Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21D - Treatment of the materials before passing to the paper-making machine › D21D 5 - Purification of the pulp suspension by mechanical means; Apparatus therefor
Patents for D21D 5 - Purification of the pulp suspension by mechanical means; Apparatus therefor (4,157)
01/2000
01/26/2000EP0801696B1 Screening arrangement
01/26/2000EP0793750B1 Apparatus and process for screening a fibre suspension and process for producing paper utilizing the same
01/12/2000EP0971067A1 Device for seperating solid particles out of a suspension existing substantially of liquid
01/12/2000EP0970276A2 Screen
01/04/2000US6010012 Fluidizing detrashing impeller
01/04/2000CA2018175C Pulper
12/1999
12/30/1999DE19826879A1 Verfahren und Behälter zum Stapeln von hochkonsistentem Papierfaserstoff Method and container stacking high-consistency paper pulp
12/29/1999CN2355810Y Adjustable high efficiency slag remover
12/22/1999EP0965682A1 Method and container for stacking high consistency pulp
12/21/1999US6004364 Separation device
12/21/1999US6003683 Forward or reverse hydrocyclone systems and methods
12/21/1999US6003682 Bar screen drive system
12/21/1999CA2210877C Fibre suspension pressure sorting machine and sieve for such pressure sorting machines
12/16/1999WO1999064664A1 Screen cylinder stress concentration relief
12/16/1999DE19825669A1 Siebapparat für eine verschmutzte Faserstoffsuspension Sifter for a dirty pulp suspension
12/16/1999CA2334572A1 Screen cylinder stress concentration relief
12/15/1999EP0964097A1 Screening device for dirty fibre suspension
12/15/1999CN1238401A Method and apparatus for screening waste paper pulp
12/08/1999EP0961852A1 Pump for fibrous pulp suspension with means for separating gas from the suspension
12/07/1999CA2138371C Pressure sorter for fibre suspensions
12/02/1999WO1999061699A1 Method and device for flotation of pollutants from an aqueous fibrous material suspension
12/02/1999WO1999061697A1 Screen media and a screening passage therefor
12/02/1999CA2333570A1 Screen media and a screening passage therefor
12/01/1999EP0868565B1 Apparatus for processing fibre suspensions used for the production of paper or cardboard
11/1999
11/24/1999EP0958433A1 Deaeration vessel
11/24/1999EP0958432A1 Method of manufacturing a wire screen product and a wire screen product
11/24/1999EP0958431A1 Screen cylinder
11/24/1999EP0958430A1 Improved recovery of fine fibers from suspensions containing fibers and contaminants
11/24/1999EP0958429A1 Process and apparatus for controlling the purification and yield of fibers from a fiber suspension
11/18/1999WO1999058760A1 Device for sorting a suspension containing fibrous material
11/18/1999DE19821447A1 Assembly to sort fiber suspensions for paper making pulp
11/17/1999CN2349244Y Circular seam screening drum
11/16/1999US5985159 Impervious friction surface pressed against suspension web formed on fluid permeable surface through which a suction is drawn to dewater suspension whereby the two surfaces move relative to each other to shear and roll suspension particles
11/10/1999EP0955406A2 Method and apparatus for screening fibrous suspension
11/10/1999EP0777781B1 A pulp slurry-handling press roll, and twin roll and single roll slurry-handling presses
11/09/1999US5979664 Methods and apparatus for acoustic fiber fractionation
11/04/1999DE19819110A1 Improving overall efficiency of fibrous suspension wet sieving
10/1999
10/26/1999US5971160 Fibresaver screen basket support
10/21/1999WO1999053137A1 Method of determining a volumetric percentage of air in a fiber suspension in a paper-making machine
10/21/1999CA2291625A1 Method of determining a volumetric percentage of air in a fiber suspension in a paper-making machine
10/20/1999EP0950754A1 Screen apparatus
10/20/1999CN1232103A Screen apparatus
10/19/1999US5968357 Screen basket having a removable and replaceable cylindrical mesh liner
10/19/1999US5968315 Process and apparatus for screening a fibre suspension in a pressurized screen having a rotating screen-drum
10/19/1999US5967335 Screening device for screening a suspension
10/14/1999WO1999052197A1 Integrated paper pulp and process machinery having integrated drive and control and methods of use thereof
10/14/1999DE19823053C1 Hand-operated sludge removal pump for garden ponds
10/14/1999DE19815449A1 Sieve for sorting used paper fiber suspensions
10/14/1999DE19802493C1 Verfahren zur Entfernung von Verunreinigungen aus einer Altpapier-Faserstoffsuspension A process for removing impurities from a paper-pulp suspension
10/14/1999CA2327613A1 Integrated paper pulp and process machinery having integrated drive and control and methods of use thereof
10/13/1999EP0697920B1 Screening apparatus with adjustable hydrofoil portion
10/13/1999CN2343191Y Sand removing pump for paper pulp
10/12/1999CA2146093C Centrifugal cleaner
10/12/1999CA2058474C Centrifugal cleaner
10/07/1999WO1999050019A1 Wedgewire pressure screen and method for making same
10/07/1999CA2326325A1 Wedgewire pressure screen and method for making same
10/06/1999EP0946821A1 Fractionation process for cellulosic fibers
10/06/1999EP0946247A1 Zoned pressure screen
10/06/1999CN2342007Y Screw groove slag remover
10/05/1999US5960962 Screen
10/05/1999US5960500 Stock washer for washing, thickening and classifying solids
10/05/1999CA2003088C Screening device
09/1999
09/29/1999EP0799347B1 Separating arrangement
09/29/1999CN1229687A Improved mechanical strainer for fibrous suspensions
09/22/1999CN1229447A Screening device, such as screen cylinder, and method of manufacture of screen device
09/21/1999US5954956 Modular screen cylinder and a method for its manufacture
09/21/1999CA2106211C Method of detecting foreign matter in pulp suspension and device for detecting the same
09/16/1999WO1999046442A1 Method and apparatus for treatment of fiber suspension containing minerals, such as coated broke, in paper production
09/16/1999DE19810649A1 Waste paper cleaning, screening, breakdown and pulping drum
09/14/1999USRE36297 Method and apparatus for treating a fiber suspension
09/14/1999CA2148939C Adjustable hydrocyclone
09/14/1999CA2117368C Separation device and process
09/10/1999WO1999045193A1 Screen device comprising two screen chambers for separating fibre suspensions
09/10/1999WO1999035331A3 Solid bowl centrifuge for mixtures, especially for fibrous material suspensions used in the paper industry
09/08/1999EP0774022B1 Method and apparatus for screening a fiber suspension
09/08/1999CN2337179Y Double-screw black liquor extractor
09/08/1999CN2337178Y De-inking machine
08/1999
08/26/1999WO1999042223A1 Screen cylinder with high percent open area
08/26/1999CA2322044A1 Screen cylinder with high percent open area
08/25/1999CN1226846A Through-flow cleaner with improved inlet section
08/18/1999EP0936300A1 Method for cleaning and feeding a suspension
08/17/1999US5938926 Extended dwell reverse hydrocyclone cleaner
08/12/1999WO1999040253A1 Pressure screen with scrap separation
08/10/1999US5935053 Fractionator
08/10/1999US5934484 Channeling dam for centrifugal cleaner
08/05/1999WO1999039047A1 Apparatus for degassing an aqueous suspension containing pulp fibres
08/05/1999WO1999039046A1 A cylindrical screen and a method of manufacturing it
08/05/1999CA2319151A1 A cylindrical screen and a method of manufacturing it
08/04/1999EP0933469A2 Vibratory cleaner
08/04/1999EP0933468A2 Method and apparatus for screening waste paper pulp
08/03/1999CA2260652A1 Method and apparatus for screening waste paper pulp
07/1999
07/30/1999CA2260550A1 Vibratory cleaner
07/28/1999EP0931875A1 Improved mechanical strainer for fibrous suspension
07/28/1999EP0931873A1 Process for removing contaminants from a fibre suspension
07/28/1999EP0931872A1 Process for removing fine contaminants from a fibre suspension
07/27/1999CA2018177C Pressurized screening device
07/22/1999WO1999036612A1 A process and apparatus for the production of cellulose pulps of improved quality
07/22/1999CA2258467A1 Improved mechanical strainer for fibrous suspensions
07/21/1999EP0929714A1 Screening device, such as a screen cylinder, and method of manufacture of the screening device
07/21/1999EP0721528B1 Fractionator
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