190 results about "Ceramic membrane" patented technology

Disclosed in the present invention is a ceramization composite process applied to a metal substrate, comprising the following steps: 1) performing micro-arc oxidation treatment on a metal substrate; and 2) performing post-treatment on the metal substrate obtained in step 1). In the present invention, micro-arc oxidation treatment is performed on the metal substrate, which may result in micro-arc oxidation ceramic films of different colors on the surface of the metal substrate, the colors are uniform, and the appearance is beautiful; and then post-treatment is performed on the metal substrate to form protection for the micro-arc oxidation ceramic films and fill micro-pores of the micro-arc oxidation ceramic films, such that micro-film pores on the surface of the metal substrate undergone the micro-arc oxidation treatment are sealed, thereby greatly improving the stain resistance, weatherability, and surface hardness of the metal substrate, preventing film layer pulverization or cracking after the metal substrate is impacted, and solving the problems of poor stain resistance caused by the presence of micro-pores on surfaces, poor weatherability and insufficient surface hardness caused by open and unsealed film pores, and high hardness and brittleness of micro-arc oxidation films of existing micro-arc oxidation processes.

This utility model discloses a silicon carbide ceramic membrane gas separation device, specifically relating to the technical field of ceramic membrane gas separation devices. It includes a mounting base and a switching structure. A first filter assembly and a second filter assembly are fixedly mounted on the top of the mounting base. The switching structure is fixedly connected inside the first and second filter assemblies, which have identical structures. This silicon carbide ceramic membrane gas separation device, through the cooperation of the first adjusting rod, the second adjusting rod, and the mounting bracket, allows the extension of the telescopic rod to close the first and third gate valves and open the second and fourth gate valves. In summary, this device can flexibly switch the working states of the first and second filter assemblies. By alternating between the first and second filter assemblies, the device will not stop operating when maintaining one set of filter assemblies.

The application discloses a ceramic membrane electrolytic cell and a ceramic membrane electrolytic device. It relates to the technical field of electrolytic cells. The ceramic membrane electrolytic cell comprises a single cell, a hole is formed in the single cell, and a reaction zone is arranged in the middle of the hole along the hole axis direction, and non-reaction zones are arranged close to both ends of the reaction zone; a positive electrode layer is arranged on the first surface of the single cell and corresponds to the position of the reaction zone; a first connecting piece comprises a first connecting piece body and a first heating element, and both are arranged on the side of the positive electrode layer; the first surface of the first connecting piece body forms a first gas flow channel, and the first surface of the first connecting piece body is in abutment with the positive electrode layer; the first heating element is connected with the first connecting piece body, the first heating element generates heat when electrified, and the reaction zone is heated; and a sealing piece is arranged in the non-reaction zone of the single cell, and the sealing piece has a second gas flow channel and is in sealed communication with the hole. The application reduces the sealing difficulty and gas leakage rate of the high-temperature operation electrolytic cell and improves the operation pressure of the ceramic membrane electrolytic cell.

This invention discloses a process for producing brown sugar with high ferrous content, belonging to the field of food processing technology. Addressing the problem of low ferrous content and limited iron supplementation effect in traditional brown sugar, this process uses fresh sugarcane juice as raw material. After pressing and extraction, and coarse filtration, an edible ferrous source is added at a specific temperature range and stirred until homogenized. Impurities are removed through multi-stage ceramic membrane ultrafiltration. Vacuum concentration combined with boiling is used to control the stability of moisture and ferrous content. Finally, crystallization and cooling are performed to obtain the finished product. This invention significantly increases the ferrous content in brown sugar by optimizing the timing of ferrous addition and processing parameters, while retaining the natural flavor and nutrients of sugarcane. The product is free of sediment, highly safe, suitable for industrial production, and meets consumers' nutritional iron supplementation needs.

The utility model discloses a kind of medicine liquid extraction concentration unit, it is related to medicine liquid production technical field, mainly solve the problem of increasing cost caused by the multiple pump delivery of existing equipment. Unit includes extraction tank, output pump, concentration evaporator, ceramic membrane filter, high tank, resin purification unit and receiving tank. The import of output pump is connected with extraction tank export, and export is communicated with three paths by valve branch, first path, into concentration evaporator by ceramic membrane filter, and natural circulation concentrated medicine liquid is formed by heater, and solvent is liquefied recovery by condensing recovery ware after steam vaporization recovery;Second path, medicine liquid input high tank, after purification by gravity into resin purification unit, into receiving tank again, and by output pump back to concentration path;Third path, after medicine liquid input alcohol precipitation tank and precipitate impurities, by output pump and back to concentration path. Through single pump multiway shunt design, integration concentration, resin purification and alcohol precipitation process, reduce the number of pump, significantly reduce equipment cost.

The utility model relates to dust collection technical field discloses superfine dust collection device with ceramic filter membrane, including work bin, the left side top of work bin is fixedly connected with the connecting pipe a, the right side of connecting pipe a is detachably connected with work cavity air inlet pipe, the bottom outside slide of work cavity air inlet pipe is connected with the filter tube fixed plate, the inside fixed connection of filter tube fixed plate has the ceramic membrane filter tube, the inside fixed connection of work bin has the net support plate, the bottom of work bin is equipped with the collection subassembly, the left side of work bin is equipped with power component. In the utility model, through the cooperation of work cavity internal structure and the increase remaining gas filter bin, superfine dust gas can pass through ceramic membrane filter tube more evenly, thereby realizes the improvement collection efficiency, separates superfine dust and other harmful material's effect while collecting superfine dust.

This invention discloses a method for producing high-quality sodium caseinate, belonging to the field of food engineering technology. The method includes enzymatic modification, low-temperature alkali conversion, ceramic membrane microfiltration, ultrafiltration desalting and concentration, homogenized spray drying, and fluidized bed agglomeration granulation. Enzymatic modification uses a complex enzyme of endopeptide and phosphatase to hydrolyze bitter peptides and phytic acid at 45–55℃; low-temperature alkali conversion involves gradient alkali addition at 15–25℃ to avoid thermal damage and Maillard reactions; ultrafiltration employs equal-volume dialysis, with water added until the conductivity is ≤500 μS / cm, desalting and removing small-molecule bitterness; finally, agglomeration granulation is achieved by fluidized bed spraying with 0.1%–0.5% lecithin. This invention completely abandons the acid precipitation-alkali dissolution process, coupling enzymatic modification with all-physical membrane separation and purification to produce sodium caseinate that is white in color, pure in flavor, dissolves rapidly in cold water in ≤30 seconds, has an ash content ≤3.5%, reduces wastewater discharge by more than 90%, is environmentally friendly, and suitable for large-scale production.

This invention discloses a method for preparing protein powder through low-temperature separation, comprising the following steps: S1: raw material pretreatment; S2: low-temperature defatting; S3: multi-stage low-temperature membrane separation; S4: low-temperature concentration; S5: freeze-drying; S6: post-treatment. This invention uses animal-derived whey as raw material, sequentially performing raw material pretreatment, low-temperature defatting, multi-stage low-temperature membrane separation, low-temperature concentration, freeze-drying, and post-treatment. The temperature is controlled within the range of 0–10°C throughout the process. By optimizing the pretreatment process to remove impurities and heat-sensitive interfering substances, and employing a combination of gradient-pore-size ceramic membranes and ultrafiltration membranes, efficient separation and purification of proteins are achieved. Combined with vacuum low-temperature concentration and freeze-drying technology, the active components of whey protein are preserved to the maximum extent. This invention solves the problems of large protein activity loss, low purity, high energy consumption, and easy introduction of chemical contaminants in existing preparation methods.

The application provides an extraction and purification method for synthesizing phytosphingosine through whole-cell fermentation, which comprises the following steps: performing enzymolysis, ceramic membrane permeation and concentration on a fermentation liquor to obtain a bacteria slurry liquor; adding a strong base to the bacteria slurry liquor and performing primary hydrolysis under heating to obtain a hydrolysis liquor; adjusting the pH value of the hydrolysis liquor to 7-8, and then performing extraction, centrifugation, concentration, purification, purification, filtration and drying to obtain high-purity N-acetyl phytosphingosine; adding the high-purity N-acetyl phytosphingosine into an ethanol aqueous solution, adding a strong base into the ethanol aqueous solution, and performing secondary hydrolysis under heating to obtain a phytosphingosine reaction liquor; and performing crystallization, recrystallization, centrifugation and drying on the phytosphingosine reaction liquor to obtain the phytosphingosine. The extraction and purification method releases the cell contents by using lysozyme, removes water-soluble impurities through a ceramic membrane, and retains tetraacetyl phytosphingosine phytosphingosine, and is efficient and fast.

The present application belongs to the field of environmental functional materials and water treatment technology, and aims to provide a preparation method of ceramic membrane based on endogenous pore forming and catalysis of sludge containing algae. The method comprises the following steps: taking dewatered sludge of water supply plant in algae outbreak period of water source, drying, ball milling and sieving to obtain sludge powder; soaking and washing after using organic acid with complexing ability as heavy metal removal agent, pre-carbonization treatment, dry pressing into embryo, sintering into membrane sheet; primary activation treatment in weak oxidizing strong acid, washing and heating treatment for secondary activation to obtain ultrafiltration ceramic membrane product. The method is simple in operation steps, easy to implement and green and environmental protection; the prepared ceramic membrane has good separation performance and high mechanical strength, can catalyze oxidizing agent commonly used in water treatment while filtering, and free radicals are generated by decomposition to degrade organic matter; or catalyze common cleaning agent sodium hypochlorite during membrane cleaning to generate free radicals to strengthen the cleaning effect.

The application provides a cold coke water treatment process and system. The cold coke water treatment process comprises the following steps: step one: after being collected by a coke storage pool, the cold coke water is filtered by a flat ceramic membrane to obtain concentrated coke water and dilute coke water, and the concentrated coke water is returned to the coke storage pool; step two: after being stored by a cold coke water tank, the dilute coke water is divided into dilute coke water I and dilute coke water II, the dilute coke water I is sequentially treated by a first-stage electro-catalytic oxidation unit, a second-stage electro-catalytic oxidation unit and a reverse osmosis unit to obtain purified water; and the dilute coke water II is used as cold coke water makeup water and recycled; the first-stage electro-catalytic oxidation unit is provided with an electro-catalytic oxidation reaction tank, the electro-catalytic oxidation reaction tank is provided with a cathode and an anode, the cathode is a titanium electrode, and the anode is a titanium-based metal oxide coating electrode; the second-stage electro-catalytic oxidation unit is provided with an electro-catalytic oxidation reaction tank, the electro-catalytic oxidation reaction tank is provided with a cathode and an anode, the cathode is a titanium electrode, and the anode is a boron-doped diamond electrode. The treatment process has good treatment effect and is environmentally friendly and economical.

This invention discloses a remote real-time control system for ceramic membrane magnetic filtration based on the Internet of Things (IoT). The system comprises a sensing layer, an edge computing layer, a cloud control layer, a user interaction layer, and a modular access unit. The sensing layer, centered on a gradient field permanent magnet magnetic filtration module, integrates a Hall sensor array, an electromagnetic flowmeter, and a temperature sensor to collect key data such as magnetic saturation index, syrup flow rate, and liquid temperature in real time, achieving comprehensive perception of the ferromagnetic impurity capture status and raw material parameters. The gradient field permanent magnet magnetic filtration module is connected in series with the syrup delivery pipeline and includes a multi-stage detachable magnetic rod assembly, a Hall sensor array, a servo rotating sleeve, and a slag discharge channel. Compared to traditional iron removal equipment, this IoT-based remote real-time control system for ceramic membrane magnetic filtration is specifically designed for the characteristics of high-sugar, high-acid liquids. The gradient field magnetic circuit improves the capture efficiency, stably controlling the iron content below 0.3 ppm, effectively preventing product blackening, sedimentation, and a metallic taste.

The utility model relates to wastewater treatment technical field, specifically disclose flat plate type ceramic membrane wastewater filtration treatment device, and the water treatment box body rear wall top end is equipped with the water inlet joint, and the front wall bottom end is equipped with the water outlet joint and is equipped with the baffle in the cavity corresponding to the water outlet joint upside department, ceramic membrane subassembly includes with the frame body of water treatment box body top surface sliding sleeve joint, inlay in the ceramic membrane board of frame body cavity front and back end and the bottom cylinder of sleeve joint in frame body bottom surface middle part, and the bottom cylinder top surface is equipped with the top hole no. 1, the water connection spare includes fixed sleeve joint in the baffle and with the bottom sleeve of bottom cylinder, fixed in the fixed ring of water passing cylinder inner chamber bottom, and the spring is supported in the fixed ring top surface and is fixed in the plug body of spring top end, and the water passing cylinder top surface is equipped with the top hole no. 2 with the plug body top sleeve joint in the middle, and the top rod subassembly top screw thread sleeve joint in frame body top surface and bottom end with top hole no. 1, two sliding sleeve joint. Better solved the problem that ceramic membrane wastewater treatment device is inconvenient to the efficient disassembly, installation of ceramic membrane subassembly.

This application relates to the field of transformer technology, specifically to a chip transformer and power module, including a ceramic substrate; the ceramic substrate includes a plurality of stacked ceramic diaphragms; conductive posts are provided on the ceramic diaphragms, the conductive posts extending perpendicularly to the ceramic diaphragms; helical coils are provided on the surface of the ceramic diaphragms, and the ends of adjacent helical coils are connected through the conductive posts; at least two helical coils are connected through the conductive posts to form a coil winding. The embodiments of this application can significantly increase the number of turns in the winding by using planar helical coils, effectively improving the inductance value and enhancing the coupling coefficient between the primary and secondary coils while achieving a miniaturized integrated design.

The utility model relates to sewage treatment technical field, a kind of coal chemical industry wastewater ceramic flat sheet membrane water reuse system, including ceramic membrane pool, and ceramic flat sheet membrane is inside in ceramic membrane pool;Water production pool is connected to the filtration side of ceramic flat sheet membrane by water production pipe;Water production pump is set on water production pipe;Backwash pump input is connected with the water production pool by pipeline, and the output end of backwash pump is connected the sewage side of ceramic flat sheet membrane;Ceramic membrane pool bottom is equipped with sludge discharge pipeline, and sludge discharge pump is arranged on the sludge discharge pipeline.This technology handles coal chemical industry wastewater effect is good, and effluent quality water quantity is stable.

This invention discloses a synergistic modification method for improving the CO2 decomposition performance of ceramic membrane reactors. By preparing a dense membrane substrate containing fluorite and B-site-doped perovskite phases, and constructing an A-site-defect perovskite porous coating on the CO2 feed side, the synergistic regulation of substrate stabilization and surface activation is achieved. The B-site-doped membrane substrate provides a stable transmembrane transport channel for oxygen species generated during CO2 decomposition, while the A-site-defect coating enhances the generation process of oxygen species on the CO2 feed side. Together, they reduce the resistance to surface reactions and oxygen migration on the CO2 side, enabling the membrane reactor to maintain long-term stable operation even at high CO2 decomposition rates. This invention provides an effective substrate-coating synergistic modification method for improving the CO2 decomposition rate and long-term operational stability of membrane reactors.

The utility model discloses a tunnel kiln car for pyrolyzing large-size fan blades, which comprises a kiln car main body, a plurality of groups of steel clamping mechanisms are arranged on the kiln car main body, the kiln car main body comprises a single-layer steel frame, a double-layer composite heat-insulating layer is paved on the single-layer steel frame, a refractory slab is paved on the double-layer composite heat-insulating layer, and the refractory slab is arranged on the single-layer steel frame. According to the device, an adjusting screw rod is rotated by rotating a knob, the adjusting screw rod rotates to drive an adjusting block to move up and down, the adjusting block drives a clamping arm to move up and down, the clamping arm is clamped on the adjusting screw rod, the clamping arm is clamped on the adjusting screw rod, the clamping arm is clamped on the clamping arm, and the clamping arm is clamped on the clamping arm. Therefore, fan blades with different sizes can be clamped.

This invention discloses a method for refining and desalting belladonna fluid extract, relating to the field of traditional Chinese medicine pharmaceuticals. Belladonna grass is pulverized through a 24-mesh sieve to form coarse powder. The powder is percolated using ethanol as a solvent to obtain a primary belladonna extract. The ethanol is recovered from the primary extract, and the extract is cooled to room temperature. Chlorophyll is removed by separation using a ceramic membrane. The extract is then filtered, and the filtrate is concentrated using an organic nanofiltration membrane to remove salts. The membrane filtrate is further concentrated under reduced pressure to a thick paste. Seven times the volume of ethanol is added and stirred until homogeneous. The mixture is allowed to stand until complete precipitation. The supernatant is collected, and the ethanol is recovered and concentrated to a thick paste. Based on the content determined in the thick paste, an appropriate amount of 85% ethanol is added, and the mixture is diluted with water to prepare a finished belladonna fluid extract product conforming to pharmacopoeia standards. This method is stable and reliable, avoids high-temperature degradation of the active ingredients, effectively removes impurities from the belladonna fluid extract, and prevents salt precipitation in the finished product. This ensures its efficacy and medication safety, and has broad market application prospects.

The application discloses a kind of frozen forming high porosity ceramic membrane support and preparation method thereof, it is related to ceramic membrane technical field, slurry raw material is placed into ball mill, ball milling is passed 100 mesh screen, obtain slurry, again slurry is introduced into prepared polytetrafluoroethylene mould, again mould is directly placed into liquid nitrogen pool and frozen forming, then demolding, obtain wet blank, again wet blank is placed into vacuum environment, vacuum freeze-drying, obtain dry blank, then dry blank is placed into kiln, high-temperature sintering, then natural cooling, ceramic membrane support is obtained.The application ceramic membrane support preparation is only 4 process steps, whole process is simple, and raw material component is simple, it is not necessary to add a large number of binder, pore-forming agent to increase porosity, 1-5min can be completed forming, greatly reduce forming time, greatly shorten the sintering cycle of whole support, simultaneously using vacuum freeze-drying, utilize water sublimation drying, the position where water is located can form interstice, greatly improve the porosity of support.

This invention discloses a laboratory-grade ceramic membrane pressure filtration device, comprising a pressure ceramic membrane filtration unit, a pressure pump, a feed container, a valve, and a dialysate container. This invention uses an inorganic ceramic membrane as the filter medium, which is resistant to acids and alkalis, resistant to organic solvents, has a wide range of applications, high strength, and high operating pressure. It maintains high membrane integrity during installation, disassembly, and filtration, and offers high operating flux and high recovery rate. It can withstand both high-pressure steam sterilization and chemical sterilization. The sealing method is simpler than that of tubular ceramic membranes, and the dead volume is significantly smaller, requiring relatively less feed solution, making it suitable for laboratory operating environments.

This invention discloses a Co-Mn LDH@N-MWCNT nano-confined catalytic ceramic membrane, its preparation method, and its application, belonging to the field of wastewater purification and advanced oxidation technology. This invention combines Co-Mn LDH and N-MWCNT to form a composite catalyst, which is then loaded onto a porous ceramic membrane, thereby constructing a highly efficient catalytic-separation system. The metal ions in Co-Mn LDH provide abundant catalytic active centers, synergistically activating oxidants to generate free radicals; N-MWCNTs serve as a conductive framework, accelerating electron transport and promoting catalytic cycling, while their nitrogen-doped sites enhance hydrophilicity and dispersibility. Finally, the composite catalyst forms a nano-confined environment within the pores of the porous ceramic membrane, which can efficiently concentrate pollutants and reactants, prolonging their contact time with the active sites, thus achieving in-situ efficient degradation of pollutants during membrane filtration.

This invention relates to the field of microbial culture medium raw material technology, specifically to a method for preparing white fish peptone. This invention effectively removes odor precursors and pigment impurities through the synergistic effect of raw material brine rinsing, low-temperature quick-freezing, and a specially formulated compound sedimentation agent. The resulting product is light in color, almost odorless, and has excellent water solubility, significantly improving its application adaptability. This invention employs a dual-enzyme stepwise hydrolysis process using alkaline and neutral proteases, combined with low-temperature concentration and drying technology throughout the process, avoiding heat damage and Maillard reactions. The product has high total nitrogen and amino nitrogen content, a uniform amino acid profile, and retains the nutritional activity and bioavailability of white fish protein to the greatest extent. The unique compound sedimentation technology of this invention significantly improves solid-liquid separation efficiency, effectively protects the subsequent ceramic membrane filtration system, reduces the risk of membrane clogging and maintenance costs, and, combined with a gradient vacuum falling membrane concentration process, achieves low-energy, high-yield continuous production.

The present application belongs to the technical field of food production and processing, and particularly relates to a method for preparing pineapple fruit powder by boiling granulation, which comprises the following steps: adding γ-cyclodextrin into pineapple juice, stirring and dissolving to obtain an inclusion liquid; subjecting the inclusion liquid to ceramic membrane microfiltration to obtain a dialysate; subjecting the dialysate to vacuum decompression concentration and filtration to obtain a concentrated liquid; weighing auxiliary materials according to the total solid mass of the concentrated liquid, and dividing the auxiliary materials into first auxiliary materials and second auxiliary materials; placing the first auxiliary materials into a boiling granulator, spraying the concentrated liquid to obtain shaped particles; preparing an embedding solution from the second auxiliary materials, and performing spray embedding, drying and sieving on the shaped particles to obtain pineapple fruit powder. The pineapple fruit powder prepared by the method has high solubility, good fluidity, low hygroscopicity, high nutrient retention rate, low processing cost and long product shelf life.

The present application relates to the technical field of natural product extraction, and particularly discloses a method for extracting betaine from sugar beet molasses. The method uses sugar beet molasses as raw material, and realizes high-yield and high-purity extraction of betaine through steps of optimizing dilution pretreatment, ceramic membrane microfiltration-nanofiltration membrane grading purification, continuous chromatography separation, low-temperature crystallization drying and the like. The core innovation is that specific-aperture ceramic membranes (80 nm) and nanofiltration membranes (200 Da) are combined, macromolecular impurities and salts are effectively removed under conditions of accurately controlled temperature, pressure and dialysis water addition, and precise separation is carried out in combination with a multi-column continuous chromatography system. The present application significantly improves the extraction efficiency and product purity of betaine, and the whole process has less wastewater discharge, thereby meeting the requirements of environmental protection and efficient manufacturing.

The application discloses a method for producing feed by using glutamic acid isoelectric mother liquor, and belongs to the technical field of industrial fermentation. The technical scheme of the application comprises the following steps: first, the glutamic acid isoelectric mother liquor is subjected to ceramic membrane and ultrafiltration membrane treatment to obtain membrane filtrate and concentrated solution; the concentrated solution is subjected to plate and frame filtration and drying to obtain bacterial protein; the obtained membrane filtrate is subjected to electrodialysis treatment to obtain concentrated water and dilute water; the concentrated water is subjected to evaporation crystallization and solid-liquid separation to obtain ammonium sulfate crystals; and the dilute water is subjected to concentration and drying to obtain feed protein, so that the method for producing feed from the glutamic acid isoelectric mother liquor is realized. The treatment method can increase the yield of feed, improve the yield of ammonium sulfate and bacterial protein, and has great economic and environmental benefits.

This invention relates to an automatic plate-mounting and blank-mounting device for flat ceramic film attaching plates, comprising a plate-mounting conveying module, a plate-mounting transfer module, a plate-mounting pushing module, a plate-mounting receiving module, a plate-mounting conveying module, and a blank-mounting module connected in sequence, for forming an automatic plate-mounting and blank-mounting production line. By automating the plate-mounting process, this invention brings significant and substantial benefits in multiple aspects, including reducing labor costs, optimizing resource allocation, improving working conditions, reducing labor intensity, improving placement accuracy, ensuring product quality, and increasing production efficiency. It solves the core defects of existing technologies and has significant application value and economic and technical benefits.