ES356767A1 - Refining apparatus, chiefly for screening paper pulp - Google Patents
Refining apparatus, chiefly for screening paper pulpInfo
- Publication number
- ES356767A1 ES356767A1 ES356767A ES356767A ES356767A1 ES 356767 A1 ES356767 A1 ES 356767A1 ES 356767 A ES356767 A ES 356767A ES 356767 A ES356767 A ES 356767A ES 356767 A1 ES356767 A1 ES 356767A1
- Authority
- ES
- Spain
- Prior art keywords
- screen
- blades
- obstructions
- slots
- paper pulp
- 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
- 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
- D21D5/023—Stationary screen-drums
- D21D5/026—Stationary screen-drums with rotating cleaning foils
Abstract
A paper pulp-screening apparatus involving a cylindrical, perforate or slotted, metal screen 2 which is kept clean by one or more moving blades 1, which create pulsations on the upstream or downstream side of the screen, comprises elongated obstructions, consisting either of bars 5 or recesses in the screen surface adjacent the blades, which extend parallel or slightly obliquely to the blades across the screen. The obstructions inhibit screen clogging, by reducing the flow rate of liquid parallel to the screen and induced by the blades. The slots in screen 2 may extend parallel to the blades or perpendicular thereto. In either case the obstructions are located adjacent the downstream ends or edges of the slots, from the blade movement point of view (Figs. 4, 6, not shown) or between groups of slots (Fig. 5). Obstructions may extend the whole height of the screen or be short and staggered. Bars 5 may have sharp edges 5a which co-operate with blades 1 to cut large fibres.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR116590A FR1539846A (en) | 1967-08-02 | 1967-08-02 | Further training in scrubbers, especially for paper pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES356767A1 true ES356767A1 (en) | 1970-05-01 |
Family
ID=8636260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES356767A Expired ES356767A1 (en) | 1967-08-02 | 1968-08-01 | Refining apparatus, chiefly for screening paper pulp |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3617008A (en) |
| CA (1) | CA932670A (en) |
| DE (1) | DE1761930B2 (en) |
| ES (1) | ES356767A1 (en) |
| FI (1) | FI51222C (en) |
| FR (1) | FR1539846A (en) |
| GB (1) | GB1242086A (en) |
| NL (1) | NL6810922A (en) |
| SE (1) | SE362454B (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2234076C3 (en) * | 1971-07-26 | 1985-11-14 | Meyer AG Zuchwil, Zuchwil | Agitator mill |
| US3849302A (en) * | 1972-09-12 | 1974-11-19 | Black Clawson Co | Method and apparatus for screening paper fiber stock |
| DE2526657C3 (en) * | 1975-06-14 | 1978-10-26 | Hermann Finckh, Maschinenfabrik, 7417 Pfullingen | Pressure sifter for fiber suspensions |
| US4155841A (en) * | 1977-03-22 | 1979-05-22 | The Black Clawson Company | High turbulence screen |
| SE427124B (en) * | 1980-01-28 | 1983-03-07 | Celleco Ab | DEVICE FOR FILING OF FIBER PASS PENSIONS |
| US4410424A (en) * | 1980-05-02 | 1983-10-18 | The Black Clawson Company | Screening apparatus for paper making stock |
| US4276159A (en) * | 1980-06-19 | 1981-06-30 | The Black Clawson Company | Apparatus for screening paper fiber stock |
| CA1180686A (en) * | 1980-08-25 | 1985-01-08 | Black Clawson Company (The) | Paper making stock screening apparatus incorporating circular apertured cylindrical pressure screen |
| ATE19272T1 (en) * | 1981-06-19 | 1986-05-15 | Black Clawson Co | SCREENING DEVICE FOR PAPER STUFFS AND METHOD FOR TREATMENT OF PAPER STUFFS. |
| FR2516563A1 (en) * | 1981-11-18 | 1983-05-20 | Lamort E & M | IMPROVEMENTS ON PAPER PULP CLEANERS AND THEIR SCREWS |
| JPS5953792A (en) * | 1982-09-16 | 1984-03-28 | 相川鉄工株式会社 | Screen in paper stock refining apparatus |
| DE3368957D1 (en) * | 1983-01-21 | 1987-02-12 | Black Clawson Co | Screening apparatus for paper making stock |
| DE3448571C3 (en) * | 1983-01-26 | 2001-10-25 | Cae Screenplates Oy | Sieve plate for fiber suspensions |
| FI67588C (en) * | 1983-01-26 | 1985-04-10 | Ahlstroem Oy | SILPLAOT |
| DE3327422C2 (en) * | 1983-07-29 | 1995-03-16 | Voith Gmbh J M | Sieve, in particular for sorting fiber suspensions based on waste paper |
| DE3607457A1 (en) * | 1986-03-07 | 1987-09-10 | Voith Gmbh J M | SORTING SCREEN |
| JPS62238894A (en) * | 1986-04-08 | 1987-10-19 | 石川島播磨重工業株式会社 | Screen plate |
| GB2195911A (en) * | 1986-10-08 | 1988-04-20 | Ingersoll Rand Co | Screening apparatus for pulp |
| FR2613389A1 (en) * | 1987-04-06 | 1988-10-07 | Lamort E & M | IMPROVEMENT IN SIEVES FOR PULP CLEANERS |
| US4795560A (en) * | 1987-04-16 | 1989-01-03 | The Black Clawson Company | Screen plates |
| ES2035609T3 (en) * | 1988-08-12 | 1993-04-16 | E & M Lamort | PAPER PULP SCREENERS AND SCREENERS. |
| US5624558A (en) * | 1994-08-04 | 1997-04-29 | Cae Screenplates Inc. | Method and apparatus for screening a fiber suspension |
| CA2158522C (en) * | 1994-09-19 | 2001-04-10 | Daniel R. Roll | Mixer for mixing multi-phase fluids |
| US6138838A (en) | 1998-05-29 | 2000-10-31 | J&L Fiber Services, Inc. | Screen media and a screening passage therefore |
| US6254729B1 (en) | 1999-03-22 | 2001-07-03 | Voith Sulzer Paper Technology North America, Inc. | Pulper with extraction plate assembly having removable inserts and method of manufacturing same |
| DE102009015405A1 (en) * | 2009-03-27 | 2010-09-30 | Voith Patent Gmbh | scree |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2225095A (en) * | 1939-04-27 | 1940-12-17 | Claud Mcclellan | Screen for hammer mills |
| FR1049477A (en) * | 1951-08-25 | 1953-12-30 | Debuswerke G M B H | Hammer mill |
| US2833484A (en) * | 1954-04-16 | 1958-05-06 | Diamond Alkali Co | Hammer mill and screen |
| US3409132A (en) * | 1966-01-03 | 1968-11-05 | Buckeye Cellulose Corp | Screen plate for centrifugal pulp screens |
| US3380669A (en) * | 1966-04-11 | 1968-04-30 | Black Clawson Co | Plural defibering zones in a pulping apparatus |
-
1967
- 1967-08-02 FR FR116590A patent/FR1539846A/en not_active Expired
-
1968
- 1968-07-23 DE DE19681761930 patent/DE1761930B2/en not_active Ceased
- 1968-07-25 US US747503A patent/US3617008A/en not_active Expired - Lifetime
- 1968-07-30 GB GB36407/68A patent/GB1242086A/en not_active Expired
- 1968-07-31 FI FI682172A patent/FI51222C/en active
- 1968-08-01 ES ES356767A patent/ES356767A1/en not_active Expired
- 1968-08-01 SE SE10440/68A patent/SE362454B/xx unknown
- 1968-08-01 NL NL6810922A patent/NL6810922A/xx unknown
- 1968-08-02 CA CA026528A patent/CA932670A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE362454B (en) | 1973-12-10 |
| FI51222C (en) | 1976-11-10 |
| DE1761930B2 (en) | 1977-06-30 |
| US3617008A (en) | 1971-11-02 |
| NL6810922A (en) | 1969-02-04 |
| GB1242086A (en) | 1971-08-11 |
| FR1539846A (en) | 1968-09-20 |
| DE1761930A1 (en) | 1971-09-30 |
| FI51222B (en) | 1976-08-02 |
| CA932670A (en) | 1973-08-28 |
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