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33results about "Filtration separation" patented technology

Ionic solvents used in ionic polymer transducers, sensors and actuators

InactiveUS20050103706A1Stable responseSolve the stability is not highMaterial nanotechnologySemi-permeable membranesIonomerTransducer
Ionic liquids are incorporated into transducers, actuators or sensors which employ the ionic polymer membranes. The ionic liquids have superior electrochemical stability, low viscosity and low vapor pressure. The transducers, actuators and sensors which utilize ionic polymer membranes solvated with ionic liquids have long term air stability. Superior results are achieved when a conductive powder and ionomer mixture is applied to the ionic polymer membrane to form the electrodes during or after the ionic liquid is imbibed into the ionic polymer membrane.
Owner:VIRGINIA TECH INTPROP INC +1

Reverse osmosis water filtering system

ActiveUS20100116724A1Reduce backpressureReduce back pressureServomotor componentsTreatment involving filtrationEngineeringMechanical engineering
A valve assembly having a first valve defining an inlet connected to the inlet supply and an outlet connected to the concentrate chamber, a second valve defining an inlet connected to the permeate chamber and an outlet connected to the faucet, and a third valve defining an outlet connected to drain, a port connected to the concentrate chamber, and an inlet connected to the inlet supply. The port is selectively in fluid communication with the third valve outlet and inlet. When the faucet opens, the first valve opens, the second valve has permeate flowing, and the third valve opens a flowpath between the third valve port and the inlet due to pressure dropping in the second valve. When the faucet closes, the first valve closes and the third valve opens another flowpath between the third valve port and outlet due to pressure created in the second valve.
Owner:WATTS REGULATOR

Using asymmetrical flow focusing to detect and enumerate magnetic particles in microscale flow systems with embedded magnetic-field sensors

InactiveUS20090001024A1Water/sewage treatment by magnetic/electric fieldsFiltration separationMagnetic markerAnalyte
Improved detection and enumeration of magnetic particles in a flowing stream by enveloping the particle-containing sample stream with buffer streams from the sides and from the top, thus individualizing the particles and navigating the sample stream as a single-file flow into the proximity of sensors embedded underneath the flow channel. At the same time, larger physical size of the flow channel alleviates problems such as channel clogging. Magnetic particles can represent any analyte of interest, such as biomolecules or bacterial cells, which are labeled with magnetic labels.
Owner:IOWA STATE UNIV RES FOUND INC

Binchotan-added activated carbon filter material for air conditioners and preparation method thereof

InactiveCN104324699AGood health effectImprove adsorption efficiencyOther chemical processesFiltration separationIonActivated carbon
The invention discloses a Binchotan-added activated carbon filter material for air conditioners. The Binchotan-added activated carbon filter material is characterized by being prepared from the following raw materials, by weight, 135-145 parts of cocoanut active charcoal, 10-15 parts of Binchotan, 2-3 parts of potassium hydroxide, 3-4 parts of brown sugar, 12-14 parts of zeolite powder, 7-9 parts of meerschaum powder, 3-5 parts of seaweed meal, 1-2 parts of sodium alginate, 1-2 parts of D-sodium erythorbate, 4-6 parts of sodium chloride, 4-6 parts of an adsorbent-aid and a proper amount of water. Apart from the addition of components such as zeolite powder, meerschaum powder and the like that enhance the adsorbing effect, the component Binchotan is also added, enhancing adsorptivity of activated carbon, releasing negative ions, blocking electromagnetic wave and appropriately adjusting indoor humidity. The component Binchotan has an excellent health-care effect. In cooperation of the adsorbent-aid, adsorption efficiency is enhanced, and indoor harmful gases are removed rapidly to make the air indoors fresh and pleasant. The preparation process is simple, and the activated carbon filter material has long service life and can repeatedly be used.
Owner:MINGGUANG JIAYI ELECTRIC CONTROL TECH

Method for making coated filter cloth through wet process

InactiveCN103952914AHigh porosityHigh Solids RetentionFibre treatmentFiltration separationPorosityYarn
The invention discloses a method for making a coated filter cloth through a wet process. A technical scheme adopted in the invention is characterized in that the method comprises the following steps: calendering the coated surface of a filter cloth, coating or dip-coating the calendered surface of the filter cloth with a coating agent of an organic polymer material having the advantages of high porosity, smooth surface, good elasticity and good wear resistance through a coating or dipping device, immersing the coating agent coated filter cloth in a coagulation bath, controlling and adjusting the temperature of the coagulation bath and the detention time in order to realize required porosity and film layer thickness, washing with water, and drying. The obtained coated filter cloth changes deep filtration to surface layer filtration, so a filtered material does not aggregate in the apertures between yarns of the filter cloth, the obstruction of the filtered material in the apertures of the filter cloth is avoided, the possibility of the obstruction of the filter cloth by the filtered material is greatly reduced, the filtering efficiency is improved, the energy consumption of a filtering system is reduced, the filter cloth obstruction is reduced, the service life of the filter cloth is prolonged, and the production cost is reduced.
Owner:刘冠利

High-efficiency filter sheets for air microfiltration membrane filters

InactiveCN108031209AHigh mechanical strengthIncreased mechanical toughnessDispersed particle filtrationFiltration separationPolyvinyl chlorideFilter effect
The present invention relates to a high-efficiency filter sheet for air microfiltration membrane filters. The high-efficiency filter sheet comprises a polyvinyl chloride fiber layer and a polytetrafluoroethylene fiber layer, wherein fiber filaments in the polyvinyl chloride fiber layer and the polytetrafluoroethylene fiber layer are respectively in a unidirectional arrangement, and an included angle between the fiber filaments in the polyvinyl chloride fiber layer and the fiber filaments in the polytetrafluoroethylene fiber layer is 60-65 DEG. According to the high-efficiency filter sheet, a double layer combination of the polyvinyl chloride fiber layer and the polytetrafluoroethylene fiber layer is used, and a specific angle between the fiber filaments is set, so that windage resistance and filtering effect of the filter sheet are improved; the introduced polytetrafluoroethylene fiber layer has superhigh mechanical strength and structural toughness, so that vibration caused by strongwind can be effectively suppressed, and airflow in a dust collection chamber of a vacuum cleaner is stabilized; and a filling layer is additively arranged, so that the filtering effect of the filter sheet is further improved.
Owner:SUZHOU QINGRUI AIR SYST

Multifunctional filter press

The invention provides a multifunctional filter press, and belongs to the technical field of sewage treatment equipment. By the aid of the multifunctional filter press, the problem that filter platesof existing filter presses are inconvenient to change can be solved. The multifunctional filter press comprises a front seat, a rear seat, guide rods, a plurality of filter plates, a push plate mechanism, movable seats, first oil cylinders, piston rods, ejecting plates, dustproof sleeves, a tightening mechanism, a compressing device, a drainage mechanism and a controller. The multifunctional filter press has the advantages that the push plate mechanism and the tightening mechanism can be simultaneously controlled by the controller, so that the filter plates required to be changed can be liftedup from the multiple filter plates by the push plate mechanism, and hang ropes can be conveniently fastened by people; every two adjacent filter plates can be prevented from being collided with eachother, and accordingly the filter plates can be protected; the controller is arranged on the front seat, the movable seats, the first oil cylinders, the tightening mechanism and the compressing deviceare electrically connected to the controller, accordingly, automation of the multifunctional filter press can be embodied, and operation can be facilitated.
Owner:浙江精鼎电力设备有限公司

Squeezing safety and automatic alarm device of diaphragm filter press

PendingCN111298490AImprove the safety requirements of automatic control operationEasy to useAlarmsElectric transmission signalling systemsText displayAutomatic control
The invention discloses a squeezing safety and automatic alarm device of a diaphragm filter press. According to the device, a PLC (Programmable Logic Controller) is arranged to automatically control the operation; a digital display pressure controller is arranged on an oil cylinder body of a hydraulic system; an intelligent pressure transmitter is arranged on a diaphragm squeezing water pipeline;the digital display pressure controller and the intelligent pressure transmitter are connected with the PLC; a pressure switch is connected with the intelligent pressure transmitter; a text display device is connected with the PLC; a buzzer alarm is connected with the PLC; a squeezing pump switch is connected with the intelligent pressure transmitter; a hydraulic pump switch is connected with thedigital display pressure controller; the digital display pressure controller is installed on the oil cylinder body of the hydraulic system; and the digital display pressure controller is provided witha pressure contact lower limit, a pressure contact upper limit and a pressure contact ultimate upper limit. According to the invention, the use safety of the whole equipment of the diaphragm filter press is ensured, a burst accident is avoided during squeezing of a diaphragm filter plate, the safety of personnel on a working site is ensured, and the economic benefit is improved.
Owner:JINGJIN ENVIRONMENTAL PROTECTION INC

Filter paper with high filtering efficiency, and preparation method thereof

InactiveCN103437249AEvenly distributedFacilitate cross-linkingSynthetic cellulose/non-cellulose material pulp/paperFiltration separationFiberFiltration
The invention relates to filter paper with high filtering efficiency, and a preparation method thereof. The filter paper with high filtering efficiency disclosed by the invention is composed of the following raw materials by weight: 50-60 parts of jute pulp, 45-50 parts of wood pulp, 20-25 parts of polystyrene fibers, 3-5 parts of sodium carboxymethyl cellulose, 3-4 parts of a nano carbon powder, 1-2 parts of feldspar powder, 1-2 parts of alum powder, 1-2 parts of 4,4'-diphenylmethane diisocyanate, 2-3 parts of diethylene triamine, 2-3 parts of polyamide wax micropowder, 0.8-1 part of bis(P,P-bis-ethylhexyl diphosphato)ethanediolato titanate, 0.4-0.6 part of an antioxidant DSTP, 0.5-0.6 part of sodium persulfate, 2-3 parts of ethylene glycol, 6-7 parts of rosin, 15-20 parts of absolute ethyl alcohol, 3-4 parts of nano diatomite, 0.8-1 part of polyoxyethylene octyphenyl ether, 0.3-0.4 part of Gamma-(2,3-epoxypropoxy)propyl trimethoxysilane and a proper amount of water. The filter paper produced by the invention has high filtration precision, high filtration efficiency, small air resistance and strong pollutant-holding capacity, and is environment-friendly.
Owner:BENGBU PIONEER FILTER

Lubricating oil filtering device

ActiveCN110242737AQuick installationQuick releaseGear lubrication/coolingFiltration separationInlet channelEngineering
The invention discloses a lubricating oil filtering device. The lubricating oil filtering device comprises a first shell, a second shell, connecting assemblies and a one-way valve, wherein the first shell is provided with an inner cavity, the inner cavity is provided with a filter element, the second shell is detachably connected to the first shell, an oil inlet channel and an oil outlet channel are formed in the second shell, one end of the oil inlet channel communicates with the position, where the filter element is not arranged, in the inner cavity, one end of the oil outlet channel communicates with the position, where the filter element is arranged, in the inner cavity, the other end of the oil inlet channel and the other end of the oil outlet channel correspondingly communicate with the outside, the connecting assemblies are correspondingly arranged in the first shell and the second shell and are configured to be detachably connected with the first shell and the second shell, the one-way valve is arranged at one port, communicating with the inner cavity, of the oil inlet channel, the one-way flow direction of the one-way valve is from the outside to the inner cavity, and the connecting assemblies communicate with the first shell and the second shell so that a lubricating oil filter can be rapidly assembled and disassembled.
Owner:AECC HUNAN AVIATION POWERPLANT RES INST

Automatic water-stopping filter element holder

PendingCN109107263ATo achieve the purpose of automatic water stopImprove replacement efficiencyFiltration separationInlet valveEngineering
The invention discloses an automatic water-stopping filter element holder. The automatic water-stopping filter element holder comprises a water inlet and a connection cavity, wherein the connection cavity comprises a first inner wall and a second inner wall which are in an annular shape as well as a third inner wall which is connected with one ends of the first inner wall and second inner wall ina sealing manner, the first inner wall and the second inner wall are respectively provided with a first projection and a second projection in the circumferential direction, the connection cavity is provided with a sealing ring and an elastic connection member, one end of the elastic connection member urges the third inner wall, the other end of the elastic connection member urges the upper end ofthe sealing ring, the sealing ring is located above a space between the first projection and the second projection, and one end of a filter element body urges the lower end of the sealing ring. The filter element holder is additionally provided with the sealing structure, after the filter element body is separated from the filter element holder, under the pushing of the elastic connection member,the sealing ring is pressed between the first projection and the second projection, so that the communication between the filter element body and a water inlet is disconnected, an automatic water stopping aim is achieved, the water inlet valve is unnecessary to close when the filter element body is replaced, the replacing efficiency is improved, and the application effect is improved.
Owner:广州共盈信息科技有限公司

Filter press for preparing nano cerium oxide

InactiveCN113082801AGuarantee the effect of crushing and dispersingMeet needsFiltration separationGrain treatmentsElectric machinePhysical chemistry
The invention discloses a filter press for preparing nano cerium oxide. The filter press comprises a rack and a filter press body installed on the rack. A crushing frame is fixed between the inner walls of the rack, the bottom of the crushing frame is connected with a hopper, and a crushing assembly driven by a motor is arranged in the crushing frame. A centrifugal disc is in transmission connection with the crushing assembly, crushing rods which are uniformly arranged are connected to the outer side of the centrifugal disc, and centrifugal rods which are arranged at equal intervals are fixed to the outer side of the bottom surface of the centrifugal disc. A material receiving hopper is restrained below the rack. According to the device, on the basis of a traditional filter press, materials subjected to filter pressing are further crushed, the crushing and dispersing effects can be guaranteed through crushing, and then the recycled raw materials can better meet the actual requirements.
Owner:SHENZHEN GEMINI MICROELECTRONICS CO LTD

Filter core-replaceable filter

A filter core-replaceable filter comprises a filter core, a gap is arranged between the filter core and each of the sidewall of a shell and an intermediate disk, gapes are connected to form a filtrate cavity, the upper portion of the shell is provided with a filtrate outlet, the filtrate outlet is connected with the filtrate cavity, the filter core is fixed on the intermediate disk of the filter, the intermediate disk is sleeved on a main shaft, the main shaft is connected with a drive device, the drive device is arranged at the top of the shell of the filter, the lower portion of the shell is provided with a filtrate inlet, the filtrate inlet is connected with the filter core, a dirt outlet is arranged at the top of the shell and is connected with a solenoid valve, a position of the intermediate disk provided with the filter core is provided with a groove, the end portion of the filter core is provided with a projection, the shape and the size of the projection match with the shape and the size of the groove, and the projection is in spiral connection with the groove through a screw thread. When the filter core is replaced or cleaned, the filter core is spirally unscrewed, and a replacing filter core is screwed or the cleaned filter core is afresh screwed, so a complex step of integral replacement is omitted, and the risk of damages of the replacement or cleaning of the filter core to the filter core is reduced.
Owner:SICHUAN FINE PURIFICATION EQUIP

Permeable filtering sound insulation material and manufacturing method thereof, tray, decorative brick and filtering equipment

PendingCN111746064ALow costAbrasion resistance is not affectedCovering/liningsDomestic upholsteryEpoxyCompression molding
The invention relates to a permeable filtering sound insulation material and a manufacturing method, a tray, a decorative brick and filtering equipment. The permeable filtering sound insulation material comprises a surface layer, a middle layer and a base layer which are sequentially arranged from top to bottom, wherein the surface layer, the middle layer and the base layer comprise a mixture of quartz particles and epoxy resin glue; the particle size of the material particles of the surface layer is 250 meshes or above, the particle size of the material particles of the middle layer is 100-200 meshes, and the particle size of the material particles of the base layer is 100 meshes or below; and the permeable filtering sound insulation material is formed by compression molding. According tothe permeable filtering sound insulation material, the structure of the surface layer cannot be damaged due to a large particle size of the base layer, so that the surface layer can be manufactured to be very thin; meanwhile, due to the middle layer, the reflection frequency of sound waves in the material is increased, and the sound insulation performance is improved; in addition, attractiveness,abrasion resistance, compressive strength and water permeability are not affected, and the manufacturing cost is reduced.
Owner:河南英煌匠新科技有限公司

Anti-blockage backflush double-valve device

The invention discloses an anti-blockage backflush double-valve device which comprises a front-end valve, a rear-end valve, a first filter screen, a second filter screen, a water inlet, a water outlet, a first side pipe, a second side pipe, a first small valve and a second small valve, wherein the front-end valve and the rear-end valve are arranged in series; the water inlet is arranged at the left end of the front-end valve; the water outlet is arranged at the right end of the rear-end valve; the first filter screen is arranged at the middle of a pipe on the left side of the rear-end valve; a second filter screen is arranged on a pipe on the right side of the rear-end valve; one end of the first side pipe is connected with the side wall at the left end of the front-end valve; the other end of the first side pipe is connected with the rear-end valve; one end of the second side pipe is connected onto a pipe on the right side of the front-end valve; the other end of the second side pipe is connected with the rear-end valve; the second side pipe is arranged on the left side of the first filter screen; the first small valve is arranged on the first side pipe; and the second small valve is arranged on the second side pipe. The anti-blockage backflush double-valve device disclosed by the invention has the advantages that the structure is simple, the use is convenient, the backflush effect is good, the blockage and the loss are reduced, and the conveying efficiency is improved.
Owner:天津市盟特电气仪表配件制造股份有限公司
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