293 results about "Suspension flow" patented technology

A centrifuge chamber of a cell separator having a separation channel with an inlet to introduce the cell suspension and at least one outlet to withdraw a fraction of the cell suspension is described. The cell suspension can be blood. The separation channel is shaped like a spiral extending from the radially outer end of the channel to the radially inner end of the channel, with a progressive slope. The centrifuge chamber allows a uniform, contaminant free separation of the cell suspension into its components.

This invention relates to a method by which liquid feedstock suspensions containing fine particles, micron- and nano-sized, are injected, with sufficient droplet velocity, preferably axially, into a thermal spray apparatus for the production of high-quality nanostructured coatings. The method allows complete entrainment of the droplets in a high temperature gas stream, while the injection orifice remains potentially blockage-free for long periods of operation.

A method and system for reducing stress corrosion cracking in a hot water system, such as a nuclear reactor, by reducing the electrochemical corrosion potential of components exposed to high temperature water within the structure. The method comprises the steps of: providing a reducing species to the high temperature water; and providing a plurality of noble metal nanoparticles having a mean particle size of up to about 100 nm to the high temperature water during operation of the hot water system. The catalytic nanoparticles, which may comprise at least one noble metal, form a colloidal suspension in the high temperature water and provide a catalytic surface on which a reducing species reacts with least one oxidizing species present in the high temperature water. The concentration of the oxidizing species is reduced by reaction with the reducing species on the catalytic surface, thereby reducing the electrochemical corrosion potential of the component.

A clarification system may comprise a channel having an inlet and an outlet, a length, bottom, and a height sufficient to contain a liquid having a depth. The clarification system may include one or more gas injectors disposed within the channel, configured to inject gas bubbles into a suspension flowing in the channel. In some embodiments, at least one gas injector injects gas bubbles having average or median size that does not exceed 100 microns in diameter. Some gas injectors inject bubbles having mean size below 50 microns. Some gas injectors inject gas via the precipitation of gas bubbles from a supersaturated liquid including a dissolved gas. Certain embodiments may be configured to form a quiet zone, typically near the top of the flowing suspension, in which turbulence may be minimized or substantially eliminated. Certain systems include a plurality of gas injectors disposed at different lengths along the channel.

The invention relates to a car posture adjusting system. A power source is connected with an oil tank, an output end of the power source is sequentially in serial connection with an inlet oil filter and an unloading valve, and a two-position three-way solenoid valve can serve as the unloading valve to supply pressure oil to the adjusting system through electromagnetic reversing. An overflow valve is parallelly connected with the unloading valve, and control on critical pressure of the system can be achieved by adjusting a handle. A b end of an oil outlet of the unloading valve is respectively connected with oil inlet ends of a front suspension control valve and a rear suspension control valve through high-pressure hard tubes or hoses, oil outlet ends of the front suspension control valve and the rear suspension control valve are sequentially connected with a throttle valve group and a suspension hydraulic lock serially, and the suspension hydraulic lock is connected with an oil-gas suspension through a pipeline. When the suspension hydraulic lock is powered off, liquid oil in the oil-gas suspension is separated from the car posture adjusting system, so that stability of car postures and driving performance is ensured, and when the suspension hydraulic lock is powered on, the liquid oil in the oil-gas suspension flows back to the oil tank through the car posture adjusting system.

A device for extracting a liquid phase from a suspension, the device being characterized in that it comprises: a main duct for conveying a flow of said suspension, the duct being of a length that is sufficient to enable a layer of said suspension to develop that is depleted in solid phase; flow disturbance means for disturbing the flow of said suspension, said means being provided in the main duct and being adapted to cause at least one recirculation vortex to form so as to increase locally the thickness of said depleted layer; and liquid extraction means disposed in a region of the device where said suspension is enriched in liquid phase as a result of said recirculation vortex.

A method of extracting a liquid phase from a suspension, the method comprising injecting said suspension into such a device at a flow rate suitable for causing at least one recirculation vortex to be formed, and extracting a fraction of said suspension that is enriched in liquid as a result of said vortex.

The invention provides a microalgae high-pressure continuous tower-type liquefying process, which comprises the following steps of: pressurizing microalgae-containing suspension by using a high-pressure pump, making the suspension flow through a heat exchanger to exchange heat with liquefied liquid, heating to be between 180 and 250 DEG C according to a certain heating curve by using a heating furnace, and preserving heat in a gelatinizing tower for certain time to make solid biomass changed into flowable slurry; quickly heating gelatinized liquid to be between 270 and 350 DEG C at a certain heating rate by using a secondary heating furnace, and adding into a liquefying tower for hydrothermal liquefying to prepare a liquid fuel; separating coke slurry from a hydrothermal liquefying product by using a high-pressure settling tank, discharging the coke slurry from a coke slurry outlet, and making liquefied gas liquid pass through the top of the high-pressure settling tank, exchange heat with the microalgae suspension through the heat exchanger and flow into a three-phase separator; separating the liquefied gas liquid into a water phase, an oil phase and a gas phase in the three-phase separator, circulating and discharging the water phase by connecting the water phase with the high-pressure pump and a discharging port from the lower part of the three-phase separator, concentrating to prepare a foliar fertilizer, biological gasoline or a snow-melting agent and the like, discharging the oil phase from a biological oil outlet in the middle of the three-phase separator to obtain a product, and discharging the gas phase from a tail gas outlet on the top of the three-phase separator to serve as a fuel; and discharging the solid-phase coke slurry to serve as an activated carbon material or a fuel.

The invention discloses double-sphere type suspension filler which comprises a first sphere and a second sphere. The first sphere and the second sphere are each composed of criss-cross partition strips, and meshes are formed between the partition strips. The second sphere is sleeved with the first sphere, and the first sphere and the second sphere are connected through a connecting rod. The second sphere is filled with filling sponge. By establishing functional regions of different structures, microorganisms with different functions grow on the first sphere, the second sphere and the filling sponge, the species and number of microorganisms are enriched, the concentration of microorganisms in a pool is high, and capacity loads are improved; in addition, the filler has high biocompatibility, rapid growth of a biological film is promoted so that film hanging can be achieved, and the problem that other filler can hardly be hung to form films is solved. In the use process, the filler is in a suspension flowing state in the pool, sewage and air can make contact with the biological film on the surface of the filler, the mass transfer efficiency of the gas phase, the liquid phase and the solid phase is promoted, and the degradation speed of pollutant in water is increased.

The present invention relates to particles that are useful for enhancing hindered settling in suspensions. One embodiment of the present invention provides a method of providing a subterranean treatment fluid including a base fluid and a weighting agent having a first average settling velocity; and a neutral-density particle; and mixing the subterranean treatment fluid with the neutral-density particle thereby reducing the weighting agent to a second average settling velocity.

The present invention relates to an apparatus for monitoring the progress of membrane fouling that occurs on pores as well as on the surface of a membrane by means of variations of zeta potential (zeta) of a hollow-fiber membrane according to time passage of filtration of a suspension, wherein colloid particles, biopolymers and other inorganic particles are dispersed, and the method thereof. Moreover, the present invention also relates to a method to identify the effect of concentration polarization layer and cake layer which can vary according to the axial position of a hollow-fiber and the developing progress of a membrane fouling by measuring the position-dependent zeta potential of the hollow-fiber membrane.

Disclosed are a method for producing an aripiprazole suspension, wherein the aripiprazole has a mean particle size of 1 to 10 μm, the method comprising the steps of: (a) combining bulk aripiprazole and a vehicle to form a primary suspension; (b) subjecting the primary suspension to first pulverization using e.g., a high shear pulverizing machine, a dispersion machine that applies shear force to a material to be processed, a colloid mill, an ultrasonic dispersion machine, or a high-pressure jet type emulsifying dispersion machine to form a secondary suspension; and (c) subjecting the secondary suspension to second pulverization using e.g., a high-pressure jet type emulsifying dispersion machine to form a sterile final suspension; and a method for producing a freeze-dried formulation from the aripiprazole suspension.

A cell separation device which can perform a continuous processing without bonding fluorescent molecules or magnetic particles to the surface of the cell membrane, a cell separation system, and a cell separation method, wherein when a sample cell suspension containing the desired target cells is supplied continuously from a sample inlet and physiological saline is supplied continuously from a physiological saline inlet, the sample cell suspension flows together with the physiological saline in a liquid flow path and an adsorption force acts on the target cells due to affinity bonding from the adsorbing portions of adsorbing regions in the form of strips formed in a planar wall portion. Since the adsorbing regions in the form of strips are disposed in an asymmetric fashion to the flow path direction of the liquid flow path, the adsorption force acting on the target cells has a constituent perpendicular to the flow path direction. As a result, the target cells shown in FIG. 1 collect on one side of the planar wall portion after flowing for a prescribed distance in the liquid flow path and can be separated continuously from the non-target constituents.

The present invention relates to a method for impregnating a porous body (14) by a suspension (12) containing at least partly particles, said body comprising a multiplicity of channels (16) delimited by porous walls (22) extending from one (18) of the faces to the other (20) face of said body, part of said channels being obstructed at one face and the other part of the channels being obstructed at the other face.

According to the invention, the method consists in:

• • making a suspension whose particle size distribution meets a D_V90/D_pores ratio below 0.25 and whose viscosity is such that said suspension is brought inside the walls while depositing part of the particles on the surface of the pores of the walls,
  • communicating one (18, 20) of the faces of body (14) with an enclosure (30) containing the suspension,
  • feeding the suspension into the body,
  • exerting a force on the suspension introduced so that said suspension flows through the walls,
  • passing a fluid through the walls.

Pressurized screen to remove contaminants from a contaminant-containing fibrous paper suspension. Pressurized screen includes a housing, a first screen element, essentially axially symmetric and rotatably mounted within housing, and a second screen element, which is essentially axially symmetric. First and second screen elements are successively arranged in suspension flow direction. At least one intake, coupled to housing, supplies suspension to housing, and at least one accepts outlet, coupled to housing, conveys a part of suspension that passes through the second screen element out of housing. At least one coarse reject outlet is located within housing to remove a part of suspension not passing through first screen element, and at least one fine reject outlet is located within housing to remove a part of suspension not passing through second screen element. First screen element includes conical shape with opening angle (alpha) between about 10° and 170°.

The invention relates to an ultrasound field intensity coupling suspension driving device of metal suspension liquid and a using method thereof; the device comprises an upper ultrasound wave generator, an upper ultrasound wave energy converter, an upper amplitude transformer, an upper coupling radiation block, a casting mold, a heat preserving furnace, an ultrasound wave generator, a lower ultrasound wave energy converter, a lower amplitude transformer and a lower coupling radiation block; the upper amplitude transformer and the lower amplitude transformer are respectively sheathed with an upper water-cooled jacket and a lower water-cooled jacket; the using method is that: molten metal is arranged in the casting mold, the molten metal level and the bottom end surface of the upper couplingradiation block are arranged at the same water plane; ultrasound wave energy is coupled to the molten metal by the upper coupling radiation block and the lower coupling radiation block, and water flows to the upper water-cooled jacket and the lower water-cooled jacket at the same time. The ultrasound field intensity coupling suspension driving device can realize alloying of aluminium metal material and integration and continuity in the preparing process of compound material and is a high-performance material-preparing technology which has high efficiency and low cost and is environmental-protection, and energy saving.

A pressure screening apparatus for screening a stock suspension and screen clearer for a pressure screening apparatus. The pressure screening apparatus includes an inflow chamber, a suspension inflow connected to one end of the inflow chamber, a reject outflow connected to another end of the inflow chamber, an accepted stock chamber, an acceptance stock pipe connected to the accepted stock chamber, at least one screen element disposed between the inflow chamber and the accepted stock chamber, a screen clearer adapted to move with respect to the at least one screen element for preventing clogging of the at least one screen element, the screen clearer comprising at least a first clearing zone and at least a second clearing zone, the first clearing zone having a plurality of clearing elements and the second clearing zone having a plurality of clearing elements which are different from those of the first clearing zone, wherein the stock suspension flows into the pressure screening apparatus via the suspension inflow such that a portion of the stock suspension flows through the clearing zones and exits the pressure screening apparatus through the reject outflow. The screen clearer includes a substantially cylindrical body having a cylindrical outer surface. The cylindrical outer surface includes at least a first clearing zone and at least a second clearing zone. The first clearing zone has a plurality of clearing elements. The second clearing zone has a plurality of clearing elements which are different from those of the first clearing zone. The cylindrical body is rotatably mountable.

The invention relates to the field of initiating explosive devices, in particular to a nano-explosive preparation system and a nano-explosive preparation method based on the microfluidic technology. The system comprises a fluid driving unit, a recrystallization unit, a sample collection unit and a connection component; the fluid driving unit is used for driving solvents and non-solvent solutions;the recrystallization unit comprises a temperature control device and a microchip; the microchip comprises a micro-mixing structure; after the fluid driving unit drives the solvents and the non-solvent solutions to contact with the microchip, rapid mixing can be realized at a recrystallization temperature under the action of the micro-mixing structure to form suspensions; the sample collection unit is used for collecting the suspensions flowing out from the microchip; the connection component is sequentially connected with the fluid driving unit, the recrystallization unit and the sample collection unit. The nano-explosive preparation system and the nano-explosive preparation method have the advantages that the solvents and the non-solvent solutions are rapidly mixed to react to generate the suspensions through the temperature control device and the micro-mixing structure of the recrystallization unit, and the suspensions are washed, filtered and dried to obtain nano-explosives with uniform crystal forms, good crystal appearance and concentrated particle size distribution.

The present invention provides methods, systems, assemblies, and articles for capturing single cells with a capture chip. In certain embodiments, the capture chip comprises a substrate comprising a plurality of cell-sized dimples or wells that each allow a single cell to be captured from a cell suspension. In some embodiments, the dimples or wells of the capture chip align with the holes or wells of a multi-well through-hole chip, and/or a multi-well chip, such that the cell, or the contents of the single cell, may be transferred to a corresponding well of the multi-well chip. In particular embodiments, the bottom of each dimple or well of the capture chip has a positive electrical charge sufficient to attract cells from a cell suspension flowing over the dimples or wells.