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WO/1995/002442A1 |
The present invention relates to a method and apparatus for thickening lime mud with a disc filter. The invention also relates to a method of cleaning the filter sectors (12) of a disc filter. The method and apparatus according to the in...
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WO/1995/001216A1 |
Apparatus for separating liquid and solid material has an auger having an auger screw and a tubular housing extending around the auger screw, the tubular housing having an opening in the top thereof to allow the solid material to be depo...
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WO/1994/029230A1 |
The object of the invention is a method and apparatus for drying sludges, in which the sludge (6) is first of all poured into a mass filter (1) on top of a filter material (2). Here it is permitted to precipitate as a stiff sludge, which...
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WO/1994/026086A2 |
A pellet formed from a mix of two polymer materials which are non-homogenous is extruded through a die to form a highly roughened surface creating an enhanced melt fracture appearance. The extrusion is chopped into pellet form to provide...
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WO/1994/025140A1 |
A rotating filter including a container (11) for a liquid or suspension to be filtered and a rotor structure (17, 21, 22, 25, 26) being provided at its outer periphery with a filter medium arranged in the shape of at least one circular r...
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WO/1994/023821A1 |
The present invention relates to a method and an apparatus for cleaning a filter drum or a cylinder used for thickening lime mud in which filter drum lime mud is thickened on a filtering layer of lime mud formed on the surface of a filte...
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WO/1994/022547A1 |
A suspension is delivered to a filter bed comprised of granular filter medium in a continuously working filter at the lower part of the bed and is then permitted to flow upwards through the bed. With the intention of optimizing the capac...
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WO/1994/021561A1 |
A water treatment plant has at least one vertical stack of dissolved air flotation clarifiers (114 and 116). Raw water is directed to a single stage clarifier with a shallow tank (114). Its output is fed to an underlying two stage clarif...
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WO/1994/021353A1 |
Colloidal matter is removed from a fluid flow (122) by first adsorbing a coagulant (162) onto the surface of a finely divided filter media (126), and thereafter passing a colloid-containing fluid (122) through the filter media (126). The...
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WO/1994/019085A1 |
A filter (10) for fluids includes a pair of layers (12, 14) or multiple layers or pairs of materials joined together to form a laminate having a fluid contacting surface (16). A plurality of spaced pockets (18) is formed between the laye...
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WO/1994/017892A1 |
A slurry is subjected to a filtration and washing process in order to separate the liquor from the solids. The filtration and washing process is carried out in a housing (101) enclosing an inert gaseous atmosphere which also passes throu...
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WO/1994/015694A1 |
Method and device for removing liquid on a gauze conveyor, use being made of means under the gauze conveyor which provide for extraction of the liquid directly under the gauze conveyor. The means preferably comprise a hollow, serrated ro...
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WO/1994/014516A1 |
The object of the invention is a flush water outlet valve intended for the cleaning of filter materials in a water purification basin, which flush water outlet valve consists of a fixed lower tube (11) and a movable upper tube (10), over...
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WO/1994/013381A1 |
The invention relates to a slow sand filter comprising in the embodiment a layer of granular activated carbon (3) sandwiched between two layers (4) and (5) of sand.
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WO/1994/012261A1 |
A suction head (15) arranged between a filtrate channel (13) and a barometric leg (16') of a rotating filter having at least one filter means (10, 11) communicating with the filtrate channel (13). The filtrate channel (13) is connected t...
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WO/1994/011082A1 |
A filter includes a cylindrical filter element (10) having a longitudinal axis, first and second end surfaces, and a plurality of longitudinal pleats (11). Each of the pleats has a pair of legs with first and second surfaces. The pleats ...
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WO/1994/009881A1 |
A filter apparatus for filtering machine tool coolant is disclosed as including a disc filter assembly (24') including a hollow rotatable mandrel (100) having perforations (102) and a plurality of removable hollow disc filter element (88...
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WO/1994/008693A1 |
Filter auxiliaries (11) are cleaned of organic deposits are cleaned by putting the uncleaned filter auxiliaries (11) into suspension followed by acoustic irradiation to release the deposits (9) and break them down into smaller fractions....
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WO/1994/004244A1 |
A loading control system (12) for a cyclical centrifugal machine (10) operates with a rotary cylindrical basket (14) and a loading gate member (23) to control delivery of charge material into the basket (14) and includes controls (4-6) f...
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WO/1994/004245A1 |
The invention relates to a filter jug of the type which includes a water filter medium. The invention aims to provide such a jug which is efficient in use and from which the filter medium can be disposed in an environmentally acceptable ...
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WO/1994/003254A1 |
A treatment device such as a filter device, containing a treatment bed (2) of particulate treatment medium. A fluidising unit (9) associated with the treatment medium particles, for removing the treatment medium particles from the treatm...
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WO/1994/003255A1 |
A filter underdrain module (52) for an underdrain system (30) for a granular media filter. The module is an elongated, integrally constructed, self-contained unit having an enclosed interior and having a substantially flat, substantially...
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WO/1994/003250A1 |
Process for removing bottoms or isolating useful products from a liquid mixture which in addition to, e.g., water contains solid matter, in which process the mixture is passed through a packed filter bed in a vessel, characterized in tha...
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WO/1994/003401A1 |
A method of and apparatus for treating waste water wherein waste water to be treated is passed along a tortuous path (17), preferably comprising alternate layers of an inert material, such as, sand, stainless steel balls or stones, and a...
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WO/1994/002230A1 |
A system for separating an air-liquid mixture in a low gravity environment is disclosed having a high-speed separator (14) to initially process the air-liquid mixture. A second, low-speed separator (24) has its inlet (22) connected to th...
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WO/1994/001194A1 |
A deep bed upflow filter (10) for removing suspended solids from an influent stream to provide a clean filtrate, comprising an upright vessel (12) having a vertical axis (14), top and bottom ends (16, 18) and contiguous upper (20), lower...
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WO/1993/023335A1 |
A clarifier (10) with first stage flotation and second stage filtration divides at least the lower portion of a flotation tank (12) into independent cells (54). A branched conduit (78) collects clarified water. Valves (76) control the fl...
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WO/1993/023140A1 |
In a rotatable filter, such as a disk filter, for separating solid particles from a liquid mixture, in which a filter material (3) is partially immersed, a cake-removal member (11) is designed to take off a layer of the formed cake of so...
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WO/1993/015821A1 |
A liquid filtration apparatus comprises a filter body (1) housing a filter module (3) and having an inlet port (6) for the liquid to be filtered and an outlet port (10) for the filtered liquid. The filter module (3) consists of a compact...
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WO/1993/015819A1 |
Described is a filter for plastic melts containing impurities, the filter having a housing (1) in which a cylindrical or conical filter element (3) is mounted so that it can be rotated by a drive shaft (6) about its longitudinal axis (4)...
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WO/1993/014856A1 |
An apparatus is disclosed for filtering slurries of minerals or other fine particles. The apparatus includes a ceramic filter plate (8) having a porous filtration layer with a filtration surface (14) overlying a support layer. The appara...
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WO/1993/014855A1 |
A method for filtering an aqueous mineral slurry through a ceramic filter plate (8) is disclosed. The method includes applying a suction across the filter plate (8) to form a cake (22) thereon. The filter plate (8) and cake (22) are remo...
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WO/1993/014857A1 |
A method for filtering an aqueous mineral slurry through a filter plate (8) having a porous support layer and an overlying microporous metal filtration layer is disclosed. The method includes applying a suction across the filter plate (8...
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WO/1993/015021A1 |
The invention relates to a liquid treatment method and apparatus for removing impurities from a liquid stream, comprising forming a zone of micro gas bubbles from a source (3) across substantially the whole surface area of a treatment ve...
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WO/1993/014854A1 |
An apparatus is disclosed for filtering slurries of minerals or other fine particles. The apparatus includes a filter plate (8) having a microporous metal filtration layer with a filtration surface (14) overlying a support layer. The app...
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WO/1993/015265A1 |
A suspension containing fine and coarse particles is sprayed under high pressure by means of spray nozzles (10) against a rotating filter medium (7), so that the suspension is separated into a fine fraction, which passes through the filt...
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WO/1993/011850A1 |
A filtering apparatus (10) comprises an endless filter belt (20) which is moved through a tank (14) containing contaminated liquid by a drive means (18). Cleansed liquid is removed from the belt by means of a syphon (16) having a syphon ...
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WO/1993/007950A1 |
The invention relates to a filter element for the filtration of a suspension containing pollutants in which the suspension is arranged for a substantially horizontal flow direction through the filter bed. The filter element comprises at ...
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WO/1993/006907A1 |
An apparatus for filtering and/or treating liquid comprises a chamber (10) having a horizontal screen (14) and a quantity of granules (22) below the screen, the granules having a specific gravity less than unity. Liquid to be filtered an...
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WO/1993/005248A1 |
A separator means for separating problem waste from effluent in connection with a sink hole or equivalent, where along with the effluent to be drained travels problem waste. The separator means comprises a frame (1) suspended in the uppe...
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WO/1993/004762A1 |
In order to avoid clogging of a candle precoated filter by a falling filter cake during residual volume filtration, a partition (5) separates an appropriate filter element (4) arranged in the top part of the filter from the remaining fil...
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WO/1993/004760A1 |
The invention relates to a method and device for filtering a liquid medium, particularly waste water, containing suspended particles and materials. The liquid medium is caused to flow through a filtering agent comprising fragments of an ...
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WO/1993/000977A1 |
A filtrate which has passed a filter bed (2) of granular filter medium intended for treating a suspension or a liquid solution can contain air bubbles and granular filter medium as a result of a gas, preferably air, being brought into co...
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WO/1992/022702A1 |
The invention concerns a drum washer. The washer has two plates (14; 18) located after each other in parallel with the drum, and the pulp to be washed is conducted between these plates. Between the plates there is a gap (22) closed by a ...
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WO/1992/022703A1 |
The invention concerns a drum washer. The washer has a shaft formed by two cones (46) placed with their bases against one another. The shaft can be used as a supporting structure for the drum. Vanes (48) can also be placed on it for assi...
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WO/1992/021422A1 |
It is known to filter a suspension or emulsion in a filter bed of particulate filter medium (1) by allowing the suspension to flow upwards through the filter bed simultaneously as the medium (1) flows downwards through a filtering tank (...
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WO/1992/019356A1 |
The invention relates to a device for removing dirt particles (with and without oil deposits) from water or from dirty water without free oil, especially water remaining after clothing, work clothing and the like has been washed in large...
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WO/1992/018217A1 |
Devices (10), such as filters, catalytic converters and the like, for separating selected substances from a stream of fluid. The device is made of continuums (23A, 24A, 31, 32, 33, ...) made of filter material and arranged so that substa...
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WO/1992/017262A1 |
The invention concerns a filter for liquids, the filter having a detachable housing and filter elements which can be removed and disposed of simply and without any danger of pollution to the environment. In addition, the individual funct...
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WO/1992/016272A2 |
The invention relates to a filter with a filter casing in which there is at least one filter cartridge. In the cartridge casing (42), at least one separating wall (18, 19, 19a) forms at least two filter chambers (3, 4, 5) arranged mutual...
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