Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21D - Treatment of the materials before passing to the paper-making machine › D21D 1 - Methods of beating or refining; Beaters of the hollander type
Patents for D21D 1 - Methods of beating or refining; Beaters of the hollander type (3,356)
07/1991
07/31/1991CN2081851U Full-floatation disc mill for paper pulp with double discs
07/25/1991WO1991010904A1 Acoustic emission monitoring of wood chip refiners
07/24/1991CA2031605A1 Segment for drum refiners and structure provided therewith
07/10/1991CN1013130B Method for producing double gummed paper with full-reed pulp
06/1991
06/12/1991EP0431040A1 A method of treating and a disperger for disintegrating wood pulp, especially containing waste paper.
06/12/1991CN2078763U Reverse-rotation double-acting disc mill
06/05/1991EP0430915A1 Procedure for the production pulp
06/05/1991CN2078338U Assembly of fly-cutting roller for beater
05/1991
05/29/1991CN2077871U Biconic carding machine
05/28/1991CA2030836A1 Procedure for the production of pulp
05/28/1991CA1284436C Disk refiner having sliding rigid multiple disks
05/22/1991EP0427764A1 Stress regulator for pulp grinding apparatus and method
05/21/1991US5016824 Method and apparatus for controlling the production of thermomechanical pulp
05/14/1991WO1991007228A1 Apparatus and method for conjoint adjustment of both the inner and outer grinding spaces of a pulp defibrating apparatus
05/14/1991CA2065269A1 Apparatus and method for conjoint adjustment of both the inner and outer grinding spaces of a pulp defibrating apparatus
04/1991
04/30/1991US5011091 Cellulose fiberization apparatus
04/30/1991US5011090 Regulating input power to feeder to constant level
04/30/1991US5011088 Control method for a chip refiner
04/17/1991EP0423092A2 Procedure for the refining of a pulp mixture or equivalent in a refiner
04/17/1991EP0423091A2 Refiner for the refining of paper pulps and the like
04/17/1991CN2075218U Full-floated single-disc pulp mill
04/16/1991US5007985 Method of reducing the energy consumption at the refining of cellulose containing material
04/10/1991EP0421968A2 Conical refiner
04/03/1991EP0271502B1 Grinding block for a refiner
03/1991
03/26/1991CA1281856C Method of reducing the energy consumption at the refining of cellulose-containing material
03/19/1991US5000824 Polyethylene pulp
03/19/1991US5000823 Method and apparatus for the processing of groundwood pulp to remove coarse particulate lignocellulosic material
03/19/1991CA1281571C Method at the manufacture of mechanical pulp
03/13/1991EP0417063A2 Refiner element pattern achieving successive compression before impact
03/13/1991CN2072989U Fully floating double nether millstone pulp grinder
03/07/1991WO1991002841A1 Refining element and method of manufacturing same
02/1991
02/27/1991EP0413736A1 Method of making mechanical and chemi-mechanical papermaking pulp.
02/27/1991CN1011796B Rigid link multiple disk refiner
02/26/1991US4995988 Method and apparatus for thickening a slurry using a compression plate
02/25/1991CA2064780A1 Refining element and method of manufacturing same
02/13/1991EP0412833A2 Cellulose fiberization process and apparatus
02/13/1991CN1049204A Full floating single millstone
02/13/1991CN1049203A Full-floating double millstone
02/12/1991CA1280019C Method for decreasing the energy consumption during refining of fibre material
02/10/1991CA2009404A1 Cellulose fiberization process and apparatus
02/07/1991WO1991001406A1 Method and apparatus for pressurzied refining of lignocellulose material
02/06/1991EP0252915B1 Method at the manufacture of mechanical pulp
01/1991
01/30/1991EP0318495B1 Apparatus for treatment of fibre suspensions
01/30/1991CN2070314U High concentration pulp mill
01/23/1991CN1048736A Paper made from mixed pulp of grass and synthetic fibre
01/22/1991US4986480 Better properties for given energy input, pulping
01/02/1991EP0406225A2 Method and apparatus for feeding a conical refiner
01/02/1991CN1048228A Grinding disk
01/02/1991CA1278449C Method and apparatus for making paper
12/1990
12/27/1990EP0403849A2 High opacity paper containing expanded fiber and mineral pigment
12/11/1990US4976822 Apparatus for cleaning fibers
12/11/1990US4976819 Wringing, dewatering, compacting
12/05/1990CN2066866U Grinding sheet for fine grinder
12/04/1990CA1277110C Method for cooking control of lignocelluloses by ftir spectroscopy
11/1990
11/29/1990WO1990014462A1 Method and apparatus for cleaning fibers
11/27/1990US4973000 Method and apparatus for determining the contact position in a refiner
11/22/1990DE3916393A1 Mahlgarnitur eins kegelrefiners Beating one kegelrefiners
11/20/1990WO1990014464A1 Grinding equipment for a jordan refiner
11/20/1990US4971658 Method of intensifying the washing of a fiber suspension
11/20/1990CA2033073A1 Grinding equipment for a jordan refiner
11/07/1990CN1010328B Fibre washer
10/1990
10/31/1990CN1046576A Pulp washing apparatus and process
10/30/1990US4966651 Method of paper making using an abrasive refiner for refining bleached thermochemical hardwood pulp
10/02/1990CA1274878A1 Method and device for measuring the distance between the discs of a refiner
09/1990
09/12/1990EP0386031A1 Method and device for indicating the contact position in a refiner.
09/12/1990CN1045285A Process for producing news print and cultural paper by removing the black skin of cotton stem and using whole cotton stem
09/11/1990US4955549 Apparatus for treatment of fibre suspensions
09/07/1990WO1990010109A1 Pulp washing apparatus and process
09/04/1990US4954221 Apparatus for feeding lignocellulose-containing material through a steam screen into a refiner
09/04/1990US4953796 Refiner segment
08/1990
08/28/1990US4952314 Apparatus for treating pulp
08/28/1990US4952278 High opacity paper containing expanded fiber and mineral pigment
08/28/1990US4951888 Refining element and method of manufacturing same
08/28/1990US4951879 Liquid distribution device
08/28/1990CA1273381A1 Refiner with improved bearing retainer construction
08/23/1990CA2009328A1 Pulp washing apparatus and process
08/15/1990CN1044687A Mc nylon grinding disc for paper-making
08/15/1990CN1044686A Manufacturing method of liner boards for leather cases by use of mao bamboos (or mu bamboos, sundry bamboos) and accompanied with waste papers, aristate stems, wheatgrasses, rice straws
07/1990
07/25/1990CN1044139A Beating and dyeing process for high-strength colour paper
07/24/1990US4943347 Method of refining fibrous material by controlling the feed rate of material or the gap distance between discs
07/18/1990EP0281577B1 Refiner with improved bearing retainer construction
07/03/1990CA1271073A1 Screening device with device for reduction of reject
06/1990
06/26/1990US4936518 Apparatus for crushing or grinding of fibrous material, in particular drum refiner
06/13/1990CN1042958A Manufacturing technique of a medium-grade toilet paper made entirely from wheat straw
06/06/1990EP0371066A1 Method and apparatus for controlling the production of refined stock.
06/06/1990EP0288456B1 Disk refiner having sliding rigid multiple disks
05/1990
05/29/1990US4929502 Fibrillated fibers and articles made therefrom
05/23/1990EP0202223B1 Apparatus for thickening and refining fibre-pulp suspensions
05/22/1990CA1269270A1 Method for treating stock for paper making
05/08/1990US4923313 Device in rolling bearings
05/03/1990WO1990004673A1 Method at the making of fibre pulp
05/01/1990US4921573 Dilution of the dewatered waste paper
04/1990
04/25/1990EP0364516A1 Process for controlling a pulp grinder
04/25/1990CA2001293A1 Method at the making of fibre pulp
04/18/1990CN1041413A Semi-chemical wood pulp from shrub mechanical mill and pulping process thereof
03/1990
03/27/1990CA1267016A1 Immediate feedback control of a pulp refiner
03/21/1990CN1007273B Adaptive constant refiner intensity control system
03/20/1990US4908896 Backflushing pressure diffuser screens
03/14/1990CN1040408A Process of pulping and papermaking using false indigo stem as raw material
03/13/1990CA1266714A1 Method and apparatus for controlling a variable speed gearmotor
1 ... 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34