GB1480633A - Apparatus and method for classifying slurries of paper-making fibres into fractions of different fibre lengths - Google Patents
Apparatus and method for classifying slurries of paper-making fibres into fractions of different fibre lengthsInfo
- Publication number
- GB1480633A GB1480633A GB37257/74A GB3725774A GB1480633A GB 1480633 A GB1480633 A GB 1480633A GB 37257/74 A GB37257/74 A GB 37257/74A GB 3725774 A GB3725774 A GB 3725774A GB 1480633 A GB1480633 A GB 1480633A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- slots
- screen
- lands
- aug
- 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
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G5/00—Separating, e.g. sorting, fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/06—Rotary screen-drums
Abstract
1480633 Paper pulp screening apparatus BLACK CLAWSON CO 23 Aug 1974 [28 Aug 1973] 37257/74 Heading B1D Apparatus for screening paper pulp slurry comprises a tangential inlet 13 leading to the interior of a cylindrical screen 15 having axially oriented slots 40 whose width (Fig. 2) is considerably less than that of the solid lands 42 between them, whereby fibres whose length exceeds the width of lands 42 tend to catch across the lands rather than pass through the slots, rotating vanes 35 then removing such caught fibres which are eventually discharged through rejects valve 23. The slurry flows helically down the screen and fibres tend to orientate tangentially thereof. Typically slots 40 are 0.5 mm wide and 2 mm apart so that fibres longer than 2.2 mm are rejected, while short fibres and particulates pass outwards through the screen to outlet 18. Screen 15 has three rows of slots 2 inches long and the rows are 1 inch apart. Vanes 35 extend helically and are adjustably mounted at 37 on rotor 30. Slots may be provided with narrow portions extending only part way through the screen on the upstream side (Fig. 3 not shown). A valve 25 enables heavy solids collecting at the bottom of the rejects chamber 21 to be discharged into box 24.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US392263A US3909400A (en) | 1973-08-28 | 1973-08-28 | Apparatus for fractionating fiber suspensions in accordance with fiber length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1480633A true GB1480633A (en) | 1977-07-20 |
Family
ID=23549928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37257/74A Expired GB1480633A (en) | 1973-08-28 | 1974-08-23 | Apparatus and method for classifying slurries of paper-making fibres into fractions of different fibre lengths |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3909400A (en) |
| JP (1) | JPS5730197B2 (en) |
| AR (1) | AR203105A1 (en) |
| BR (1) | BR7405174A (en) |
| CA (1) | CA1003363A (en) |
| DE (1) | DE2441059A1 (en) |
| ES (1) | ES429600A1 (en) |
| FR (1) | FR2245818B1 (en) |
| GB (1) | GB1480633A (en) |
| SE (1) | SE401939B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2750499C3 (en) * | 1977-11-11 | 1982-02-04 | Hermann Finckh, Maschinenfabrik GmbH & Co, 7417 Pfullingen | Sorter for fiber suspension |
| US4383918A (en) * | 1980-05-02 | 1983-05-17 | The Black Clawson Company | High turbulence screen |
| FI67588C (en) * | 1983-01-26 | 1985-04-10 | Ahlstroem Oy | SILPLAOT |
| SE8701423L (en) * | 1987-04-06 | 1988-10-07 | Kamyr Ab | PROCEDURE FOR MANUFACTURING FIBER CONTENT WITH DIFFERENT FRAME MATERIALS |
| US4876008A (en) * | 1988-10-06 | 1989-10-24 | Panel International Ltd. P.L.C. | Sieve plate |
| US5133832A (en) * | 1991-07-08 | 1992-07-28 | The Black Clawson Company | Process and system for preparation of waste paper stock with short and long fiber fractionation |
| US5624558A (en) * | 1994-08-04 | 1997-04-29 | Cae Screenplates Inc. | Method and apparatus for screening a fiber suspension |
| US6029821A (en) * | 1995-09-25 | 2000-02-29 | Heinrich Fiedler Gmbh & Co. Kg | Screening device |
| DE19535619A1 (en) * | 1995-09-25 | 1997-03-27 | Fiedler Heinrich Gmbh | Sorting device |
| FR2934868B1 (en) * | 2008-08-11 | 2010-11-19 | Marc Perrin | DEVICE AND METHOD FOR SEPARATING FIBERS CONTAINED IN A LIQUID, PARTICULARLY CELLULOSIC FIBERS |
| CN110918458B (en) * | 2019-12-05 | 2021-01-29 | 东营海瑞宝新材料有限公司 | Production and preparation method of anticorrosive paint |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1037597A (en) * | 1911-11-09 | 1912-09-03 | Benjamin Denver Coppage | Screening-machine for paper-pulp. |
| US2975899A (en) * | 1957-04-16 | 1961-03-21 | Bird Machine Co | Screening device |
| US3276584A (en) * | 1963-10-01 | 1966-10-04 | Wilfred F Mathewson | Pulp screen |
| US3349911A (en) * | 1965-12-17 | 1967-10-31 | Clayton Anderson & Co | Fractionating apparatus |
| US3420373A (en) * | 1966-04-01 | 1969-01-07 | Allen Bruce Hunter | Pulp screens |
| SE316363B (en) * | 1966-12-01 | 1969-10-20 | Karlstad Mekaniska Ab | |
| SE305197B (en) * | 1966-12-19 | 1968-10-21 | Celleco Ab | |
| US3680696A (en) * | 1970-03-23 | 1972-08-01 | Bird Machine Co | Screening |
| US3726401A (en) * | 1970-12-16 | 1973-04-10 | Bird Machine Co | Screening machine |
| US3713541A (en) * | 1971-05-10 | 1973-01-30 | Bird Machine Co | Screening machine with slotted screen |
-
1973
- 1973-08-28 US US392263A patent/US3909400A/en not_active Expired - Lifetime
-
1974
- 1974-05-08 AR AR253650A patent/AR203105A1/en active
- 1974-05-28 CA CA201,025A patent/CA1003363A/en not_active Expired
- 1974-06-25 BR BR5174/74A patent/BR7405174A/en unknown
- 1974-06-28 SE SE7408549A patent/SE401939B/en unknown
- 1974-07-09 FR FR7423852A patent/FR2245818B1/fr not_active Expired
- 1974-07-10 JP JP7902974A patent/JPS5730197B2/ja not_active Expired
- 1974-08-23 GB GB37257/74A patent/GB1480633A/en not_active Expired
- 1974-08-27 DE DE2441059A patent/DE2441059A1/en not_active Ceased
- 1974-08-28 ES ES429600A patent/ES429600A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BR7405174A (en) | 1976-02-24 |
| US3909400A (en) | 1975-09-30 |
| SE401939B (en) | 1978-06-05 |
| FR2245818A1 (en) | 1975-04-25 |
| JPS5730197B2 (en) | 1982-06-26 |
| JPS5043203A (en) | 1975-04-18 |
| SE7408549L (en) | 1975-03-03 |
| ES429600A1 (en) | 1976-09-01 |
| CA1003363A (en) | 1977-01-11 |
| DE2441059A1 (en) | 1975-03-13 |
| FR2245818B1 (en) | 1979-08-03 |
| AR203105A1 (en) | 1975-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |