strong alkali complexation-reduction solubilization-high salt stable solubility," efficient tellurium leaching and directional retention of arsenic and antimony are achieved, resulting in a low-impurity tellurium-containing solution after solid-liquid separation. After pH adjustment, a one-step tellurium purification agent is added for reduction purification, directly preparing high-grade elemental tellurium. This invention overcomes the limitations of traditional step-by-step processes, with high tellurium recovery as the core technical objective, achieving efficient separation and one-step purification of tellurium from arsenic and antimony: tellurium leaching rate ≥95%, reduction purification rate ≥98%, total recovery rate ≥93%, product grade ≥99.5%; arsenic and antimony leaching rates ≤3.5% and ≤5.0%, respectively. The leaching residue and purified liquid can be recycled. The process is short, the reagent consumption is low, it is compatible with conventional equipment, and it is suitable for industrial promotion.

This invention relates to the field of fluorescence lifetime imaging, and discloses a wide-field fluorescence lifetime imaging system and method based on a streak camera. The system includes an excitation source, a wide-field excitation module, a synchronous detection module, and a synchronous matching module. The wide-field excitation module is positioned along the transmission path of a pulsed laser. The synchronous detection module includes a collection and beam splitting component, a reference camera, and a streak camera component. The input end of the collection and beam splitting component receives the fluorescence beam emitted by the sample, and the output end of the component splits the fluorescence beam into a first detection optical path and a second detection optical path. The reference camera is positioned in the first detection optical path, and the streak camera component is positioned in the second detection optical path. The synchronous matching module is electrically connected to the excitation source, the reference camera, and the streak camera component, respectively. This invention avoids the complex optical encoding scheme and resulting fluorescence photon loss problems of traditional DMD systems, and eliminates the need for complex reconstruction algorithms, thus improving imaging efficiency.

This utility model relates to the field of filtration device technology, and in particular to a filtration device for reducing volatile organic compounds (VOCs). It includes a housing with an inlet, an outlet, and a purge recovery port. A filter unit is detachably installed inside the housing. An auxiliary piping system includes a main pipeline, a nitrogen branch, and a vacuum branch. The output end of the main pipeline is connected to the purge recovery port, and the nitrogen and vacuum branches are respectively connected to the input ends of the main pipeline. Through a unique auxiliary piping system design, after filtration, nitrogen is introduced through the nitrogen branch to thoroughly mix with the residual VOCs in the filter unit, breaking the adsorption balance of VOCs on the filter surface. Subsequently, the vacuum branch removes the mixed gas, forcibly expelling the desorbed gas, forming a "pressurized-negative pressure" pulse cleaning process. This deeply removes residual VOCs from the pores inside the filter device, significantly reducing the amount of residual VOCs within the device and meeting environmental protection requirements.

The utility model discloses a kind of hydrogen and oxygen equipment of electrolytic water preparation, apply in electrolytic water equipment field, including electrolytic tank, the sealing cover is arranged on the electrolytic tank, the inside of the electrolytic tank is provided with anode and cathode, the power connector is arranged on the anode and the cathode, the gathering mechanism is arranged on the anode and cathode, the centrifugal purification mechanism is arranged on the gathering mechanism by setting electrolytic tank, sealing cover, anode, cathode, power connector, gathering mechanism and centrifugal purification mechanism, when using, sealing cover can be sealed to the electrolytic tank Processing, avoid the gas produced to escape, then add electrolytic liquid into electrolytic tank, the power connector on cathode and anode is connected with external power supply respectively, electrolysis is carried out to electrolytic water, cathode produces hydrogen, anode produces oxygen, then the gas produced can be collected by gathering mechanism, directly transmitted into centrifugal purification mechanism, remove impurities in gas by centrifugal purification mechanism.

This invention provides a circulating dust-proof blower device for drying sesame seeds, relating to the field of sesame seed drying technology. It includes a housing and a blower assembly. The blower assembly includes a bracket connected to one side of the housing, on which a first drive motor is mounted. In this invention, the first drive motor on the bracket drives an impeller inside a volute to rotate, generating airflow. The airflow is sent into the housing through a connecting pipe and a connecting block at the volute's outlet. A heat source can be delivered into the housing via the blower assembly. In the material-turning assembly, sesame seeds are fed into a material cylinder inside the housing via a hopper. Hot air flows along a spiral guide groove on the side wall of the material cylinder, causing the hot air to circulate within the housing. A third drive motor drives a first synchronous wheel to rotate, which in turn drives a second synchronous wheel via a synchronous belt, causing the support frame to rotate and the material-turning plate to rotate, turning the sesame seeds so that they are in full contact with the hot air, achieving uniform drying and improving drying efficiency and cleanliness.

The present application relates to the field of purification, disclose a kind of adsorbent gradation method and purification method of hydrocarbon raw material for hydrocarbon raw material purification.The method includes renewable adsorbent and non-renewable adsorbent arranged in turn along the direction of flow, non-renewable adsorbent includes molecular sieve, binder, Salen ligand and transition metal element, based on the total amount of non-renewable adsorbent, the content of molecular sieve is 30-80wt%, the content of binder is 5-60wt%, the content of Salen ligand is 1-8wt%, the content of transition metal element is 1-8wt%, wherein, the Salen ligand has the structure as described in the following formula (1);R1 And R2 Each is independently selected from H, halogen, amino or C1-C5 Alkyl.The gradation method provided by the application can remove mercaptan and sulfide impurities in raw material simultaneously by using two kinds of adsorbents in combination,

The utility model discloses a kind of water sprinkling cart dust collection integrated efficient filter devices, comprising: barrel, its side surface is arranged import, first outlet, the side surface of import, first outlet is tangent with the inner wall of barrel;Filter structure, it is assembled in one end of barrel, inside along airflow direction is sequentially arranged primary efficiency filter layer, high efficiency filter layer, the air inlet end of filter structure is provided with encapsulation net plate, its air outlet end is docked second outlet;Impurity collection box, it is assembled outside barrel, the dirt collection cavity in it is communicated first outlet.The utility model can solve the problem that existing water sprinkling cart dust collection uses, because of the impurity such as leaf, stone block existing on road surface, it is easy to cause filter structure to be impacted greatly and produce damage, and it can block filter hole and affect filtration efficiency.

This invention discloses a seawater treatment system for aquatic organism seedling and larval cultivation based on a natural ecological cycle. The system includes a natural sedimentation tank, a secondary sedimentation algae cultivation tank, a multi-stage dark sedimentation tank, a primary sand filter, a secondary sand filter, and a water storage tank connected to the end of the secondary sand filter. A pump is installed to connect to a water storage tower. A seawater concentration device and an ultrafiltration device are also included between the water storage tower and the aquatic organism seedling tank. The secondary sedimentation algae cultivation tank can be directly connected to a juvenile shellfish rearing tank for direct use in juvenile shellfish cultivation. The sand filter also features a backwashing design for easy recycling. The seawater processed through the primary and secondary sand filters, concentration device, and ultrafiltration device can be used for larval cultivation of aquatic organisms. This water treatment system, through its multi-stage structural design and combined with natural environmental control of light and shading, avoids the drawbacks of chemical and biological purification and the shortcomings of simple physical sand filtration in a natural and ecological way. This ensures a large-scale supply of water for aquatic organism seedling and shellfish cultivation, meeting the diverse needs of large industrial areas.

The utility model relates to the technical field of dirt separator, disclose a kind of intelligent brush formula multi-filter cartridge dirt separator, including dirt tank, the top of dirt tank is connected with top cover by a plurality of bolts fixedly, the bottom of dirt tank is connected with bottom cover by a plurality of bolts fixedly, the water inlet connecting pipe is opened in the side of dirt tank, the water outlet connecting pipe is opened in the other side of dirt tank, the bottom of bottom cover is fixedly connected with blow-off pipe, the dirt tank inner wall is provided with filter assembly, the filter assembly includes brush formula filter screen, filter screen and multiple filter cartridges, the brush formula filter screen, filter screen and multiple filter cartridges are located inside the dirt tank. In the utility model, by being sequentially arranged brush formula filter screen, filter screen and multiple parallel filter cartridges in dirt tank, three-stage progressive filtration structure is constituted, and cooperate by motor-driven cleaning brush and high-pressure waterway component of automatic cleaning part, depth purification and online self-cleaning dual effect to water body are reached.

The application screens a group of DNA aptamers capable of specifically recognizing mCRP through SELEX technology. Compared with RNA aptamers, the DNA aptamers have the advantages of low cost, in-vivo stability and difficulty in degradation, and are more suitable for in-vivo application. The DNA aptamers capable of specifically recognizing mCRP can be used for capturing mCRP from a complex system, realizing detection, purification, in-vivo imaging and diagnosis, drug delivery and the like of mCRP. Further, the DNA aptamers in the group can block the pathological function of mCRP, and are further used for treating CRP-related diseases.