GB1405079A - Process and an apparatus for defibrating fibrous bulk material - Google Patents
Process and an apparatus for defibrating fibrous bulk materialInfo
- Publication number
- GB1405079A GB1405079A GB1877273A GB1877273A GB1405079A GB 1405079 A GB1405079 A GB 1405079A GB 1877273 A GB1877273 A GB 1877273A GB 1877273 A GB1877273 A GB 1877273A GB 1405079 A GB1405079 A GB 1405079A
- Authority
- GB
- United Kingdom
- Prior art keywords
- siren
- defibrating
- pressure wave
- moistening
- fibres
- 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
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Nonwoven Fabrics (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
1405079 Defibrating bulk material; Moistening fibres KOCKUMS MEKANISKA VERKSTAD AB 18 April 1973 [20 April 1972] 18772/73 Headings D1F and D1N A process for defibrating bulk fibrous material comprises subjecting the material to air borne pressure waves in at least two simultaneously acting pressure wave fields of different frequencies. Pressure wave generators may comprise diaphragm valve sirens 5 and 6 directed toward fibrous material 4 or an air and sound permeable bed 3. The material may be subjected periodically to an increased intensity of pressure waves by advancing the siren 6 by means of a piston/cylinder 9, by increasing its volume or by activating an auxiliary siren disposed more closely to the material. An outlet valve 11 from the treatment chamber is closed during the periods of increased intensity. Moisture droplets or steam may be added to the siren air supply to moisten the fibre or aerosol nozzles may be provided. The moistening can be used e.g. to aid subsequent orientation of the fibres by an electrostatic field. The bed 3 may be constructed as a rotary disc or a conveyor belt with a plurality of pressure wave generators disposed along it.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE515072A SE363361B (en) | 1972-04-20 | 1972-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1405079A true GB1405079A (en) | 1975-09-03 |
Family
ID=20265825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1877273A Expired GB1405079A (en) | 1972-04-20 | 1973-04-18 | Process and an apparatus for defibrating fibrous bulk material |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2319845A1 (en) |
GB (1) | GB1405079A (en) |
SE (1) | SE363361B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6748671B1 (en) | 2001-10-30 | 2004-06-15 | Weyerhaeuser Company | Process to produce dried singulated cellulose pulp fibers |
US6769199B2 (en) | 2001-10-30 | 2004-08-03 | Weyerhaeuser Company | Process for producing dried singulated cellulose pulp fibers using a jet drier and injected steam and the product resulting therefrom |
US6782637B2 (en) | 2001-10-30 | 2004-08-31 | Weyerhaeuser Company | System for making dried singulated crosslinked cellulose pulp fibers |
US6862819B2 (en) | 2001-10-30 | 2005-03-08 | Weyerhaeuser Company | System for producing dried singulated cellulose pulp fibers using a jet drier and injected steam |
US7018508B2 (en) | 2001-10-30 | 2006-03-28 | Weyerhaeuser Company | Process for producing dried singulated crosslinked cellulose pulp fibers |
US7334347B2 (en) | 2001-10-30 | 2008-02-26 | Weyerhaeuser Company | Process for producing dried, singulated fibers using steam and heated air |
CN112301466A (en) * | 2020-10-22 | 2021-02-02 | 刘佳 | Cotton opener with destatic and impurity removal function |
CN113910397A (en) * | 2021-11-02 | 2022-01-11 | 宁国市东南木纤维科技有限公司 | Wood fiber production equipment for ecological restoration soilless spray seeding |
-
1972
- 1972-04-20 SE SE515072A patent/SE363361B/xx unknown
-
1973
- 1973-04-18 DE DE19732319845 patent/DE2319845A1/en active Pending
- 1973-04-18 GB GB1877273A patent/GB1405079A/en not_active Expired
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6748671B1 (en) | 2001-10-30 | 2004-06-15 | Weyerhaeuser Company | Process to produce dried singulated cellulose pulp fibers |
US6769199B2 (en) | 2001-10-30 | 2004-08-03 | Weyerhaeuser Company | Process for producing dried singulated cellulose pulp fibers using a jet drier and injected steam and the product resulting therefrom |
US6782637B2 (en) | 2001-10-30 | 2004-08-31 | Weyerhaeuser Company | System for making dried singulated crosslinked cellulose pulp fibers |
US6862819B2 (en) | 2001-10-30 | 2005-03-08 | Weyerhaeuser Company | System for producing dried singulated cellulose pulp fibers using a jet drier and injected steam |
US6865822B2 (en) | 2001-10-30 | 2005-03-15 | Weyerhaeuser Company | Drying system for producing dried singulated cellulose pulp fibers |
US6910285B2 (en) | 2001-10-30 | 2005-06-28 | Weyerhaeuser Company | Process to produce dried singulated cellulose pulp fibers |
US7018508B2 (en) | 2001-10-30 | 2006-03-28 | Weyerhaeuser Company | Process for producing dried singulated crosslinked cellulose pulp fibers |
US7290353B2 (en) | 2001-10-30 | 2007-11-06 | Weyerhaeuser Company | System for making dried singulated crosslinked cellulose pulp fibers |
US7334347B2 (en) | 2001-10-30 | 2008-02-26 | Weyerhaeuser Company | Process for producing dried, singulated fibers using steam and heated air |
CN112301466A (en) * | 2020-10-22 | 2021-02-02 | 刘佳 | Cotton opener with destatic and impurity removal function |
CN112301466B (en) * | 2020-10-22 | 2021-12-10 | 江西天达纺织有限公司 | Cotton opener with destatic and impurity removal function |
CN113910397A (en) * | 2021-11-02 | 2022-01-11 | 宁国市东南木纤维科技有限公司 | Wood fiber production equipment for ecological restoration soilless spray seeding |
Also Published As
Publication number | Publication date |
---|---|
DE2319845A1 (en) | 1973-10-31 |
SE363361B (en) | 1974-01-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |