BR9712946A - Peneira e pressão para peneirar uma suspensão de matéria prima para fabricação de papel. - Google Patents
Peneira e pressão para peneirar uma suspensão de matéria prima para fabricação de papel.Info
- Publication number
- BR9712946A BR9712946A BR9712946-1A BR9712946A BR9712946A BR 9712946 A BR9712946 A BR 9712946A BR 9712946 A BR9712946 A BR 9712946A BR 9712946 A BR9712946 A BR 9712946A
- Authority
- BR
- Brazil
- Prior art keywords
- sieve
- raw material
- suspension
- pressure
- tailings
- Prior art date
Links
- 239000002994 raw material Substances 0.000 title abstract 4
- 239000000725 suspension Substances 0.000 title abstract 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000007873 sieving Methods 0.000 abstract 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
- B01D29/118—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration open-ended
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/20—Stationary drums with moving interior agitators
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
"PENEIRA DE PRESSãO PARA PENEIRAR UMA SUSPENSãO DE MATéRIA PRIMA PARA FABRICAçãO DE PAPEL". Uma peneira de pressão (10), para peneirar uma suspensão de matéria prima para fabricação de papel, emprega um dispositivo de peneira cilíndrica (20) que compreende uma única peneira ou uma pluralidade de peneiras alinhadas axialmente, e no qual, as regiões de peneiramento de matéria prima são arranjadas em zonas anelares (22a, 22b, 22c) com uma região de rejeitos (24a, 24b) localizada entre as zonas de peneiramento. As regiões intermediárias de rejeitos encurtam a distância que contaminantes devem atravessar da superfície de entrada da peneira e reduzem a acumulação de concentração de rejeitos sobre a superfície de peneira, otimizando, com isso o desempenho da peneira.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9623727A GB2319196B (en) | 1996-11-14 | 1996-11-14 | Zoned pressure screen |
PCT/US1997/020274 WO1998020958A1 (en) | 1996-11-14 | 1997-11-11 | Zoned pressure screen |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9712946A true BR9712946A (pt) | 2000-03-28 |
Family
ID=10802952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9712946-1A BR9712946A (pt) | 1996-11-14 | 1997-11-11 | Peneira e pressão para peneirar uma suspensão de matéria prima para fabricação de papel. |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0946247B1 (pt) |
JP (1) | JP2001503823A (pt) |
BR (1) | BR9712946A (pt) |
CA (1) | CA2271155C (pt) |
DE (1) | DE69734459T2 (pt) |
GB (1) | GB2319196B (pt) |
WO (1) | WO1998020958A1 (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE511786C2 (sv) * | 1998-03-06 | 1999-11-22 | Sunds Defibrator Ind Ab | Silanordning med två silkammare för separering av fibersuspensioner |
SE9901148L (sv) | 1999-03-29 | 2000-06-12 | Valmet Fibertech Ab | Silanordning med ett roterbart och ett stationärt silorgan |
SE514071C2 (sv) | 1999-04-08 | 2000-12-18 | Valmet Fibertech Ab | Silanordning med axiellt förskjutbar spaltring |
FI129649B (fi) * | 2019-01-31 | 2022-06-15 | Valmet Technologies Oy | Lajittelulaite |
CN115738414B (zh) * | 2022-08-01 | 2024-07-12 | 南通富强纸业有限公司 | 一种造纸废水过滤处理装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2750855A (en) * | 1951-12-20 | 1956-06-19 | Elbert C Lathrop | Dewatering of pulp |
US4127479A (en) * | 1973-11-08 | 1978-11-28 | J. M. Voith G.M.B.H. | Apparatus for straining suspensions |
AT368781B (de) * | 1979-05-21 | 1982-11-10 | Escher Wyss Gmbh | Siebvorrichtung fuer faserstoffsuspensionen, z.b. papierfaserstoff, mit einem drehbaren rundsieb |
US4744894A (en) * | 1986-06-30 | 1988-05-17 | Gauld W Thomas | Fibrous stock screening apparatus |
DE3703831A1 (de) * | 1987-02-07 | 1988-09-08 | Voith Gmbh J M | Spuckstoffsortierer |
US5119953A (en) * | 1990-04-02 | 1992-06-09 | Celleco Hedemora Ab | Pulp suspension screening and fractionation apparatus |
-
1996
- 1996-11-14 GB GB9623727A patent/GB2319196B/en not_active Expired - Fee Related
-
1997
- 1997-11-11 DE DE69734459T patent/DE69734459T2/de not_active Expired - Fee Related
- 1997-11-11 CA CA002271155A patent/CA2271155C/en not_active Expired - Fee Related
- 1997-11-11 EP EP97947392A patent/EP0946247B1/en not_active Expired - Lifetime
- 1997-11-11 JP JP52267998A patent/JP2001503823A/ja not_active Ceased
- 1997-11-11 BR BR9712946-1A patent/BR9712946A/pt not_active IP Right Cessation
- 1997-11-11 WO PCT/US1997/020274 patent/WO1998020958A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
GB9623727D0 (en) | 1997-01-08 |
CA2271155C (en) | 2007-03-13 |
EP0946247A4 (en) | 2000-05-31 |
CA2271155A1 (en) | 1998-05-22 |
GB2319196A (en) | 1998-05-20 |
DE69734459T2 (de) | 2006-06-08 |
EP0946247B1 (en) | 2005-10-26 |
EP0946247A1 (en) | 1999-10-06 |
JP2001503823A (ja) | 2001-03-21 |
DE69734459D1 (de) | 2005-12-01 |
WO1998020958A1 (en) | 1998-05-22 |
GB2319196B (en) | 1998-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Technical examination (opinion): publication of technical examination (opinion) | ||
B09A | Decision: intention to grant | ||
B16A | Patent or certificate of addition of invention granted | ||
B24C | Patent annual fee: request for for restoration |
Free format text: REFERENTE A 11A ANUIDADE. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE AS 14A, 15A, 16A, 17A E 18A ANUIDADES. PAGAR RESTAURACAO. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2342 DE 24-11-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |