| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Hydrodynamic mixing method and device | JP20910187 | 1987-08-20 | JPS6354924A | 1988-03-09 | BOOJIE FUREDORITSUKUSON; JIEFURII RERU CHIYANBAARIN |
| A plurality of fluent substances are combined in a distributor (11) and caused to flow in a continuous, pressurized stream through a mixing zone (13) wherein the substances are intimately mixed by turbulent dispersion effected by a series of conically shaped surfaces (24,27) and alternate restrictions (25) and expansion chambers (28). While various fluent substances may be advantageously mixed, a typical utility is for effecting a thorough air binding of ink particles to attain efficient foaming in the deinking of reconstituted printed paper slurry. | ||||||
| 42 | JPS61501272A - | JP50105885 | 1985-02-26 | JPS61501272A | 1986-06-26 | |
| In deinking, the flotation of fiber suspensions is performed in a cylindrical tank 2 to which the fiber suspension is fed through a coupling means 36 as primary stream. The fiber suspension is already aerated and is withdrawn through a suction connection 33 below the coupling means 36 and fed after another aeration through a secondary connection 35 above the coupling means. The volume of the circulated secondary stream is greater than the volume of the primary stream. It is thereby assured that the fiber suspension is aerated at least twice and thus better cleaned. | ||||||
| 43 | JPS5837021B2 - | JP11859974 | 1974-10-15 | JPS5837021B2 | 1983-08-13 | CHAARUZU ARUBAATO GURIIN |
| An impeller for a flotation machine having an upper circular plate with a central hole for supplying air through a hollow shaft to the underside, and a lower circular plate having a larger central hole and sloping toward the first plate to the outside, together with a series of radial, upright vanes between the plates which are thicker at their outer edges than at their inner edges, both of which are rounded. A series of radial fingers shorter than the vanes extend upwardly from the periphery of the upper plate. These fingers are also thinner at their inner rounded edges and thicker at their outer rounded edges. | ||||||
| 44 | Device for removing impurity contained in liquid in form of solid grain by flotation | JP16901480 | 1980-11-29 | JPS56161849A | 1981-12-12 | ENAARU BUARENTEIN HERUBERUGU |
| A floatation tower for paper recovery has a set of cells one above the other, holding the fibrous paper paste, and into which water and compressed air are injected so that the impurities mix. with the bubbles to form a foam which can be removed separately. Water is admitted as a thin layer at the same time as the air to mix. with the liquid paste as it is circulated in a thin layer in a mixing chamber, passing it through and along the flow, controlling the thickness of the layer. Air is then admitted to skin off the foam and drive it into a collector vessel below, for recycling. By a similar process for each cell, ink, kaolin and fibres can be removed separately. The mixing chamber is conical, with a tangential lop entry. | ||||||
| 45 | JPS5623659B2 - | JP4099577 | 1977-04-12 | JPS5623659B2 | 1981-06-01 | |
| A floatation tower for paper recovery has a set of cells one above the other, holding the fibrous paper paste, and into which water and compressed air are injected so that the impurities mix. with the bubbles to form a foam which can be removed separately. Water is admitted as a thin layer at the same time as the air to mix. with the liquid paste as it is circulated in a thin layer in a mixing chamber, passing it through and along the flow, controlling the thickness of the layer. Air is then admitted to skin off the foam and drive it into a collector vessel below, for recycling. By a similar process for each cell, ink, kaolin and fibres can be removed separately. The mixing chamber is conical, with a tangential lop entry. | ||||||
| 46 | JPS50114305A - | JP11859974 | 1974-10-15 | JPS50114305A | 1975-09-08 | |
| An impeller for a flotation machine having an upper circular plate with a central hole for supplying air through a hollow shaft to the underside, and a lower circular plate having a larger central hole and sloping toward the first plate to the outside, together with a series of radial, upright vanes between the plates which are thicker at their outer edges than at their inner edges, both of which are rounded. A series of radial fingers shorter than the vanes extend upwardly from the periphery of the upper plate. These fingers are also thinner at their inner rounded edges and thicker at their outer rounded edges. | ||||||
| 47 | Drive module and its uses, a flotation plant and a method of changing of the drive module | US15571891 | 2015-05-13 | US10137460B2 | 2018-11-27 | Pekka Tähkiö; Valtteri Vaarna; Matti Luukkonen |
| A drive module which is a self-supporting structure being transferable and hoistable as an integral entity. The drive module includes a self-supporting framework having a shape of a rectangular parallelepiped. The self-supporting framework defines an inner space within the self-supporting framework. The drive module also includes at least two drive units. The drive units are supported to the self-supporting framework in the inner space of the self-supporting framework. The drive units are connectable to an external rotatable shaft for the rotation of the rotatable shaft located outside the drive module. | ||||||
| 48 | Flotation Separation Device and Method | US14587173 | 2014-12-31 | US20150108044A1 | 2015-04-23 | Michael J. Mankosa; Jaisen Kohmuench; Eric S. Yan; Gerald H. Luttrell |
| What is claimed is a flotation separation system for partitioning a slurry. The slurry includes a hydrophobic species that can adhere to gas bubbles that form within the slurry. The flotation separation system includes a flotation separation cell. The flotation separation cell has a sparger unit and a separation tank. The separation tank is constructed to allow the bubble dispersion to form a froth at the top of the slurry contained in the separation tank. The sparger unit includes a slurry inlet, a slurry outlet, a sparging mechanism, a high shear element, and a gas inlet. | ||||||
| 49 | Flotation separation device and method | US12101376 | 2008-04-11 | US08960443B2 | 2015-02-24 | Michael J. Mankosa; Jaisen Kohmuench; Eric S. Yan; Gerald H. Luttrell |
| A flotation separation system is provided for partitioning a slurry that includes a hydrophobic species which can adhere to gas bubbles formed in the slurry. The flotation separation system comprises a flotation separation cell that includes a sparger unit and a separation tank. The sparger unit has a slurry inlet for receiving slurry and a gas inlet to receive gas with at least enough pressure to allow bubbles to form in the slurry within the sparger unit. The sparger unit includes a sparging mechanism constructed to disperse gas bubbles within the slurry. The sparging mechanism sparges the gas bubbles to form a bubble dispersion so as to cause adhesion of the hydrophobic species to the gas bubbles substantially within the sparger unit while causing a pressure drop of about 10 psig or less across the sparging mechanism. The sparger unit includes a slurry outlet to discharge the slurry and the bubble dispersion into the separation tank. | ||||||
| 50 | Self Contained Dissolved Air Flotation System | US13726966 | 2012-12-26 | US20130112626A1 | 2013-05-09 | David P. Lambert; James J. Houtz |
| A dissolved air flotation system and method for purifying fresh water. The system is self-contained within a standard shipping container, with all components disposed in-line within the shipping container. Float is removed from the flotation tank with a skimmer that drives float downstream onto a conveyor belt, and the conveyor belt conveys float away from the flotation tank, in the downstream direction, and deposits the float in a collection tank. Clean water may be drawn from the flotation tank continuously, while float may be removed periodically. | ||||||
| 51 | Self contained dissolved air flotation system | US13185690 | 2011-07-19 | US08343355B2 | 2013-01-01 | David P. Lambert; James J. Houtz |
| A dissolved air flotation system and method for purifying fresh water. The system is self-contained within a standard shipping container, with all components disposed in-line within the shipping container. Float is removed from the flotation tank with a skimmer that drives float downstream onto a conveyor belt, and the conveyor belt conveys float away from the flotation tank, in the downstream direction, and deposits the float in a collection tank. Clean water may be drawn from the flotation tank continuously, while float may be removed periodically. | ||||||
| 52 | Method for separating suspended solids from a waste fluid | US12462878 | 2009-08-11 | US20110036779A1 | 2011-02-17 | Joel Bias; Brian Ross |
| The disclosure relates to a separation process. An aerated inlet mixture of fluid and solids is fed to a flotation separation vessel and is separated into an upper float layer and a lower clarified layer. The upper float layer is withdrawn from the vessel when the height of the upper float layer exceeds the height of an overflow conduit and forms a concentrated solids effluent The lower clarified layer is withdrawn from the separation vessel as a clarified fluid effluent. The separation process is performed continuously using a control process that maintains a relatively stable distribution between the lower clarified layer and the upper float layer. The control process is a closed loop process that monitors the instantaneous height of the vessel contents and computes an error function based on the instantaneous height and a set-point height The error function is used to periodically adjust the outlet flowrate of the clarified fluid effluent. The resulting process has improved stability (e.g., being continuously operable without interruption and/or operable for extended periods between intermittent cleaning processes) and provides a concentrated solids effluent with solids concentrations higher than those previously attainable in similar separation processes. | ||||||
| 53 | INJECTOR FOR FLOTATION CELL | US12594036 | 2008-04-03 | US20100108614A1 | 2010-05-06 | Erkka Nieminen |
| An injector for a flotation cell, comprising a feed channel for feeding a fiber suspension flow to the flotation cell, a flow distribution element for distributing the fiber suspension flow fed to the injector into partial flows, a mixing apparatus for mixing air with the fiber suspension flow, and at least one air input point for sucking air to be mixed with the fiber suspension flow into the injector. The feed channel, the flow distribution element and the mixing apparatus are in the injector arranged with respect to one another such that a flow direction of the fiber suspension flow in the feed channel is substantially opposite to a flow direction of the fiber suspension flow through the flow distribution element and the mixing apparatus. | ||||||
| 54 | HYDROCYCLONE AND ASSOCIATED METHODS | US11940099 | 2007-11-14 | US20090120850A1 | 2009-05-14 | Jan Kruyer |
| A hydrocyclone can be used for separating components of a fluid. The hydrocyclone can include a substantially open cylindrical vessel and a helical confined path connected upstream of the cylindrical vessel. The open vessel can include an open vessel inlet configured to introduce a fluid tangentially into the open vessel. The helical confined path can be connected to the open vessel at the open vessel inlet. One or more wash inlets can be used to introduce a wash fluid into the helical confined path and/or the open vessel. An overflow outlet and underflow outlet can be operatively attached to the open vessel for removal of the separated fluid components. Although a number of fluids can be effectively treated, de-sanding of bitumen slurries from oil sands can be readily achieved. | ||||||
| 55 | Self contained dissolved air flotation system | US10376573 | 2003-02-27 | US07033495B2 | 2006-04-25 | David P. Lambert; James J. Houtz |
| A dissolved air flotation system and method for purifying fresh water. The system is self-contained within a standard shipping container, with all components disposed in-line within the shipping container. Float is removed from the flotation tank with a skimmer that drives float downstream onto a conveyor belt, and the conveyor belt conveys float away from the flotation tank, in the downstream direction, and deposits the float in a collection tank. Clean water may be drawn from the flotation tank continuously, while float may be removed periodically. | ||||||
| 56 | Three zone dissolved air floatation clarifier with fixed lamellae and improved paddle-and-ramp sludge removal system | US09236910 | 1999-01-25 | US06174434B1 | 2001-01-16 | Milos Krofta |
| A compact dissolved-air-flotation (DAF) clarifier treats raw water with suspended solid contaminants first in a flocculator at the center of an annular tank where microscopic air bubbles float flocked contaminants to form a floating sludge layer. The flocculator has a fixed, cylindrical sidewall. A first clarification, calming and degassing occur here. The water then flows radially outwardly into the tank with a straight cylindrical outer wall where further quiet clarification occurs. A third level of clarification occurs in a lower portion of the tank, specifically, within a set of fixed, inclined lamellae, where a final clarification occurs. The bottom wall of the tank has a set of apertures which allow a gravity flow of clarified water through a layer of pressurized gas to an underlying collection compartment. A set of rotating paddles push the sludge layer up a ramp to an opening in an inclined discharge conduit. The paddles extend generally from the region over the full surface area of the tank, to its outer wall, which is preferably cylindrical. The ramp twists about its radial axis, being shallower and longer at its outer edge and steeper and shorter at its inner edge. An offset drive operating through a belt rotates the paddles, a movable cylindrical wall surrounding the lower portion of the fixed flocculator wall, and at least one scraper secured at one end to the movable wall and extending radially under the lamellae. | ||||||
| 57 | Sequential air dissolved floatation apparatus and methods | US356967 | 1999-07-19 | US6126815A | 2000-10-03 | Maher I. Kelada |
| Sequential DAF apparatus and methods providing zero pool and nonmechanical waste material removal are disclosed which include a number of floatation tanks each arranged to operate either independently or sequentially, each tank has a conical shaped bottom with a centrally located port at the lowest vertical position of the tank, each tank is fitted with a number of valves and plumbing which allows an operator to fill each tank with waste water charged with dissolved air through the central port which is then retained during a floatation period to allowed waste material to separate from clarified water in the tank. Clarified water and waste material is removed from the bottom of the tank through the central port. Water clarity sensors are positioned in the tank near the central port. A final rinsing step may be included to assure all floated material is removed from the tank before refilling. The system may include any number of tanks necessary to achieve net flow of the waste water stream entering the system while the tanks are dimensioned and flow rates are adjusted so that a tank fill flow period, retention period, and clarified water and waste material drain period are about equal allowing sequential operation of the system and net flow. | ||||||
| 58 | Method and apparatus for feeding coolant liquid and separating and recovering it in cutting machine and grinding machine | US945291 | 1997-10-14 | US6071047A | 2000-06-06 | Yoshikazu Nakai |
| A coolant liquid feeding method comprises feeding a coolant liquid, with air bubbles caused to form continuously therein, for cutting or grinding operation to a region under machining, expediting the splashing of air bubbles in all directions when the air bubbles impinge on the region under machining and burst, and also expediting the entry of accelerated splashed liquid particles into a cutter/workpiece pressure contact plane, thereby improving the cooling and lubrication of the region under machining, whereby the air bubbles in the coolant liquid which has failed to reach the region under machining or which, though reaching there, has left there for the recovery channel are allowed to adhere to suspended foreign matters in the liquid, thereby expediting the surfacing of the foreign matters. The coolant liquid is discharged downward generally as a spiral flow which is a collection of particulate turbulent flows, thereby forming a cylindrical veil of coolant liquid which surrounds the milling tool or grinding tool and whose lower end reaches the surface of the workpiece, at least part of the spiral flow being caused to move from the lower end of the cylindrical veil along the surface of the workpiece in a whirl toward the central region until it is fed to the region under machining which is in contact with the milling tool or grinding tool. | ||||||
| 59 | Three zone dissolved air flotation clarifier with improved efficiency | US638116 | 1996-04-26 | US5846413A | 1998-12-08 | Milos Krofta |
| A compact dissolved-air-flotation (DAF) clarifier and clarification process utilize three zones for clarification which operate in sequence in a single clarifier. Raw water with suspended solids enters a flocculator at the center of an annular tank where microscopic air bubbles introduced to the inflow float flocked contaminants to form a floating sludge layer. A first clarification, calming and degassing occur here. The water then flows radially outwardly into the tank where further quiet clarification occurs. A third level of clarification occurs in a lower portion of the tank, specifically, in a set of plate-like lamellae, radial and conical, which form inclined channels where a final clarification occurs. The bottom wall of the tank has a set of apertures which allow a gravity flow of clarified water through a layer of pressurized gas to an underlying collection compartment. Level sensors control a valve in the clarified outflow line and an air bleed from the pressurized gas layer to regulate liquid levels in the clarifier. A set of rotating paddles push the sludge layer up a ramp to an inclined discharge conduit. Alternatively, a suction head with a mechanical skimmer sweeps around the tank to draw the sludge through a central hollow pipe to a discharge conduit. An offset drive operating through a belt rotates the sludge removal mechanism and the lamellae. | ||||||
| 60 | Flotation method and apparatus | US429746 | 1995-04-26 | US5643459A | 1997-07-01 | Gale L. Hubred; William A. C. Meekel; Harold E. Wyslouzil |
| Flotation apparatus (10) for removing finely divided bodies of an insoluble substance dispersed in an aqueous medium, such as oil and solids dispersed in water, comprises a vertical flotation column (12) having a feed inlet (14) and an outlet (22) for the aqueous medium, a sparging system (16) for generating gas bubbles rising upwardly in the aqueous medium to capture and raise the finely divided bodies of the insoluble substance to the surface of the aqueous medium in the column to form a layer (31) of the insoluble substance on the surface of the aqueous medium, a launder (18) for receiving an overflow of the insoluble substance and an outlet (20) for the insoluble substance in the launder. The apparatus (10) can be used in both countercurrent and co-current fashion. In a particular embodiment, the apparatus includes a mechanism for the intermittent dumping of the layer (31) of insoluble substance from the column (12). | ||||||
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