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| Number | Title | Issue Date |
| 7481318 | Apparatus and process for coalescing bitumen in an oil sand slurry An aqueous aerated oil sand slurry is conditioned in a pipeline and then spun within an elongate vessel of circular cross-section, to cause bitumen droplets in the slurry to coalesce. This increases the probability that the droplets will become aerated by contact wi... | 01/27/2009 |
| 7404492 | Separation of fibre pulp suspensions containing relatively heavy contaminants A hydrocyclone unit for separating a fibre pulp suspension containing relatively heavy contaminants has an elongate tapering separation chamber, an inlet member that feeds the suspension tangentially into the separation chamber at a base end, so as to form a vortex ... | 07/29/2008 |
| 7314560 | Cyclone separator The present invention provides a cyclone separator made up of a cyclone portion for generating an eddy flow at a given flow rate by feeding a liquid containing a fine substance from liquid discharge passageways, for transferring the fine substance to an outer circum... | 01/01/2008 |
| 7309445 | Transferring slurry from a vessel Apparatus for transferring slurry from a vessel having a plurality of slurry collection points. The apparatus includes a manifold having a plurality of inlets in flow communication with one or more outlets and a plurality of pressure-reducing cyclones. Each cyclone ... | 12/18/2007 |
| 7294226 | Method of removing high density stickies from secondary papermaking fibers A hybrid method for processing papermaking fibers to remove high density stickies typically includes utilizing a multistage array of forward cleaners coupled with a flotation cell which increases overall efficiency of the system. In a preferred embodiment, a first r... | 11/13/2007 |
| 7291268 | Hydrocyclone bundle A hydrocyclone bundle comprising a plurality of hydrocyclone liners and a plate assembly for use in liquid-liquid separation is disclosed. The hydrocyclone bundle may be used in new or existing separators. The hydrocyclone liners may be oppositely positioned within ... | 11/06/2007 |
| 7214257 | Plant for cleaning and degassing a fibrous suspension Plant and process for cleaning and degassing a fibrous suspension. The plant includes a plurality of hydrocyclones, in which each hydrocyclone includes an intake connection, an accepts connection, and a rejects connection and at least two supply lines for feeding li... | 05/08/2007 |
| 7159723 | Cyclone separator A cyclone separator including an initial cyclone arrangement (1) arranged first in relation to a flow direction (18) through the separator; a second cyclone arrangement (2) connected in series with the initial cyclone arrangement; a bypass chann... | 01/09/2007 |
| 7101418 | Method and device for degassing a suspension, specifically a fiber stock suspension The invention relates to a method and a device for degassing of suspension, specifically fiber stock suspension. The method according to the invention is characterized in that separated excess suspension is discharged sideways through an overflow having an overflow ... | 09/05/2006 |
| 6960887 | Method and apparatus for tuning a plasma reactor chamber A plasma reactor or vacuum processing apparatus is provided with an orifice plate assembly. The orifice plate assembly includes an upper plate and a lower plate. Each plate is configured with through holes. The upper and lower orifice plates are independently rotata... | 11/01/2005 |
| 6918494 | Hydrocyclone separator packaging An arrangement of hydrocyclones, resulting in a greater density of hydrocyclones packaged in a given volume. One or more overflow extensions is secured to the overflow portions of one or more hydrocyclones to permit individual hydrocyclones to be placed into an axia... | 07/19/2005 |
| 6800208 | Hydrocyclone bundle A hydrocyclone bundle comprising a plurality of hydrocyclone liners and a plate assembly for use in liquid-liquid separation is disclosed. The hydrocyclone bundle may be used in new or existing separators. The hydrocyclone liners may be oppositely positioned within ... | 10/05/2004 |
| 6615988 | Connection device for connecting a hydrocyclone Connection device and process for connecting a hydrocyclone to a distribution and collection device, in which distribution and collection device includes connection openings for addition or removal of liquid during operation of the hydrocyclone. Connectio... | 09/09/2003 |
| 6599434 | Fine coal recovering process A process and system for recovering fine coal having a size at or below 400 mesh. The process and system includes a series of cyclone separators, a vibrating screen, a centrifuge and a flow path to clean, recover and dewater fine coal having a nominal siz... | 07/29/2003 |
| 6508366 | Hydrocyclone device for cleaning a fluid Hydrocyclone device including at least one hydrocyclone having at least one feeding connector, at least one accepted stock connector, and at least one rejected stock connector. The device also includes at least one distribution and collection device arran... | 01/21/2003 |
| 6416632 | Apparatus for degassing an aqueous suspension containing pulp fibers An apparatus for degassing an aqueous suspension containing pulp fibres, the apparatus comprising an elongated horizontal reservoir and a bypass manifold extending into the reservoir. The bypass manifold is placed inside the reservoir such that it it posi... | 07/09/2002 |
| 6416622 | Hybrid multistage forward cleaner system with flotation cell A hybrid system for processing papermaking fibers includes a multistage array of forward cleaners coupled with a flotation cell which increases overall efficiency of the system. In a typical embodiment, a first rejects aqueous stream from a first stage ba... | 07/09/2002 |
| 6409880 | Apparatus and process for removing fine impurities from a fibrous suspension Process and apparatus for removing fine impurities from a fibrous suspension. The process and apparatus each provide for conveying the fibrous suspension to at least one sorting device, separating the fibrous suspension using the at least one sorting devi... | 06/25/2002 |
| 6398969 | Hydrocyclone and process for removing foreign substances from a liquid Hydrocyclone and process for removing foreign substances from a liquid to be cleaned. The hydrocyclone includes at least one inlet for the liquid to be cleaned, at least one accepted stock outlet for the cleaned liquid, and at least one reject opening for... | 06/04/2002 |
| 6398973 | Cyclone separator A cyclone separator has an inlet chamber 52 and an outlet chamber 53, means 51 for introducing a fluid mixture into the inlet chamber so that it swirls around the chamber and passes to the outlet chamber in which it swirls about an outlet chamber axis, th... | 06/04/2002 |
| 6391153 | Process and apparatus for the production of cellulose pulps of improved quality A process and apparatus for the preparation of improved cellulose pulps is provided, in which defibered pulp is screened for removal of shives, and fibers with low bonding ability are removed in hydrocyclones, and rejects from the hydrocyclones are treate... | 05/21/2002 |
| 6277239 | Process for removing fine impurities from a fibrous suspension Apparatus for removing fine impurities from a fibrous suspension comprises a dissolution device, a pre-purification device, a wet straining device, and at least one flotation device. The wet straining device comprises at least two sorting devices present ... | 08/21/2001 |
| 6248207 | Separation of solids from aqueous suspensions containing cellulosic fibers and fines Cellulosic fines and cellulosic fibers are separated from a suspension containing the fines, the fibers and hydrophobic materials by screening the suspension to remove the fibers, and then subjecting the resultant filtrate to dispersed air flotation in th... | 06/19/2001 |
| 6238579 | Device for separating solid particles in a fluid stream The present invention provides for discharge (exit) ports for exit fluid flow disposed at or adjacent to one another on one end of a vortex separating body; an inlet port(s) disposed at one end of a separating body having discharge (exit) ports for exit f... | 05/29/2001 |
| 6190543 | Cyclonic separator A cyclonic separator for separating fluids of differing densities comprises a first chamber having a vortex finder and a core member. The vane is arranged co-axial with and adjacent the internal surface of the vortex finder to increase the rotational velo... | 02/20/2001 |
| 6129217 | Hydrocyclone and separator assemblies utilizing hydrocyclones Hydrocyclones for use in separator assemblies, which have stationary wall members or at least one removable wall member and contain a plurality of hydrocyclones, include a tubular body having an under flow end and an overflow end. The hydrocyclone has an ... | 10/10/2000 |
| 6096120 | Deaeration vessel An improved double acting deaeration vessel is most desirably used in the pulp and paper industry. The deaeration vessel removes gas from a fiber suspension without requiring fine adjustment of the final consistency of the suspension fed to the deaeration... | 08/01/2000 |
| 5980639 | Hydrocyclones and associated separator assemblies Hydrocyclones and separator assemblies a wherein the hydrocyclones installed in the separator assemblies by a push fit and are under no lateral tensile or compressive stress. The body has an interior defined by an axially-extending frusto-conical separati... | 11/09/1999 |
| 5965022 | Cyclone separator assembly A cyclone separator assembly comprising a pressure vessel divided internally by first and second generally parallel dividing plates to define an overflow chamber, an underflow chamber, and an inlet chamber intermediate the overflow and underflow chambers,... | 10/12/1999 |
| 5965021 | Hydrocyclone There is provided a hydrocyclone which operates on a relatively low pressure differential and on a linear flow principle. The hydrocyclone comprises an inlet chamber with a vortex creating a spiral insert therein, which inlet chamber opens in to a frustoc... | 10/12/1999 |
| 5776304 | Method and apparatus for treating filler-containing material, such as recycled fibers Recycled fiber pulp from a vortex cleaning plant (e.g. connected to the short circulation of a paper machine) effects the recovery and return of fillers in the recycled fiber pulp discharged from the vortex cleaning plant, in an efficient and economical m... | 07/07/1998 |
| 5728262 | Method and apparatus for removing neutral buoyancy contaminants from acellulosic pulp An asymmetric hydrocyclone is modified and controlled so as to effectively remove contaminants of substantially neutral buoyancy from a paper cellulosic pulp. More specifically, a method includes prepositioning a substantially frusto-conically-shaped sepa... | 03/17/1998 |
| 5582727 | Apparatus for cleaning drilling mud An apparatus and method for cleaning, desanding, and desilting drilling mud which contains unwanted solids utilizes an enclosure divided into a plurality of compartments connected with a system of vibratory screen shaker separators, desanders, and desilte... | 12/10/1996 |
| 5518616 | Plant for the separation at high temperature of contaminants of various types from plastic material in small pieces or leaves A plant for the separation at high temperatures of contaminants from plastic material in small pieces or in leaves, including at least one stage (2) for the separation of contaminants, which in turn includes a centrifugal separator device designed to sepa... | 05/21/1996 |
| 5499720 | Multiple hydrocyclone assembly A multiple hydrocyclone assembly includes a closed tubular vertical housing enclosing two concentric vertical cylinders which cooperate with the housing to define an inner cylindrical outlet chamber and concentric annular inlet and outer outlet chambers. ... | 03/19/1996 |
| 5492622 | Water clarification apparatus An apparatus and method for clarifying a contaminated fluid comprising a separator vessel having therein a pair of cyclonic flow chambers; preliminary spiral separators introduce the contaminated fluid to be separated into the cyclonic flow chambers by ta... | 02/20/1996 |
| 5447632 | Hydrocyclone plant In a hydrocyclone plant for treating fibre suspensions comprising a multiplicity of hydrocyclone bodies (1) each hydrocyclone body is mounted in a hole in a wall (5) and is sealed to the wall with the aid of a sealing ring (18). According to the invention... | 09/05/1995 |
| 5388708 | Multiple hydrocyclone assembly A multiple hydrocyclone assembly includes a closed tubular vertical housing enclosing two concentric vertical cylinders which cooperate with the housing to define an inner cylindrical outlet chamber and concentric annular inlet and outer outlet chambers. ... | 02/14/1995 |
| 5337899 | Hydrocyclone plant A hydrocyclone plant comprises a multiplicity of hydrocyclones arranged in groups of at least two hydrocyclones, each group being made in a single piece. The hydrocyclones extend substantially radially in an annular space for a liquid mixture to be separa... | 08/16/1994 |
| 5336410 | Three chamber vessel for hydrocyclone separator The present invention relates to a hydrocyclone apparatus which is simple in design, more space efficient, and easier to maintain than prior art designs. The invention comprises a three chamber vessel wherein the inlet chamber is between the outlet and ov... | 08/09/1994 |
