46results about "Electrostatic separators" patented technology

The present invention pertains to a system and method for a medical research instrument device consisting of instrument equipment and computer controls. The instrument equipment consists of electronic boards that are used to control and monitor the various actuators and sensors within the instrument. Software is executed on the computer to drive the human interface and control assay methods. The present invention uses dielectrophoresis ("DEP") to preferentially collect specific particles from a biological sample. The type of particles collected are driven by the parameters used to define the electric field used in DEP. The device passes the samples and various reagents across a patterned silicon die capable of creating the electric fields used within the DEP process.

This development corresponds to a system with electronic components for the treatment of high-concentration fluids or solutions or suspensions with solutes, such as wastewater treatment, obtaining valuable elements that are part of a fluid, seawater desalination, among other processes. The system comprises electrodes, tank, solid-state electronic device, a system management algorithm, and an optional solids removal device. This development also intends to protect a fluid or solution treatment procedure that generally involves two joint or sequential stages, whereby a dynamic electro-coagulation takes places first, followed by dynamic electro-flocculation, in order to separate liquids from dissolved solids or solutes from a solution.

The application discloses a voltage calculation method and device of a filtering device, equipment and a storage medium, relates to the technical field of liquid purification, and discloses a voltage calculation method of a filtering device, which comprises the following steps: acquiring the type of impurities in a liquid to be filtered; determining a theoretical voltage required for destroying an electrical double layer of the impurities based on the type; simulating the process of destroying the electrical double layer based on the theoretical voltage, and the aggregation process of separated impurities obtained after the electrical double layer is destroyed, to obtain a predicted minimum voltage required for aggregating the impurities. That is, the use of high-voltage polarization impurities is avoided, the voltage applied to the liquid to be filtered is just enough to aggregate the impurities, the waste of electric power is avoided, and thus the energy consumption is reduced.

To provide a seawater desalination system and a seawater desalination method.SOLUTION: A seawater desalination system 1000 includes a seawater desalination apparatus 70 assembled with, as one unit, a first pretreatment apparatus 1001, a second pretreatment apparatus 1002 provided in a rear flow of the first pretreatment apparatus 1001, a first ion separation apparatus 10A that penetrates cations in the seawater and blocks anions, and a second ion separation apparatus 10B that is provided in the subsequent stage side of the first ion separation apparatus 10A, penetrates anions in the penetration liquid with cations having been penetrated and blocks cations, wherein seawater with a salinity concentration of, e.g., 3.5%, is converted to a salinity concentration of 0.05% to be usable as drinking water.SELECTED DRAWING: Figure 23

The invention relates to the technical field of membrane separation, and discloses a high-protein milk concentration process based on a membrane filtration technology, the process adopts an electric response membrane grafted with an electric response polymer brush on the surface, and an electric control zymogen modified by genetic engineering is added into milk feed liquid to be treated. The zymogen is modified with an electric field responsive anchoring group and an electric signal activated ferrocene protecting group. In the filtering stage, a first electric field is applied to stretch the polymer brush, so that anti-pollution filtering is realized; and in the cleaning stage, switching to a second electric field to enable the polymer brush to shrink and drive the zymogen to be anchored on the surface of the membrane, and applying an activation pulse to trigger the activity of the zymogen so as to degrade pollutants in situ. On the premise of not interrupting production, not adding chemical cleaning agents and not damaging target product protein, milk concentration is efficiently and continuously carried out, and long-term stable high permeation flux is maintained.

The present invention is directed to a system and method for a research instrument device. A method of purifying extracellular vesicles (“EVs”) is disclosed wherein a biological sample including EVs is obtained and applied to a fluidic cell in an array of fluidic cells of a multistage dielectrophoretic (“DEP”) filter system. The DEP filter system comprises a semiconductor array comprising a plurality of electrodes. The DEP filter system is disposed within a fluidics system; wherein the fluidics system is configured to move at least one fluid across the semiconductor array of the DEP filter system.

An exemplary method and system is disclosed that facilitate the integration of multiplexed single-cell impedance cytometry in a high throughput format, which can be deployed upstream from microfluidic sample preparation and / or downstream to microfluidic cell separation. In exemplary method and system may employ impedance-based quantification of cell electrophysiology on the same microfluidic chip (i.e., “on-chip”) to provide distinguishing phenotypic information on the sample, without the need for additional sample handling, preparation or dilution steps as would be needed for other flow cytometry techniques.

Provided are microfluidic devices. The devices comprise a chamber configured to contain a liquid medium. The devices further comprise a substrate comprising: i) a photoconductive layer forming a first wall of the chamber; and ii) first and second electrodes disposed in a planar arrangement within or adjacent to the photoconductive layer. The devices further comprise a microfluidic inlet channel connected to the chamber, and a microfluidic droplet generator connected to the chamber. Systems comprising the microfluidic devices of the present disclosure are also provided. The systems comprise a light pattern generator optically coupled to the photoconductive layer; and a voltage source electrically coupled to the first and second electrodes. Methods of engulfing a particle into a droplet implemented using a system of the present disclosure are also provided.

An electrode apparatus and method remove a polarized molecule in a fluid. In another aspect, a non-uniform electric field is created between an anode and a cathode, the fluid flows within a gap between the cathode and the anode, and the polarized molecule is driven by an electrostatic force to and adsorbed on the anode without experiencing a chemical reaction.

The present disclosure describes a field flow fractionator including (a) a top plate assembly including a top electrically conductive electrode, (b) an o-ring, (c) an electrically insulating frit, (d) an electrically insulating spacer between a bottom surface of the top electrode and the o-ring and the frit, (e) a membrane between the spacer and the frit, and (f) a bottom plate assembly including a bottom electrically conductive electrode.

Provided are a nanoparticle generating device and a desalination device using same, the nanoparticle generating device comprising: a raw material supply unit that provides seawater or wastewater; a gas supply unit that provides a gas; an electrode positioned opposite to the raw material supply unit; a voltage application unit that applies a voltage between a needle portion of the raw material supply unit and the electrode to form an electric field in a space therebetween; and a spray nozzle which has one side connected to the raw material supply unit and the gas supply unit, and which uses the flow of the gas, provided via the gas supply unit, to mix the gas with the seawater or wastewater and spray same outward from the other side. The needle portion of the raw material supply unit is electrically grounded, and the seawater or wastewater charged by the grounding state is provided to the spray nozzle. The seawater or wastewater, charged with electrostatically induced charges, is mixed with the gas to generate an electrostatic explosion and nanoparticulated to produce fine particles, and the produced fine particles are sprayed outward.

A filtration device according to the present invention includes: a filter chamber 3 to which slurry 40 containing a particle and a liquid having different electric charges is supplied through a supply line; a first electrode group 10A or a second electrode group 10B including cathode electrodes 11, 12 or anode electrodes 13, 14 provided on both side surfaces of the filter chamber to face each other and configured to separate the particle 42 and the liquid 41 in the slurry 40 into separated substances by an electric field action; and a first discharge chamber 4 and a second discharge chamber 5 provided for the first electrode group 10A and the second electrode group 10B to face the filter chamber 3 and configured to allow discharging of the separated substances.

The present invention relates to a water purifier provided with a composite filter, and more particularly, to a water purifier provided with a composite filter, which enables the implementation of an additional function using an external treatment member in a process in which raw water passes through a composite filter as the water purifier cannot only receive raw water, discharge second purified water, receive externally treated water, discharge third purified water, but also discharge residential water.

The microfluidic chip and the microfluidic system of the present invention provides a unique integration of a microfluidic chip and a label-free quantification process. The microfluidic chip uses well arrays and dielectrophoresis (DEP) to capture a polarizable agent in a well. Once the polarizable agents have been captured, non-faradaic electrochemical impedance spectroscopy (nF-EIS) measurements can be performed to quantify the polarizable agent.

A system, apparatus and method for magnetically separating a fluid flow passing through a pipeline are provided. A magnetic separator assembly having a plurality of elongate magnetic members is provided. Each magnetic member can have a first end and a second end. A cleaner plate can be provided that can move along the magnetic members. After the magnetic separator assembly is used to collect magnetic particles from a fluid flow in a pipeline, the magnetic separator assembly can be cleaned by sliding the cleaning plate along the magnetic members.

A chemical liquid purification apparatus for semiconductor manufacturing includes a first tank configured to store a chemical liquid for semiconductor manufacturing containing impurities; a first line configured to supply the chemical liquid for semiconductor manufacturing to the first tank; a first electrode and a second electrode provided inside the first tank; a DC power supply connected to each of the first electrode and the second electrode; a second line configured to supply the chemical liquid for semiconductor manufacturing processed in the first tank to outside of the first tank; and a first centrifuge which selectively separates the impurities inside the chemical liquid for semiconductor manufacturing moving along the second line.

The utility model relates to the field of oil product processing equipment, and discloses anti-pollution electrostatic adsorption equipment for industrial oil processing, which comprises a tank body, and a partition plate is fixedly arranged in the tank body and divides the tank body into a filter cavity and an adsorption cavity; a filter screen is fixedly arranged in the filter cavity, and a rotating shaft is vertically arranged in the filter cavity; the bottom end of the rotating shaft is coaxially and rotatably connected with the filter screen, and the top end of the rotating shaft is coaxially and rotatably connected with the tank body; a scraping plate is fixedly arranged on the rotating shaft in the radial direction, and a brush is fixedly arranged at the bottom of the scraping plate and slidably abuts against the filter screen; a push plate is slidably mounted at the bottom of the scraper and is in sliding contact with the filter screen; a transmission assembly is arranged between the scraping plate and the tank body and is in transmission connection with the push plate to drive the push plate to slide in the radial direction of the rotating shaft; a collecting box for collecting particulate mechanical impurities on the filter screen is fixedly arranged on the tank body, and the collecting box is communicated with the filter cavity. The hairbrush can prevent filter holes in the filter screen from being blocked, and meanwhile, the push plate can push particulate mechanical impurities away from the filter screen.

A method of focusing charged particles is disclosed, the method comprising: a) injecting charged particles of at least one substance into a chamber having a major axis; and b) applying an electric field sequence along at least a first portion of the major axis of the chamber, the steps of: b1) applying a first electric field gradient, the first electric field gradient having either a positive or negative sign substantially everywhere within a first region of the major axis and a decreasing magnitude of the electric field along the major axis in the first region of the major axis in a first direction of the major axis; and b2) applying a second electric field gradient, the second electric field gradient having either a positive or negative sign substantially everywhere within the first region of the major axis and a decreasing magnitude of the electric field along the major axis in a second direction of the major axis opposite the first direction.

A system, apparatus and method for magnetically separating a fluid flow passing through a pipeline are provided. A magnetic separator assembly having a plurality of elongate magnetic members is provided. Each magnetic member can have a first end and a second end. A cleaner plate can be provided that can move along the magnetic members. After the magnetic separator assembly is used to collect magnetic particles from a fluid flow in a pipeline, the magnetic separator assembly can be cleaned by sliding the cleaning plate along the magnetic members.

The application relates to a low-energy-consumption solid-removing method and system for catalytic cracking slurry, and relates to the field of catalytic cracking slurry treatment. The catalytic cracking slurry which is heat-exchanged and does not add dilution solvent is directly subjected to electric field electrostatic separation treatment, the slurry after the electrostatic separation treatment is subjected to filtering and solid-removing treatment, and the purification of the slurry is completed. Meanwhile, the slurry generated by the filtering and solid-removing treatment is back-flushed by the purified slurry after the solid-removing treatment, the back-flushed slurry and the slurry discharged by the electrostatic separation are mixed with the dilution solvent, and then the mixture is subjected to filtering treatment again to separate heavy slurry and solid particles. The application directly sends the slurry into the electric field for separation treatment without adding the dilution solvent, the separated slurry is subjected to filtering and solid-removing treatment, then the slurry is back-flushed by a part of the purified slurry, and then the slurry is added into the dilution solvent for secondary filtering treatment. The energy consumption of the equipment is greatly reduced, and the yield of the purified slurry is higher.

A system ( 10) for separating the components of an incoming oil-water mixture includes two electrode sets (30 / 40), one set arranged to apply an electrostatic field to an oil layer residing within a separator vessel and the other set arranged to apply an electrostatic field to the interface emulsion layer residing within the separator vessel (12). The first set of electrodes (30) is in communication with a high voltage power source that ranges from 1 to 60 kV; the second set of electrodes (40) is in communication with a low voltage power source that is no greater than 5 kV. Each set of electrodes (30 / 40) may also be in communication with a second voltage source to provide increased power to promote effective coalescence. The system (10) may also include power electronics to produce a variable amplitude and a variable frequency voltage supply to one or both electrode sets (30 / 40).

Embodiments of the present disclosure provide a device for manipulating a substance, the device comprising at least three series of interdigitated electrode pairs, wherein each electrode of each pair is connected to an electrode in an adjacent pair in the respective series by an electrical path, and a dielectric layer disposed on the at least three series of interdigitated electrode pairs, the dielectric layer comprising one or more sub layers. The at least three series of interdigitated electrode pairs are selectively and independently energisable to produce an electric field at a top surface of the dielectric layer so that a substance on the top surface may be manipulated by the electric field.

Methods, systems and kits are described herein for detecting the results of an assay. In particular, the methods, systems and devices of the present disclosure rely on a difference between the diffusion rates of a reporter molecule and an analyte of interest in order to quantify an amount of analyte in a microfluidic device. The analyte may be a secreted product of a biological micro-object.

The utility model relates to lubricating oil purification technical field, and disclose a kind of PLC control's lubricating oil paint film stripping-dehydration-filtration integrated equipment, including oil tank, the right side of the oil tank is connected with turbine flowmeter by valve, the right side of the turbine flowmeter is connected with oil pump by oil pipe, the other end of the oil pump is connected with electric adsorption purifier.This PLC control's lubricating oil paint film stripping-dehydration-filtration integrated equipment, the right side of oil tank is connected with turbine flowmeter by valve, turbine flowmeter cooperation moisture on-line monitor in oil tank interior carries out regulation and control to overall system, can be according to the quality of current oil product and utilize PLC selectively open, improve flexibility, electric adsorption purifier can adsorb paint film and colloid in lubricating oil, adsorption type dehydration purifier can remove moisture in lubricating oil, coarse filter is used to capture large particle impurities in oil, pressure sensor can real-time monitoring the pressure of each component, valve on pipeline can be flexibly adjusted, ensure the stability of system.

The waste recovery device for diamond machining comprises a raw material channel, a magnetic mixing cavity, a magnetic separation mechanism, an electric mixing cavity and an electric separation mechanism, and the magnetic separation mechanism comprises a magnetorheological fluid storage box, a magnetic field separation channel, an electromagnetic coil and a coarse diamond outlet pipe; the electric separation mechanism comprises an electrorheological fluid storage box, an electric field separation channel, an electrode plate and a fine diamond outlet pipe, waste materials generated during machining are conveyed to the magnetic separation mechanism through a raw material channel, metal particles sink to the bottom under the action of a gradient magnetic field generated by an electromagnetic coil, and slurry rich in diamond particles can be located in the middle of the magnetic field separation channel; a coarse diamond can be conveyed into an electric separation mechanism through a coarse diamond outlet pipe, an electrode plate is arranged in an electric field separation channel, a horizontal uniform electric field can be generated, the viscosity of electrorheological fluid is increased through the electric field, a uniform filtering layer is formed, particles in raw materials are filtered, a fine diamond layer is formed in the middle, and diamond particles can be discharged through a fine diamond outlet pipe; recycling is achieved, and the production cost of manufacturers is reduced.

A system may include a horizontal actuator to move a tray, to which a microwell plate and a microfluidic chip may be coupled. The system may include a vertical actuator to move a support arm, to which a plurality of pipettes or pipette tips may be coupled. The system may include a rotational actuator to move an angle bracket, to which a magnet may be coupled. The system may include a heater, through which the pipettes may extend. The system may include a pump to control the flow of fluids through the pipettes. Disclosed methods include performing PCR within the described system.

The utility model relates to the technical field of electrolyte recovery, and discloses a dust removal filter of a waste lithium battery electrolyte recovery system, which comprises a device main body, a threaded connection pipe is arranged on the upper surface of the device main body, one end of the threaded connection pipe is in threaded connection with a mounting joint, and one side of the mounting joint is fixedly connected with a filter cartridge. A filter element is arranged in the filter cartridge, one side of the device body is rotationally connected with a rotating baffle, a limiting block is arranged on one side of the rotating baffle, and the bottom of the filter cartridge is in threaded connection with a bottom connecting pipe. According to the dust removal filter of the waste lithium battery electrolyte recovery system, the mounting connector, the filter cartridge, the rotating baffle, the limiting block and the bottom connecting pipe are arranged in a matched mode, when the dust removal filter is used, the rotating baffle is opened, the limiting block is taken down, then the filter cartridge is rotated to be taken down from the bottom connecting pipe connected through threads, and the mounting connector is rotated to be taken down; therefore, the filter cartridge structure is convenient to mount, replace and clean.

The utility model relates to the technical field of solid-liquid separation, and discloses a concentration filter with a multi-layer separation function, which comprises a filter cylinder upper half, the bottom of the filter cylinder upper half is detachably connected with a filter cylinder lower half, and the top of the filter cylinder upper half is fixedly connected with a driving assembly for driving preliminary filtration. The driving end of the driving assembly is fixedly connected with a rotating disc, the periphery of the bottom of the rotating disc is fixedly connected with a plurality of anti-blocking columns, the bottoms of the anti-blocking columns are rotatably connected with a movable circular ring, the outer wall of the movable circular ring is fixedly connected with a plurality of blades, and the upper portion of the inner wall of the upper half filtering cylinder is fixedly connected with a coarse screen. An annular screen drum is embedded in the coarse screen, and a plurality of rhombic screen holes are formed in the outer wall of the annular screen drum. According to the device, materials are preliminarily filtered through the coarse screen and the anti-blocking structure, and then the materials are subjected to multiple separation under the action of the electrophoresis structure and the activated carbon structure.

Systems and methods for separating chiral objects in a mixed solution are provided. In some aspects, a method includes providing a separation device with a mixed solution of chiral objects comprising a first species of chiral objects and a second species of chiral objects. The method also includes directing an electromagnetic system positioned about the separation device to generate a time-dependent electric field excitation configured to selectively control a propulsion of chiral objects in the mixed solution to spatially separate the first species of chiral objects from the second species of chiral objects inside the separation device. The method further includes collecting spatially separated chiral objects from the separation device.