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)
11/1998
11/12/1998WO1998050624A1 Method and arrangement for controlling a multi-phase screening apparatus
11/12/1998DE19719482A1 Sieve for fibre suspensions
11/12/1998CA2289211A1 Method and arrangement for controlling a multi-phase screening apparatus
11/11/1998CN1198787A Cleaner with inverted hydrocyclone
11/05/1998WO1998049392A1 Barrier for dewatering fibrous suspensions
11/04/1998EP0874936A1 Method and plant for treating a contaminated pulp suspension
11/04/1998CN2296356Y Water power automatic concentrator
10/1998
10/29/1998WO1998048103A1 Screen plate for screening of a pulp suspension and method to separate the same
10/29/1998WO1998047622A1 Channeling dam for centrifugal cleaner
10/29/1998CA2287003A1 Channeling dam for centrifugal cleaner
10/22/1998WO1998046822A1 Screening apparatus with reject flow restriction means
10/22/1998WO1998046821A1 Screening apparatus with dilution liquid supply means
10/21/1998EP0741817B1 Method and apparatus for treating recycled pulp
10/20/1998US5823355 Fibresaver screen basket support
10/15/1998WO1998045532A1 Separation device
10/14/1998EP0870084A1 A method and a plant for treating of a contaminated pulp suspension
10/14/1998EP0735913B1 Apparatus and process for pumping and separating a mixture of gas and liquid
10/14/1998CN1196101A Pump for fibrous pulp suspension with means for separating gas from suspension
10/14/1998CN1196000A Extended dwell reverse hydrocyclone cleaner
10/07/1998EP0869218A1 Magnetic removal of"stickies"from waste papers
10/07/1998EP0868565A1 Apparatus for processing fibre suspensions used for the production of paper or cardboard
10/07/1998EP0868564A1 Screening arrangement
10/07/1998CN1195302A Forward or reverse hydrocyclone systems and methods
10/04/1998CA2201801A1 Magnetic removal of "stickies" from waste papers
10/01/1998DE19712301A1 Paper fibre suspension sieve
09/1998
09/30/1998EP0649347B1 A cyclone separator
09/26/1998CA2232887A1 Ink removal from paper machine feed systems
09/23/1998EP0865484A1 Novel xylanase composition and method for production thereof
09/17/1998DE19806734A1 Flotation cleaning of fibre suspensions especially for processing used paper materials, for recycling
09/16/1998EP0863784A1 Extended dwell reverse hydrocyclone cleaner
09/15/1998US5806684 Fractionator for fractioning particulates in suspension
09/08/1998US5804075 Papermaking screen having first and second annular supports with immovable space holding and parallel elongated member extending there between
09/08/1998US5803270 Methods and apparatus for acoustic fiber fractionation
09/02/1998CN2289822Y Multifunction disintegrating mill
09/02/1998CN1192254A Multiple contour screening
09/01/1998US5799798 Screen cylinder for screening high consistency pulp
08/1998
08/25/1998US5798025 Apparatus for screening waste paper pulp
08/11/1998US5791495 Paper pulp screen cylinder
08/11/1998US5791491 Apparatus and method for extracting impurities from a pulpous slurry
07/1998
07/23/1998DE19702043A1 Fibre suspension cleaning assembly
07/22/1998EP0853701A1 Cleaner with inverted hydrocyclone
07/21/1998CA2081855C Screen
07/15/1998EP0852637A1 Sorting device
07/09/1998WO1998029599A1 A cylindrical screen and a method of producing the same
07/09/1998CA2241945A1 A cylindrical screen and a method of producing the same
07/08/1998EP0697920A4 Screening apparatus with adjustable hydrofoil portion
07/07/1998US5776304 Method and apparatus for treating filler-containing material, such as recycled fibers
07/01/1998EP0850699A2 Bar screen drive system
06/1998
06/30/1998US5771718 Concentrated washing machine
06/26/1998CA2225695A1 Bar screen drive system
06/25/1998WO1998027278A1 Fractionation process for cellulosic fibers
06/25/1998WO1998026874A1 Reducing wax content and enhancing quality of recycled pulp from occ and waste paper
06/25/1998CA2274027A1 Reducing wax content and enhancing quality of recycled pulp from occ and waste paper
06/25/1998CA2273285A1 Fractionation process for cellulosic fibers
06/24/1998CN1185824A Pump for conveying a moist pulp
06/23/1998US5769243 Through-flow cleaner with improved inlet section
06/23/1998US5768783 Method for fabricating a flat or centripetal wire
06/18/1998DE19651643A1 Sieve for sorting out suspended fibres
06/16/1998US5766448 Pressure screening system for processing contaminated pulp fiber
06/09/1998US5762760 Reactor for treating pulp with a gas
06/03/1998CN1183818A Sealing device
05/1998
05/22/1998WO1998020958A1 Zoned pressure screen
05/20/1998EP0842322A1 Multiple contour screening
05/13/1998CN1181795A Process for recovering raw materials from a flow of residual or collected materials during paper manufacture and plant therefor
05/07/1998WO1998018559A1 Method and apparatus for treating pulp
05/06/1998EP0839227A1 Screen and method of manufacture
05/06/1998EP0839226A1 Method and device for treating a pulp suspension
05/05/1998US5746890 Device for admixing a processing agent into a pulp suspension
05/05/1998CA2061290C Sifting drum
04/1998
04/22/1998EP0837178A1 Process for making screens and screen obtained by this method
04/22/1998EP0836658A1 Sealing device
04/16/1998DE19702044C1 Sieve assembly for papermaking fibre suspension
04/09/1998WO1998014658A1 Screening device, such as a screen cylinder, and method of manufacture of the screening device
04/07/1998US5735472 Rotating drum comprising screening and mashing chambers for separating paper fibers and contaminants
04/01/1998EP0673454B1 Apparatus for filtering suspensions
03/1998
03/31/1998US5733413 Method for removing contaminates from aqueous paper pulp
03/31/1998CA2133630C Method and apparatus for screening waste paper pulp
03/19/1998WO1998011297A1 A method and a plant for treating of a contaminated pulp suspension
03/19/1998WO1998011296A1 Method and plant for treating a contaminated pulp suspension
03/19/1998CA2235384A1 A method and a plant for treating of a contaminated pulp suspension
03/19/1998CA2233193A1 Method and plant for treating a contaminated pulp suspension
03/17/1998US5728262 Treatment of pulp in paper recycling process, assymetric hydrocyclone
03/17/1998US5727316 Method of manufacturing a screen cylinder and a screen cylinder produced by the method
03/10/1998US5725104 Valve construction for high density pulp cleaner
03/05/1998DE19635856A1 Suspension flow control element with control fluid supply
03/04/1998EP0742855B1 Apparatus for treating pulp
02/1998
02/19/1998WO1998006893A1 Screen panel and method of its manufacture
02/19/1998WO1998001616A3 Stock washer for washing, thickening and classifying solids
02/19/1998CA2262978A1 Screen panel and method of its manufacture
02/17/1998US5718826 Screen and method of manufacture
02/05/1998WO1998004356A1 Through-flow cleaner with improved inlet section
01/1998
01/28/1998EP0820563A2 Pump for conveying a moist pulp
01/28/1998EP0820354A1 Wood chip screening apparatus with blades having nonlinear top edges
01/27/1998US5711789 Apparatus for pumping gas-containing fiber suspensions
01/27/1998US5711600 High consistency pulp tower with a parting member and the introduction of dilution liquid
01/20/1998CA2089078C Method and apparatus for stabilizing and simplifying an approach flow system for a paper-making machine
01/15/1998WO1998001616A2 Stock washer for washing, thickening and classifying solids
01/15/1998CA2255833A1 Stock washer for washing, thickening and classifying solids
01/14/1998EP0735918B1 Device for admixing a processing agent to a pulp suspension
01/13/1998US5707488 Screen/vortex apparatus for cleaning recycled pulp related process
1 ... 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ... 42