GB763823A - Method for treating a fibrous material - Google Patents
Method for treating a fibrous materialInfo
- Publication number
- GB763823A GB763823A GB2869/55A GB286955A GB763823A GB 763823 A GB763823 A GB 763823A GB 2869/55 A GB2869/55 A GB 2869/55A GB 286955 A GB286955 A GB 286955A GB 763823 A GB763823 A GB 763823A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulp
- fibre
- treated
- sleeve
- teeth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/56—Mixing liquids with solids by introducing solids in liquids, e.g. dispersing or dissolving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
- B01F27/2714—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator the relative position of the stator and the rotor, gap in between or gap with the walls being adjustable
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/004—Methods of beating or refining including disperging or deflaking
- D21D1/006—Disc mills
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/912—Radial flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/47—Mixing of ingredients for making paper pulp, e.g. wood fibres or wood pulp
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
- B01F27/2711—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with intermeshing elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Paper (AREA)
Abstract
<PICT:0763823/IV(b)/1> <PICT:0763823/IV(b)/2> Material such as wood pulp, bagasse, ramie, linen, or cotton, in fibre bundles, is fed through a port 17, Fig. 1, on to a rapidly rotating circular head 57 mounting an annular plate 66 having a series of triangular teeth 72, Fig. 2, co-operating with similar teeth on a plate 68 fixed to an upper casing 11. The spindle 28, which is driven by a pulley 78, is mounted in a sleeve 29, which may be moved axially by means of a hand operated worm 55 turning a wheel 49 which rotates an axially fixed nut 46 having threads engaging outer threads on a non-rotatable axially movable sleeve 35. The sleeve 35 acts on the sleeve 29 through a spring 39, so that movement up or down of the sleeve 29 varies the gaps between the co-operating teeth on the plates 66, 68 and allows these plates to separate sufficiently to pass any foreign object entering the machine. In operation, the fibre is directed by fins 64 to the teeth, and air is drawn in through the port 17. The teeth flex and separate the fibres as the fibres move to the rims of the plates, and at a specified radial distance from the point of entry of the fibre, where the separation is complete, a gas or liquid treating agent, e.g. bleaching liquid, which may be atomized before entering or in the machine, is introduced through one or more pipes 73. Substances which are sensitive to oxygen can be treated in the zone in an atmosphere of nitrogen or carbon dioxide, and steam or heated gas can be introduced to control the treating temperature. After shredding and treatment the fibres are impelled by blades 65 to an exit port 18. In one example, ground wood pulp containing 40 per cent of fibre on a dry basis is fed continuously into the apparatus and bleached with an aqueous solution containing hydrogen peroxide and sodium silicate at 75 DEG F. The treated pulp has a fibre content of 34.4 per cent on a dry basis and a pH value of between 9.5 and 10. In another example, ground wood pulp containing 38 per cent of fibre on a dry basis is fed into the apparatus with an aqueous bleaching solution containing magnesium sulphate, sodium silicate, hydrogen peroxide and sodium peroxide, the temperature of both pulp and bleach being about 140 DEG F. The pulp discharged has a pH of 9.5-10 and an increased brightness. In a further example, a sulphite pulp having a consistency of 40 per cent is treated with an aqueous solution of sodium chlorite, and the treated pulp is then stored for three hours at 104 DEG F. The pulp may be treated with both sodium chlorite and sodium hypochlorite solutions, the former being introduced nearer the point of entry of the pulp than the latter. Specification 722,820 [Group II] is referred to.ALSO:The apparatus of this Specification is identical with that described in Specification 722,820 but the claims differ and additional processes are described (see Groups IV(c) and VI).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1167033D FR1167033A (en) | 1955-01-31 | 1955-01-31 | Process for treating fibrous material |
GB2869/55A GB763823A (en) | 1955-01-31 | 1955-01-31 | Method for treating a fibrous material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2869/55A GB763823A (en) | 1955-01-31 | 1955-01-31 | Method for treating a fibrous material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB763823A true GB763823A (en) | 1956-12-19 |
Family
ID=9747525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2869/55A Expired GB763823A (en) | 1955-01-31 | 1955-01-31 | Method for treating a fibrous material |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1167033A (en) |
GB (1) | GB763823A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2478154A1 (en) * | 1980-03-13 | 1981-09-18 | Sunds Defibrator | METHOD AND DEVICE FOR ADMITTING AND MIXING A PROCESSING LIQUID OR GAS IN A PULP SUSPENSION |
EP1147806A1 (en) * | 2000-04-11 | 2001-10-24 | Voith Paper Patent GmbH | Apparatus to disperse a high consistency paper fibers slurry and linings for this apparatus |
EP1147804A1 (en) * | 2000-04-11 | 2001-10-24 | Voith Paper Patent GmbH | Apparatus to disperse a high consistency paper fibers slurry and linings for this apparatus |
EP2366826A1 (en) | 2010-03-18 | 2011-09-21 | Recuperación de Materiales Textiles, S.A. | Process and installation for the continuous treatment of bulk solid fibrous materials |
CN102535218A (en) * | 2010-12-23 | 2012-07-04 | 安德里特斯公开股份有限公司 | Refiner |
EP2243879A3 (en) * | 2009-04-23 | 2014-02-19 | Andritz, Inc. | Deflaker plate and methods relating thereto |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI53853C (en) * | 1976-04-15 | 1978-08-10 | Enso Gutzeit Oy | SKIVKVARN |
FI61215B (en) * | 1976-11-23 | 1982-02-26 | Defibrator Ab | SAFETY RANGE OF CONTAINER FRAMSTAELLA LIGNOCELLULOSAHALTIGA FIBERMATERIAL |
FI62872C (en) * | 1978-06-06 | 1983-03-10 | Ahlstroem Oy | ANORDNING FOER SILNING AV FIBERSUSPENSIONER |
-
1955
- 1955-01-31 GB GB2869/55A patent/GB763823A/en not_active Expired
- 1955-01-31 FR FR1167033D patent/FR1167033A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2478154A1 (en) * | 1980-03-13 | 1981-09-18 | Sunds Defibrator | METHOD AND DEVICE FOR ADMITTING AND MIXING A PROCESSING LIQUID OR GAS IN A PULP SUSPENSION |
EP1147806A1 (en) * | 2000-04-11 | 2001-10-24 | Voith Paper Patent GmbH | Apparatus to disperse a high consistency paper fibers slurry and linings for this apparatus |
EP1147804A1 (en) * | 2000-04-11 | 2001-10-24 | Voith Paper Patent GmbH | Apparatus to disperse a high consistency paper fibers slurry and linings for this apparatus |
EP2243879A3 (en) * | 2009-04-23 | 2014-02-19 | Andritz, Inc. | Deflaker plate and methods relating thereto |
RU2527795C2 (en) * | 2009-04-23 | 2014-09-10 | Андритц Инк. | Deflaker plate and appropriate processes |
EP2366826A1 (en) | 2010-03-18 | 2011-09-21 | Recuperación de Materiales Textiles, S.A. | Process and installation for the continuous treatment of bulk solid fibrous materials |
CN102535218A (en) * | 2010-12-23 | 2012-07-04 | 安德里特斯公开股份有限公司 | Refiner |
CN102535218B (en) * | 2010-12-23 | 2016-03-09 | 安德里特斯公开股份有限公司 | Fiberizer |
Also Published As
Publication number | Publication date |
---|---|
FR1167033A (en) | 1958-11-19 |
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