36results about How to "Filterable" patented technology

The invention relates to a sludge breaking and centrifugal filtration integrated machine, and aims to provide a sludge breaking and centrifugal filtration integrated machine which is low in running cost, good in sealing property and small in occupied area. The sludge breaking and centrifugal filtration integrated machine comprises a base, a transmission device, a sludge breaking device and a centrifugal filtration device, wherein the transmission device comprises a belt pulley, a belt, an inner shaft and an outer shaft, wherein the inner shaft and the outer shaft are concentric and are respectively connected with the motor through the belt pulley and the belt, the sludge breaking device comprises a breaking cavity fixedly connected with the base through a bracket, fixed discs arranged on the inner wall of the breaking cavity and movable discs arranged on the inner shaft, the fixed discs and the movable discs are distributed in a staggered manner along the axial direction, the centrifugal filtration device comprises a filtering cavity shell, a water collecting channel with a water outlet pipe at the bottom, an elastic scraper, an annular baffle, and a filtering rotating hub arranged on the outer shaft, the bottom of the filtering cavity shell is fixedly connected with the outer side wall of the water collecting channel, a slag outlet hole is arranged at the lower part of the side wall of the filtering cavity shell, the annular baffle is arranged at the outer side of the upper edge of the filtering rotating hub, and the lower end of the elastic scraper is fixed on the inner shaft through a scraper rack.

The invention relates to a melt-blowing filtering material with a three-dimensional twisted fiber structure and a preparation method of the melt-blowing filtering material. The melt-blowing filteringmaterial with the three-dimensional twisted fiber structure comprises a coarse filtering part, a supporting part and a fine filtering part which are sequentially connected by needling from top to bottom. The preparation method of the melt-blowing filtering material comprises the following steps: firstly, preparing the coarse filtering part; secondly, preparing the supporting part; thirdly, preparing the fine filtering part; fourthly, sequentially arranging the coarse filtering part, the supporting part and the fine filtering part from top to bottom to form a filtering material with a sandwichstructure; fifthly, needling the filtering material with the sandwich structure at the needling depth of 5 to 7mm and the needling density of 390 to 480 needles / cm<2>; connecting all parts of the filtering material to obtain the melt-blowing filtering material with the three-dimensional twisted fiber structure. The melt-blowing filtering material disclosed by the invention has the advantages thatspecial surface area of the inner part of a fiber network is increased, and mechanical properties are excellent; the preparation method has the advantages of simplicity, convenience, low cost, high production efficiency, better filtering performance and small reluctivity change.

The invention discloses a high-temperature-resistant antibacterial nanofiber non-woven fabric and a preparation method and application thereof. The non-woven fabric is prepared from 51%-98.5% by weight of butene polymer, 0.05%-5% by weight of a bacteriostatic agent, 0.05%-5% by weight of an anti-aging agent, 0.05%-5% by weight of an antistatic agent, 0%-2% by weight of a coloring agent, 0%-2% by weight of a surfactant and 0% to 30% by weight of an inorganic filler. The non-woven fabric is formed by disorderly arranging multiple layers of superfine fibers with the diameter of 100-1000 nm, the thickness of the non-woven fabric is 5 microns to 1 centimeter, the non-woven fabric has inhibiting and killing effects on fungi, bacteria and viruses, the sterilization rate reaches 99.99%, and the virus inhibition rate reaches 99.99%. The non-woven fabric is prepared by adopting melt electrostatic spinning.

The invention provides a method for producing water-purification ceramic particles by using kieselguhr. The method comprises the processes of mixing, producing mud, producing particles, drying mud particles and roasting the mud particles. The ceramic particles produced by the method are transparent in texture and has the adsorbability; meanwhile, adhesion and propagation of water-purification microorganisms are facilitated; the ceramic particles also has the filtration performance. The method is suitable for production of the water-purification ceramic particles.

The environment protecting bioceramics is used in the cultivation of plant and the purification of water, has pores and water absorption greater than 18%, and contains: SiO2 65-70- wt%, Al2O3 10-20 wt%, Fe2O3 and FeO 1.5-3 wt%, CaCo3 3-10 wt% and small amount of C. It is produced with the material including common red clay 10-25 wt%, low-viscosity soil 15-30 wt%, dolomite 5-15 wt%, carbon powder 5-30 wt% and viscous soil 18-24 wt%. Its production process includes successive six steps of preparing material, ball milling, sieving slurry, squeezing to dewater, forming and roasting. The present invention has the functions of maintaining tidy environment, eliminating bad smell, purifying water, etc. and the product has easily controlled color and high water absorption.

The invention relates to a sensor device (10), especially for a motor vehicle, said device comprising an optical waveguide body (12), a first receiver (22), and a second receiver (22a). Said receivers detect the light radiation, especially sun radiation, radiating through the optical waveguide body (12), and emit signals to a control means (30). Said control means (30) are used to control a device (32) influencing the air-conditioning.

The invention discloses a composite nano antibacterial air filtering membrane which comprises an aggregate base layer, a sticking and spraying layer and a nanofiber membrane layer which are sequentially arranged, the aggregate base layer is gum dipping wood pulp paper or polyester non-woven fabric, the sticking and spraying layer is a polyolefin material and is stuck and sprayed on the aggregate base layer, and the nanofiber membrane layer and the aggregate base layer are bonded together through hot pressing of the sticking and spraying layer; the nanofiber membrane layer is of a three-dimensional net-shaped structure which is formed by superfine fibers with the diameter of 300-500nm and is prepared from a high polymer material through an electrostatic spinning process; an antibacterial agent is added into an electrostatic spinning solution used for preparing the nanofiber membrane layer, and the antibacterial agent is added into the electrostatic spinning solution according to the proportion of 0.1%-1%. The composite nano antibacterial air filtering membrane has the performance of efficient filtration and low resistance, has certain antibacterial and bacteriostatic ability, can realize air blowback self-cleaning, can be repeatedly used, is a novel air filter material, and has a wide application prospect.

The invention relates to a method for industrial cultivation of Hericium erinaceus in culture bottles. The method uses the culture bottle as the cultivation containers for industrial cultivation, andit includes the steps of (1) preparing a culture medium, (2) filling the culture bottles with the culture medium, (3) sterilizing the culture bottles, (4) inoculating into the culture bottles, (5) culturing mycelia, (6) inducing to primordium, (7) harvesting for the first time and (8) harvesting for the second time. The method is beneficial to industrialization and mechanization; the growth environment of the Hericium erinaceus is easy to control, and the shapes of the Hericium erinaceus are nearly the same and beautiful.

The invention discloses a method for removing dust and oil from coal-chemical engineering wastewater. The method comprises following steps: (1), dust removing: wastewater enters a water channel through a dust removing water inlet valve and rotates for 360 degrees in the water channel to flow upwards, pressure difference is formed, the wastewater enters a center water distributor through a grid and a dust removing filter material under the action of the pressure difference and then flows out from a dust removing water outlet valve, suspended solids are intercepted by the dust removing filter material, and the dust removing of the wastewater is completed; (2), oil removing: the wastewater after dust removing enters a tank through an oil removing water inlet valve and moves downwards under the action of gravity, lipophilic groups of the filter material absorb dispersed oil drops in the wastewater when the wastewater passes an oil removing particle membrane, oil is enabled to be demulsified on the oil removing particle membrane, a thin film is formed, water after oil removing continuously flows downwards and is discharged from an oil removing water outlet valve, oil molecules are intercepted and accumulated to form oil drops, the enriched oil drops are separated in a large oil drop form and float upwards to the top end of the tank, and oil removing is completed. The invention further discloses a dust and oil removing system implementing the method.

The invention relates to an ecological cultivation system for a sand leaching slope water filtering pond. The system comprises a pond body, a sand leaching slope filtering structure, a water circulation pipeline, a ladder, an artificial road and an ecological ditch, wherein the pond body is provided with a pond bottom face and a pond slope face located on the peripheral side of the pond bottom face, the ladder is led from the pond bottom face to the top end of the pond slope face, the artificial road is located at the upper end of the pond edge slope face, the ecological canal is located on the outer side of the artificial road, and submerged plants and shellfish are arranged at the bottom of the canal; the sand leaching slope filtering structure is arranged at the upper portion of the partial pond slope face; the bottom of the pond body is communicated with the ecological canal through the water circulation pipeline; a controllable water level overflowing structure is arranged at the position, corresponding to the sand leaching filtering structure, of the canal wall of the ecological canal, and the water outlet end of the controllable water level overflowing structure is located above the sand leaching slope filtering structure. The system is suitable for high-density high-yield intensive culture of various feeding fish, culture of high-quality fish with the high oxygen consumption rate, cooperative culture of high-quality carnivorous fish, and culture of various special aquatic livestock, increases the yield of aquatic products, and improves the quality of aquatic products.

The invention discloses dust collection equipment, and discloses an electric dust collection filtering cylinder and a dust collection method thereof. The electric dust collection filtering cylinder comprises a framework and filtering cloth, wherein the filtering cloth has a filtering function; a metal part is arranged inside the framework; the metal part is connected with a power supply cathode; the filtering cloth comprises conductive fiber and is connected with the anode of a power supply. Furthermore, the electric dust collection filtering cylinder has effects of electric dust collection and filtering dust collection, and has characteristics of low resistance and high efficiency, and the problems that fine dust cannot be effectively controlled by using an electric dust collector and energy consumption of a bag dust collection manner capable of filtering fine powder dust is high can be solved. The equipment is simple in structure, low in cost and convenient to repair and mount, applicable to collection and removing of dust and ash of relatively small granules, and has a relatively good ash cleaning effect on fine granules such as PM2.5.

The invention discloses a beverage infusion cage and a preparation method thereof, relating to a utensil for infusing beverage, in particular a device with a cage shape for placing infusion material and a preparation method thereof; a metal part of the beverage infusion cage adopts a filter screen having a specific shape with one or more layers as an ejection die of embedded parts; thermoplastic material is melted into a cage shape in the die and is fused and connected with the metal filter screen to form the beverage infusion cage. The invention is characterized in that a lower cage and an upper cover are made from thermoplastic material and the metal filter screen; the beverage infusion cage has a separation structure of square body with round angle; the separation structure is melted by the metal filter screen supported by enhancing ribs and frames made from the thermoplastic material. The wall thickness of the upper cover and the lower cage are matched with each other; the upper cover is buckled downwards through an articulating chain axially toward the lower cage; the combined surface after buckled is molded by thermoplastic material to form the cage shape; a convex part on the front center of the upper cover is closely buckled with a concave groove on the front center of the lower cage; the beverage infusion cage is used after infusion material is placed, and then is buckled and put into the drink utensil; the beverage infusion cage is characterized by convenient carrying and capability of separating infusion material and beverage.

The invention discloses a multifunctional oil cabinet, which is characterized by comprising a cabinet body as the main part. The cabinet body is rectangular, the top of the cabinet body is provided with an air vent, a partition is mounted at the air vent, a manhole cover is mounted on the lateral side of the cabinet body, a filter device is arranged at an electric heating pipe which is mounted in the cabinet body, a protective jacket is arranged outside the cabinet body provided with the electric heating pipe, and the cabinet body is provided with an oil outlet and an oil backflow port. The multifunctional oil cabinet is reasonable in structure, simple in operation, safety and reliable, and uniform in heating and has functions of filtering and depositing impurities.

The invention relates to an abrasion-resistant lens film coating method. The abrasion-resistant lens film coating method comprises the following steps that (1) a substrate is cleaned and dried; (2) the inner surface and outer surface of the substrate are coated with films correspondingly, specifically, both sides of the substrate are coated with first film layers, second film layers, third film layers, fourth film layers, fifth film layers and sixth film layers correspondingly. Lens is coated with a plurality of film layers, the clarity, anti-dazzling and blue light-proof performance is effectively improved, a good contribution to the visual clarity and authenticity is provided, visual fatigue can be effectively alleviated, and the arrangement of a plurality of layers of silicon dioxide layers and high hardness layers greatly improves the abrasion resistance of the lens.

The invention discloses a composite filtration environment-friendly filter element, comprising a filter element body, an upper end cover hermetically connected to the top of the filter element body and a lower end cover hermetically connected to the bottom of the filter element body; the filter element body comprises a center tube and a filter material arranged on the periphery of the center tube, the filter material includes a first filter material layer having impurity filtering function and a second filter material layer having oil-water separating function, the first filter material layer is arranged around the peripheral wall of the center tube and is peripherally of wavy star structure, and the second filter material layer is arranged around the peripheral wall of the first filter material layer and is of multilayer tangling structure. The composite filtration environment-friendly filter element has efficient filtering capacity and high dust-bearing capacity as well as oil-water separating capacity, has improved dust-bearing capacity and has high filtering efficiency and long service life.

The invention relates to a preparation method of porous scale-inhibiting ceramic and an application thereof, and the preparation method comprises the following steps: mixing hydrogen phosphate, an inorganic porous material, an auxiliary agent, a pore-forming agent and an adhesive, and then sequentially forming and sintering to obtain the porous scale-inhibiting ceramic. According to the preparation method provided by the invention, the prepared scale-inhibiting composite porous ceramic can be directly used for filtering domestic water, meanwhile, efficient control of release of active components in the porous scale-inhibiting ceramic is also realized, phase transformation from an amorphous phase to a high-temperature phase occurs in hydrophosphate in the sintering process, so that the hydrolysis rate of the porous scale-inhibiting ceramic when meeting water is greatly reduced, the the slow release rate of the scale inhibitor of hydrogen phosphate is controlled, meanwhile, stable bonding is formed between the hydrophosphate and the inorganic porous ceramic matrix at the high temperature, even if the hydrophosphate is hydrolyzed, the structure of the hydrophosphate is still kept stable, and the flaky'collapse 'phenomenon cannot occur.

The invention discloses a preparation method of antibacterial preservative paper, which comprises the following steps: soaking a polypropylene non-woven fabric in a natamycin aqueous solution, drying, and then compounding the polypropylene non-woven fabric with the polypropylene non-woven fabric which is not soaked in the natamycin aqueous solution to obtain the antibacterial preservative paper. The volume fraction of natamycin in the natamycin aqueous solution is 0.1-0.3%. The preparation method further comprises the following steps: completely soaking non-woven fabric in the natamycin solution, then leaching the non-woven fabric and drying. The preparation method has the advantages of simplicity and good preservation effect. The invention further discloses the antibacterial preservative paper and a juicy peach preservation method. The antibacterial preservative paper is wrapped on the outer surface of juicy peaches. The juicy peach preservation method has the beneficial effects of preventing moisture loss of juicy peaches, slowing down fruit softening, preventing fruit rot, performing controlled atmosphere preservation and protecting appearance quality.

The invention discloses a fuzzy control method and control system for temperature of a fluidized bed product. The control method comprises the following steps that the product temperature in a fluidized bed is obtained; and according to the deviation e between the product temperature and the preset temperature and the deviation change rate delta e per delta t in the unit time delta t, the openingdegree u of a heating steam proportion regulating valve of a heating unit is subjected to fuzzy control, so that the temperature of the product in the fluidized bed is within a constant range. The invention further discloses a fluidized bed system which comprises a fluidized bed body and a heating unit; the output end of the heating unit is connected with the fluidized bed body; the heating unit comprises a heater and a steam input pipeline, wherein the steam input pipeline is provided with the heating steam proportion regulating valve; and the fluidized bed system further comprises the fuzzycontrol system for the temperature of the fluidized bed product as described above, wherein the control unit in the fuzzy control system for the temperature of the fluidized bed product is separatelyconnected with a temperature acquisition unit and the heating steam proportion regulating valve. The fuzzy control method and control system and the fluidized bed system have the advantages of precisetemperature control, high drying efficiency and the like.

The invention discloses a faucet. The faucet comprises a valve body and a wrench; the valve body is internally provided with a valve core, a water inlet channel of the valve body is connected to a water inlet of the valve core, and a water outlet of the valve core is connected to a valve cavity; a water outlet and a sprinkle water outlet are provided on the front side of the valve cavity, a reversing rod is provided in the valve cavity, and the reversing rod is controlled to realize discharging of the water outlet of the valve body or discharging of the sprinkle water outlet of the valve body.The front side of the valve cavity comprises a water outlet head, a front turning part and a middle filtering part; the front turning part comprises a first front turning part and a second front turning part, the second front turning part drives the water outlet head to rotate 360 degrees along the axis of the first front turning part, and the water outlet head can be linearly pulled out and retracted along the front end of the second front turning part; and the middle filtering part is detachably connected to a front part and a rear part.

The invention relates to a catalytic device. The structure of the catalytic device mainly comprises a reaction kettle, and a filter and an adsorption catalyst are sequentially arranged in the reactionkettle in the flow direction of organic waste gas. The invention further relates to an organic waste gas treatment system which comprises a combustion chamber connected with a gas inlet pipeline divided into a first pipeline and a second pipeline, and the catalytic device arranged between the first pipeline and the second pipeline. The first pipeline is connected with the gas inlet end of the catalytic device and a waste gas source, the second pipeline is connected between the gas outlet end of the catalytic device and the combustion chamber, and a combustion-supporting air inlet is further formed in the second pipeline. According to the technical scheme, the VOC concentration can be prevented from exceeding the danger limit, and potential explosion hazards possibly existing in waste gastreatment are prevented. Meanwhile, the catalyst has filtering and catalyzing functions, so that a self-cleaning function is realized.

The invention discloses a filter material with a sterilization function. The filter material comprises a porous filter matrix, a sterilization layer and a fixing layer, wherein the sterilization layer and the fixing layer are sequentially arranged on the porous surfaces of the filter matrix, and the fixing layer is used for preventing the falling of the sterilization layer; the sterilization layer contains silver particles; and the fixing layer contains chitosan and is of a porous structure. The porous surfaces include porous surfaces in the filter matrix and an outer surface. The filter material with the sterilization function is simple and stable in structure, has excellent filter performance and sterilization performance and a long service life and is not limited by special environments and geographical conditions, and materials are easily available, so that the problems of low sterilization rate and water purification speed, short service life and the like of an existing dispersion type sterilization water purifier can be effectively solved.

The invention discloses a biodegradable inclined form filler, which is used for purification treatment of high-turbidity polluted water and can reduce SS, N, P, COD and the like of the polluted water. In the invention, a filler body is coated with a layer of biomembrane on the outer surface, and the filler body takes the shape of a plate or a tube. The inclined form filler makes up for the deficiency of the existing single filler filter technology, has biodegradability and filtration effect, and assists precipitation; the application of the biodegradable inclined form filler can further promote the development of environment-friendly water treatment technology and lead the water treatment equipment to be more compact and reasonable; and the biodegradable inclined form filler has great economic value and social value.

The invention discloses application of improved PP (polypropylene) to melt-blown fabric, and relates to the technical field of the melt-blown fabric. The application is characterized by comprising steps as follows: 96%-98% of PP resin, 0.1%-0.2% of a free radical initiator, 0.2% of a lubricating agent, 0.01%-0.03% of an antioxidant and 0-1.5% of a compound transparent nucleating agent are preparedand mixed to form a polymer melt; the polymer melt in step 1 is subjected to melt index MFR (melt mass flow rate) testing treatment, and the MFR of the polymer melt is enabled to be 300-1,900 g / 10 min; and then the polymer melt is injected from a feeding port of an extruder, and is conveyed to a melting die head assembly through a melt conveying area of the extruder. According to the applicationof improved PP to the melt-blown fabric, melt extrusion, melt-blowing process and electret treatment are carried out in sequence, the melt index MFR testing method is utilized, so that the prepared melt meets the requirement of a special material for melt-blowing, then by means of treatment with the melt-blowing process, improved PP has 35% filtering performance, the filtering performance can be improved to 95% after the electret treatment, and with adoption of the electret treatment method, under the condition of no change of respiratory resistance, 95% filtering effect is realized and viruses are effectively isolated.

The invention provides vertical type solid-liquid separation equipment. The vertical type solid-liquid separation equipment comprises a filtering cavity, a liquid discharging cavity, a connector connects a positioning device II 171 and a positioning device III 172, wherein a motor 26 rotates forward and backward to drive a main shaft 1 to rotate so that the filtering cavity rotates forward and backward; the filtering cavity rotates to remove liquid, so as to realize solid-liquid centrifugal separation; the connector connects the positioning device II 171 and the positioning device III 172 to realize that the filtering cavity and a machine body 2 are connected to form a static state; the motor 26 drives the main shaft 1 to link a material scraping device 13 to rotate and then solid materials intercepted by an inner wall of the filtering cavity are scraped off. The vertical type solid-liquid separation equipment is scientific and reasonable in structure and is simple, practical and efficient.

The invention discloses an aluminum alloy die-casting waste gas treatment device which comprises a box body and a liquid supplementing box, filter plates are fixed to the inner walls of the two sidesof the box body through screws, air outlet holes distributed at equal intervals are formed in the outer walls of the tops of the filter plates, and a first round hole is formed in the outer wall of one side of the box body; and a water inlet pipe is fixed to the inner wall of the first round hole through screws, a bubble tank is inserted into the outer wall of the bottom of the water inlet pipe, and bubble holes distributed at equal intervals are formed in the outer wall of the periphery of the bubble tank. By arranging the filter plates, the atomizing nozzle, the plasma purifier and the activated carbon filter element, waste gas which does not react with reaction liquid passes through the filter plates, and the filter plates are formed by interweaving an elastic material and a related filter material so that the filter plates have elasticity and filterability and can bulge upwards, on one hand, the flow rate of the waste gas can be reduced, and thus the waste gas can react with the reaction liquid below the filter plates for sufficient time.

The invention discloses a method for testing the water white resistance of real stone paint under the conditions of large temperature difference, wind blowing and low humidity. The method comprises the following steps: (1) preparing paint; (2) treating a substrate; (3) performing plate making; (4) curing, namely curing the cement pressurizing plate in a forced air drying oven with the temperature controlled to be 3-7 DEG C and the humidity controlled to be 30% RH + / -5% RH; (5) soaking in water: vertically or obliquely putting the pressurizing plate into a water tank of 23 + / -2 DEG C, so that part of the region is soaked, and part of the region is not soaked; (6) drying: drying the cement pressurizing plate soaked in water in a forced air drying oven with the temperature controlled to be 3-7 DEG C and the humidity controlled to be 30% RH + / -5% RH; (7) dehumidifying; and (8) judging. According to the invention, the influence of the synergistic effect of the three factors of large temperature difference, low humidity and wind blowing on the water white of the real stone paint is found, the test method carries out maintenance and drying under the conditions of low temperature, low humidity and wind blowing, and the water white resistance of the real stone paint after being influenced by weather in the later period can be further detected.

The invention discloses a preparing method of a phosphorus-removal and antibacterial nanometer fiber membrane. The preparing method specially comprises the steps of S1, preparing a phosphorus adsorbent, wherein a nanometer phosphorus adsorbent is selected and activated or modified to be prepared into a 5-25% solution or suspension; S2, preparing a polymer solution or a modified polymer solution, wherein a polymer or a modified polymer is selected to be prepared into a 8-30% solution; S3, preparing a spinning solution, wherein the solutions prepared in S1 and S2 are mixed in a certain proportion to be prepared into the spinning solution; S4, preparing the phosphorus-removal and antibacterial nanometer fiber membrane, wherein the spinning solution is subjected to electrostatic spinning to beprepared into the phosphorus-removal and antibacterial nanometer fiber membrane. The subsequent treatment technology for the nanometer fiber membrane prepared after electrostatic spinning according to the preparing method is very simple, the adsorbing efficiency of the produced phosphorus-removal and antibacterial nanometer fiber membrane is high, secondary pollution to water cannot be caused, the membrane also has the filtering and antibacterial functions, and the water purification flow is simplified. The preparing method has a great industrialization prospect.

The invention relates to the technical field of plastic products, in particular to a packaging box cleaning device with a cyclic utilization function, which comprises a warm air blower and a plurality of plastic boxes, and further comprises an equipment main body, and an L-shaped hole is formed in the outer side of the equipment main body; an L-shaped bent hole is formed in the upper side of the equipment body, the L-shaped blocking frame can slide on the inner side of the L-shaped bent hole, and an automatic lifting assembly is arranged between the L-shaped blocking frame and the equipment body; and a precise rotating connecting assembly is arranged between the rotating plate and the equipment body, and the lower side of the rotating plate makes contact with one side in the L-shaped hole. Through the arrangement of the warm air blower, the plastic box, the equipment body, the L-shaped hole, the L-shaped blocking frame, the rotating plate, the supporting frame, the water tank, the partition plate, the mounting frame, the drainage pipe, the connecting frame and the hydraulic cylinder A, the automatic cleaning equipment has the functions of efficient cleaning, automatic cleaning, splashing prevention, automatic filtering, cyclic utilization and automatic drying.

The invention discloses a non-woven material composed of composite fibers with a core-spun yarn structure and a preparation method thereof, belonging to the technical field of fiber textile materials. The non-woven material is a non-woven micron fiber, a polydopamine / polyethyleneimine layer coated on the surface of the non-woven micron fiber from inside to outside, and a metal organic framework nanometer for connecting the polydopamine / polyethyleneimine layer. Composite fibers composed of fibers with a core-spun yarn structure are randomly piled up and wound in three-dimensional space; among them, the non-woven micron fiber is the core layer of the core-spun yarn structure, and the metal-organic framework nanofiber is the core-spun yarn-like structure. Structure of the cortex. The nonwoven material has porosity and good flexibility, and has broad application prospects in filtration, adsorption, catalysis and separation.

The invention discloses a composite electrochemical electrode and a preparation method thereof. The composite electrode comprises an electrode substrate and a metal wire mesh modification layer whichis matched with the surface size of the electrode substrate, overlaps the surface of the electrode substrate and is fixedly connected with the electrode substrate into a whole. The preparation methodof the composite electrochemical electrode comprises the following steps: superposing the metal wire mesh on the outer surface of the hollow tubular ceramic membrane of the electrode substrate; preparation process is easy to operate, the process conditions are easy to control, the substrate of the prepared composite electrode and the outer modified composite metal wire mesh layer are firmly combined and are not liable to fall off, the service life of the composite electrode is long, the composite electrode has good conductivity and membrane filtration performance, oil, acidic substances and refractory organic pollutants in wastewater can be efficiently removed, and the composite electrode has important practical value.