WO1991010008A1 - Improved efficiency screen plate for screening pulp - Google Patents
Improved efficiency screen plate for screening pulp Download PDFInfo
- Publication number
- WO1991010008A1 WO1991010008A1 PCT/US1990/007138 US9007138W WO9110008A1 WO 1991010008 A1 WO1991010008 A1 WO 1991010008A1 US 9007138 W US9007138 W US 9007138W WO 9110008 A1 WO9110008 A1 WO 9110008A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- undulations
- screen
- screen plate
- improvement
- inch
- Prior art date
Links
- 238000012216 screening Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 claims abstract description 24
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000003754 machining Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 10
- 239000013055 pulp slurry Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 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
- D21D5/16—Cylinders and plates for screens
-
- 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
- B01D29/111—Making filtering elements
-
- 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
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/232—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE91901387T DE69003953T2 (en) | 1990-01-02 | 1990-12-05 | SCREEN PLATE FOR SCREENING PULP. |
BR909007966A BR9007966A (en) | 1990-01-02 | 1990-12-05 | PERFECTED SCREEN PLATE FOR USE IN A PAPER PULP PRESSING SCREENING APPLIANCE |
JP3501773A JPH0742674B2 (en) | 1990-01-02 | 1990-12-05 | Screen for pulp screening with improved efficiency |
FI923059A FI102090B1 (en) | 1990-01-02 | 1992-07-01 | Screen plate for screening the pulp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/462,686 US5041212A (en) | 1990-01-02 | 1990-01-02 | Efficiency screen plate for screening pulp |
US462,686 | 1990-01-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991010008A1 true WO1991010008A1 (en) | 1991-07-11 |
Family
ID=23837395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1990/007138 WO1991010008A1 (en) | 1990-01-02 | 1990-12-05 | Improved efficiency screen plate for screening pulp |
Country Status (11)
Country | Link |
---|---|
US (1) | US5041212A (en) |
EP (1) | EP0509004B1 (en) |
JP (1) | JPH0742674B2 (en) |
AU (1) | AU7039291A (en) |
BR (1) | BR9007966A (en) |
CA (1) | CA2072890C (en) |
DE (1) | DE69003953T2 (en) |
ES (1) | ES2046042T3 (en) |
FI (1) | FI102090B1 (en) |
NZ (1) | NZ236690A (en) |
WO (1) | WO1991010008A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE501273C2 (en) * | 1993-05-14 | 1994-12-19 | Knutsilplaotar Ab | Screen drum for sieving suspensions of lignocellulosic fibrous material |
JPH08209574A (en) * | 1995-01-27 | 1996-08-13 | Aikawa Iron Works Co Ltd | Screen plate for production of paper |
US5823355A (en) * | 1995-03-29 | 1998-10-20 | Beloit Technologies, Inc. | Fibresaver screen basket support |
US5791495A (en) * | 1996-03-11 | 1998-08-11 | Beloit Technologies, Inc. | Paper pulp screen cylinder |
US5954956A (en) * | 1997-07-22 | 1999-09-21 | J&L Fiber Services | Modular screen cylinder and a method for its manufacture |
CA2297744A1 (en) * | 1997-08-06 | 1999-02-18 | Peter Seifert | Paper stock screening apparatus and method |
DE10065931A1 (en) * | 2000-12-22 | 2002-06-27 | Voith Paper Patent Gmbh | Process for the production of screens which can be used in the wet screening of paper fiber suspensions |
CA2444486C (en) * | 2001-04-16 | 2013-04-02 | J & L Fiber Services, Inc. | Screen cylinder and method |
DE102007020325B3 (en) | 2007-04-30 | 2009-01-15 | Voith Patent Gmbh | Process for producing a screen for the treatment of pulp suspensions suitable for paper production |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2311813A (en) * | 1939-08-02 | 1943-02-23 | Erich A Beck | Paper pulp screen |
EP0046687A1 (en) * | 1980-08-25 | 1982-03-03 | The Black Clawson Company | Screening apparatus for paper making stock |
GB2195911A (en) * | 1986-10-08 | 1988-04-20 | Ingersoll Rand Co | Screening apparatus for pulp |
WO1989012137A1 (en) * | 1988-06-10 | 1989-12-14 | Beloit Corporation | Wave screen plate and manufacturing methods |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE11572C (en) * | A. 'SPRENGER in Stuttgart, Gartenstrafse | Equipment on zithers and guitars to amplify the resonance | ||
US2068511A (en) * | 1935-07-15 | 1937-01-19 | Municipal Sanitary Service Cor | Filter |
GB519680A (en) * | 1938-09-22 | 1940-04-03 | James Walker | Improvements in or relating to strainer plates and drums |
US2827169A (en) * | 1954-12-07 | 1958-03-18 | Internat Pulp Products Inc | Screen plate |
US4855038A (en) * | 1985-06-20 | 1989-08-08 | Beloit Corporation | High consistency pressure screen and method of separating accepts and rejects |
-
1990
- 1990-01-02 US US07/462,686 patent/US5041212A/en not_active Expired - Fee Related
- 1990-12-05 DE DE91901387T patent/DE69003953T2/en not_active Expired - Fee Related
- 1990-12-05 CA CA002072890A patent/CA2072890C/en not_active Expired - Fee Related
- 1990-12-05 BR BR909007966A patent/BR9007966A/en not_active IP Right Cessation
- 1990-12-05 EP EP91901387A patent/EP0509004B1/en not_active Expired - Lifetime
- 1990-12-05 JP JP3501773A patent/JPH0742674B2/en not_active Expired - Lifetime
- 1990-12-05 WO PCT/US1990/007138 patent/WO1991010008A1/en active IP Right Grant
- 1990-12-05 ES ES91901387T patent/ES2046042T3/en not_active Expired - Lifetime
- 1990-12-05 AU AU70392/91A patent/AU7039291A/en not_active Abandoned
-
1991
- 1991-01-04 NZ NZ236690A patent/NZ236690A/en unknown
-
1992
- 1992-07-01 FI FI923059A patent/FI102090B1/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2311813A (en) * | 1939-08-02 | 1943-02-23 | Erich A Beck | Paper pulp screen |
EP0046687A1 (en) * | 1980-08-25 | 1982-03-03 | The Black Clawson Company | Screening apparatus for paper making stock |
GB2195911A (en) * | 1986-10-08 | 1988-04-20 | Ingersoll Rand Co | Screening apparatus for pulp |
WO1989012137A1 (en) * | 1988-06-10 | 1989-12-14 | Beloit Corporation | Wave screen plate and manufacturing methods |
Also Published As
Publication number | Publication date |
---|---|
EP0509004B1 (en) | 1993-10-13 |
NZ236690A (en) | 1993-08-26 |
FI923059A (en) | 1992-07-01 |
FI102090B (en) | 1998-10-15 |
BR9007966A (en) | 1992-10-13 |
FI102090B1 (en) | 1998-10-15 |
JPH05504382A (en) | 1993-07-08 |
DE69003953D1 (en) | 1993-11-18 |
CA2072890C (en) | 1995-07-18 |
EP0509004A1 (en) | 1992-10-21 |
AU7039291A (en) | 1991-07-24 |
JPH0742674B2 (en) | 1995-05-10 |
CA2072890A1 (en) | 1991-07-03 |
FI923059A0 (en) | 1992-07-01 |
ES2046042T3 (en) | 1994-01-16 |
DE69003953T2 (en) | 1994-04-07 |
US5041212A (en) | 1991-08-20 |
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