| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Self contained dissolved air flotation system | US10376573 | 2003-02-27 | US20040168965A1 | 2004-09-02 | 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. | ||||||
| 122 | Portable wastewater treatment method | US630855 | 1996-03-20 | US5755973A | 1998-05-26 | Joseph P. Krieger |
| A portable wastewater treatment system for recycling an aqueous surfactant solution utilized in a parts washer assembly for cleaning parts. The system including a contaminated solution storage tank, a treated solution storage tank, and a portable wastewater treatment apparatus wherein contaminated aqueous surfactant solution is collected in the contaminated solution storage tank, withdrawn from the contaminated solution storage tank, injected with air and passed into a mixing zone where the mixture is sprayed with water. The treated solution in the mixing zone is passed into a quiescent zone where light sludge is passed to the top of the quiescent zone and heavy sludge is passed to the bottom of the quiescent zone, the treated wastewater being disposed between the light sludge and the heavy sludge and the treated wastewater being passed from the quiescent zone into a discharge zone where the treated wastewater is discharged therefrom. The heavy sludge is selectively discharged from the quiescent zone. The light sludge is passed from the quiescent zone into a light sludge bin where the light sludge is selectively discharged therefrom. The treated solution is passed to the treated solution storage tank to provide a recycled supply of treated cleaning solution. | ||||||
| 123 | Sparger for producing gas bubbles in a liquid | US485378 | 1995-06-07 | US5693263A | 1997-12-02 | William A. C. Meekel; Harold E. Wyslouzil |
| A sparger (100) for producing gas bubbles in a liquid comprises a body member (102) having a gas inlet (105) and an outlet portion (106) provided with a gas outlet (108). The outlet portion (106) has an internal bore (110) which is in communication with the gas inlet (105) and the gas outlet (108). The bore (110) has opposite sides which converge in the direction of the outlet (108) to form a tapered region (112) in the bore (110). The bore (110) has a substantially constant diameter along at least a part of its length in an area between the tapered region (112) and the outlet (108). The sparger (100) further comprises a valve member (114) which is moveable into said tapered region (112) towards the outlet (108) for controlling the flow of gas through the outlet (108). | ||||||
| 124 | Water treatment methods | US338311 | 1994-11-14 | US5609769A | 1997-03-11 | Joseph P. Krieger |
| A wastewater treatment system wherein wastewater and air are passed into a mixing zone where the mixture is sprayed with water. The treated wastewater in the mixing zone is passed into a quiescent zone where light sludge is passed to the top of the quiescent zone and heavy sludge is passed to the bottom of the quiescent zone, the treated wastewater being disposed between the light sludge and the heavy sludge and the treated wastewater being passed from the quiescent zone into a discharge zone where the treated wastewater is discharged therefrom. The heavy sludge is discharged from the quiescent zone at predetermined discharge times and at predetermined intervals. The light sludge is passed from the quiescent zone into a light sludge bin where the light sludge is discharged therefrom for predetermined discharge time at predetermined discharge intervals. The heavy sludge and/or the light sludge then is passed into a drying system for drying the light sludge and the heavy sludge. | ||||||
| 125 | Floatation method and apparatus | US478216 | 1995-06-07 | US5584995A | 1996-12-17 | 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). | ||||||
| 126 | Portable wastewater treatment method | US300686 | 1994-09-02 | US5534159A | 1996-07-09 | Joseph P. Krieger |
| A portable wastewater treatment system for recycling an aqueous surfactant solution utilized in a parts washer assembly for cleaning parts. The system including a contaminated solution storage tank, a treated solution storage tank, and a portable wastewater treatment apparatus wherein contaminated aqueous surfactant solution is collected in the contaminated solution storage tank, withdrawn from the contaminated solution storage tank, injected with air and passed into a mixing zone where the mixture is sprayed with water. The treated solution in the mixing zone is passed into a quiescent zone where light sludge is passed to the top of the quiescent zone and heavy sludge is passed to the bottom of the quiescent zone, the treated wastewater being disposed between the light sludge and the heavy sludge and the treated wastewater being passed from the quiescent zone into a discharge zone where the treated wastewater is discharged therefrom. The heavy sludge is selectively discharged from the quiescent zone. The light sludge is passed from the quiescent zone into a light sludge bin where the light sludge is selectively discharged therefrom. The treated solution is passed to the treated solution storage tank to provide a recycled supply of treated cleaning solution. | ||||||
| 127 | Method of and means for hydrodynamic mixing | US898475 | 1986-08-20 | US4861165A | 1989-08-29 | Borje Fredriksson; Jeffery L. Cahmberlin |
| A plurality of fluent substances are combined in a distributor (11, 37) and caused to flow in a continuous, pressurized stream through a mixing zone (13, 13', 57) wherein the substances are intimately mixed by turbulent dispersion effected by a series of conically shaped surfaces (24, 27; 62, 64) and alternate restrictions (25, 63) and expansion chambers (28, 65). While various fluent substances may be advantageously mixed, a typical utility is for effecting a through air binding of ink particles to attain efficient foaming (29) in the deinking of reconstituted printed paper slurry. | ||||||
| 128 | Method for treatment of waste water and its apparatus | US12181 | 1987-02-09 | US4772398A | 1988-09-20 | Yoshikazu Sando; Hiroshi Ishidoshiro |
| For the treatment of waste water in the liquid treatment of a textile material, air bubbles are generated in water containing floating impurities stored tentatively in a waste water tank so as to adhere the impurities on the surface of the air bubbles, adhering the impurities together with air bubbles on the surface of a filter comprising a mesh belt or a mesh drum by pulling up the filter successively, and removing the impurities from the filter thus pulled up due to the effect of vacuum suction, and an apparatus therefor. The impurities remaining still on the surface of the filter may further be removed therefrom by washing the filter with the aid of water and air jets. | ||||||
| 129 | Flotation separating system | US683008 | 1984-12-18 | US4617113A | 1986-10-14 | John A. Christophersen; Fred J. Marquardt; Donald E. Zipperian |
| Improvements in flotation separating systems of the type employing small rising air bubbles to induce ascension of certain types of particles in a flotation compartment while other particle types descend toward the bottom of the compartment include a bubble passing, particle blocking barrier forming the bottom of the compartment separating the compartment from a source of air bubbles while allowing the introduction of a uniform distribution of air bubbles into the compartment in the form of a gently sloped conical plate having a plurality of aerated water passing apertures and an array of downwardly extending pocket forming baffles for limiting bubble migration along the slope of the lower plate surface. The baffles are generally configured as radially and circumferentially extending baffle portions. Particles are prevented from passing through the plate apertures by introducing additional sealing water flowing toward the barrier from beneath by way of a plurality of inwardly extending water supply pipes opening downwardly at their innermost ends. The flotation separating system is preferably of the water recirculating type and includes a readily removable strainer basket suspended in a water drainage path for collecting contaminants which are inadequately separated by the flotation process. | ||||||
| 130 | Inclined static deoiler and conditioner for treating ore | US244601 | 1981-03-17 | US4344844A | 1982-08-17 | J. O. Townley |
| An inclined static deoiler and conditioner for treating ore such as coal, phosphate, and the like which combines with liquid to form a slurry prior to froth floation which includes in combination a trough having plural baffles therein which are oriented to cause turbulence in the slurry. End walls on the trough are provided having an inlet and outlet adapted to fasten to piping in which the maximum flow rate is determined by the piping diameter such that liquid entering in the trough is assured of staying substantially at or below the vertical height of the baffles. The through flow within the device is controlled by angulation of the trough which is variable, and baffle configuration. | ||||||
| 131 | Method of and arrangement for the de-inking of pulp suspensions | US194243 | 1980-04-21 | US4331534A | 1982-05-25 | Wolfgang Barnscheidt |
| A pulp suspension of waste paper which is laden with air bubbles is introduced into a flotation cell. Fine air bubbles rise through the pulp suspension toward the top. Printing ink and other impurities are deposited on the bubbles which form a foam layer on the surface of the pulp suspension. The foam which is laden with impurities is drawn off from the surface. The fibers which have been subjected to preliminary purification in this manner sink downwardly. For reducing the number of cells connected in series to fewer than a third, while obtaining the same degree of whiteness, the fibers which were subjected to preliminary purification are drawn off and are once again supplied to the flotation cell in the form of an air-laden pulp suspension. Alternatively, instead of the air-laden pulp suspension, a water-air suspension can be injected. The air bubbles which are thus introduced once again rise toward the top and traverse the sinking fibers in a counterflow. As a result, an intensive air-pulp contact is created. | ||||||
| 132 | Flotation machine with mixing and aeration impeller and method | US795004 | 1977-05-09 | US4169047A | 1979-09-25 | Robert A. Wilson |
| A mixing and aeration impeller is comprised of a hub and a plurality of first flutes interspaced between and joined to a plurality of second flutes. The flutes are adapted to the hub and have troughs which begin proximate the hub and extend radially away from and angularly downward and upward away from a plane normal to a shaft to which the impeller is adapted. The flutes are preferably formed as one unitary structure and shaped in a periodic pattern which may be generally sinusoidal or trapezoidal in cross section normal to the radius of the impeller along the length of the troughs. The impeller includes means to receive compressed air from a source and means to exhaust the compressed air radially outward from the rim. The hub has means to receive the compressed air and to communicate it to a passage or gap formed in the flutes to transmit the air radially outward to the rim. The air is exhausted through a slot along the rim of the impeller. A shroud with radial fins may be positioned about the impeller. The impeller used is the agitation means in a flotation machine for recovering mineral values. A method of agitation and aeration is also disclosed. | ||||||
| 133 | Apparatus for and method of automatically cleaning an obstructed valve | US632278 | 1975-11-17 | US3991781A | 1976-11-16 | Roderick M. Willis; Charles L. Oldfather |
| Waste water containing particulate matter is saturated with air or other gas by a dynamic mixer and ejected into a gravity filter system at a point above the filter media but below the water surface level. Upon entering the filter tank, the dissolved gas is released, forming small bubbles on filterable particles to float these particles to the surface for removal. The system further includes a back pressure valve at the sewage inlet port which, if obstructed, is automatically flushed. During the backwash cycle, the water level above the filter bed may be lowered to the level of a wash-through zone, and filtered water then pumped upward through the filter media, thereby carrying particles from the filter media out through the wash-through zone. | ||||||
| 134 | Flotation process | US48719374 | 1974-07-10 | US3920530A | 1975-11-18 | XYLANDER KURT |
| In a process for purifying an aqueous liquid by flotation of suspended solids with gas bubbles produced by electrolysis between at least one pair of electrodes, at least one of said electrodes, preferably in the form of an endless belt or band, is transported in or through said liquid while said electrolysis and flotation are taking place. Bridging and fouling of the electrodes are thereby minimised.
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| 135 | Flotation device for a fibrous suspension | US31148472 | 1972-12-04 | US3865719A | 1975-02-11 | HOLIK HERBERT; MUELLER KARL |
| A flotation device for the purification of a suspension of fibrous material by flotation suitable for the paper industry, more especially for the deinking of a paper stock suspension is disclosed. In a container which has inlet and outlet apertures and inlet and outlet conduits for the suspension, there is an apparatus for the gas treatment of the suspension in the container and also a device for discharging a foam produced by the gas treatment at the surface of the suspension. For the gas treatment a gas distributor is arranged in the lower portion of the container and has a stationary wall provided with gas throughflow apertures and forming a boundary wall for the suspension. The gas throughflow apertures - as viewed in plan view - being arranged at least over a portion of the base area of the container.
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| 136 | Foam flotation separation system particularly suitable for separating dissolved protein compounds and toxic metallic ions from aquarium water | US3669883D | 1970-08-21 | US3669883A | 1972-06-13 | HUCKSTEDT GUIDO; TUNZE NORBERT |
| Foam flotation separation of dispersoids such as colloids and high molecular weight compounds in dispersions is carried out by drawing the dispersion into a pump which then passes it, as motive fluid, through a venturi to draw in air and effect an air emulsion-type mixture. Thereafter, the mixture passes into a separation column wherein the very small air bubbles in the emulsion are allowed to pass out of the liquid. During the passage through the liquid, dispersoid molecules are adsorbed, in the prior art manner, by the small bubbles, which results in the formation of a dispersoid-containing foam that is removed from the top of the separation column. A substantially dispersoid-free liquid is withdrawn from the lower section of the column. Particularly, the level of toxic compounds in aquarium water is effectively controlled by removing dissolved proteinaceous compounds from the water in this manner.
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| 137 | Froth height and liquid slurry level determination for a floatation cell | US3474902D | 1968-09-26 | US3474902A | 1969-10-28 | PUTMAN RICHARD E J |
| 1287274 Froth flotation WESTINGHOUSE ELECTRIC CORP 3 Sept 1969 [26 Sept 1968] 43653/69 Heading B2H [Also in Division G3] The supply of frothing agent to a floatation separator is automatically controlled in dependence on a computation of the thickness of the layer of froth on the liquid from signals corresponding to contact of a moving probe with the upper and lower surfaces of the layer. In Fig. 1, the electrical probe 16 is withdrawn and reinserted periodically by an electric motor 22 and the thickness is determined by a computer 36 which regulates the supply of frothing agent (e.g. pine oil) at 24 to maintain the thickness constant. Computer 36 also controls an outlet valve 33 to maintain the slurry at such a level that only froth, with the separated minerals, overflows a weir at 15. Probe 16 may be cleaned between insertions. In a modification, a number of cells are mounted on an adjustable ramp so that froth cascades from cell to cell. The froth thickness and slurry level are controlled in each of a number of cells sequentially by a computer which also controls the outlet of slurry from the lowest cell to correct the slurry level in it, and the slope of the ramp to maintain a desired relationship between the slury levels in all the cells. | ||||||
| 138 | Installations for the purification of liquids | US3433359D | 1968-01-18 | US3433359A | 1969-03-18 | LUNDIN ERIC GUSTAF; RUBIN ERNST ARNE |
| 139 | Flotation unit | US22569262 | 1962-09-24 | US3175687A | 1965-03-30 | JONES WARREN H |
| 1,010,874. Aerating liquids; froth flotation apparatus. KOMLINE-SANDERSON ENGINEERING CORPORATION. Sept. 10, 1963 [Sept. 24, 1962], No. 35732/63. Headings B1C and B2H. In froth-flotation apparatus wherein a pressurized solution of air in water is supplied into the influent in a conventional flotation tank F and comprising a retention tank R for continuously forming the solution, the tank R having an outlet 28 in communication via a valve 30 and manifold 14 with the tank F, air and water are constantly supplied under greater than atmospheric pressure into the tank R through a manifold 57 and pump 52 and through an air conduit 60 respectively so as to maintain a cushion 58, Fig. 4, of undissolved air at greater than atmospheric pressure in the tank R above the water. Air from the cushion 58 is drawn for recirculation and greater dissolution in the water through an inductor tube 76 communicating with a constriction 74<SP>1</SP> in the discharge end 72 of a conduit 68 provided adjacent its intake 70 with a pump 74, Fig. 1. The water drawn into the manifold 57 constitutes part of the effluent from the tank F, which has an adjustable weir 22. The water in the tank R is kept within set limits by electrodes 62, 63 which control the discharge of excess air along a passage 66. The tank R is in further communication with the tank F via conduits 36 each of which is provided within the tank F with conventional diffusion heads 34. The sludge P from the influent is removed by conventional skimming apparatus S. | ||||||
| 140 | Diffuser tube | US24685451 | 1951-09-15 | US2947525A | 1960-08-02 | KLEIN JOSEPH J |
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