WO1995016819B1 - Method of manufacturing a screen cylinder and a screen cylinder produced by the method - Google Patents
Method of manufacturing a screen cylinder and a screen cylinder produced by the methodInfo
- Publication number
- WO1995016819B1 WO1995016819B1 PCT/CA1994/000677 CA9400677W WO9516819B1 WO 1995016819 B1 WO1995016819 B1 WO 1995016819B1 CA 9400677 W CA9400677 W CA 9400677W WO 9516819 B1 WO9516819 B1 WO 9516819B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screen
- plate
- slots
- ribs
- cylinder
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract 4
- 210000000614 Ribs Anatomy 0.000 claims abstract 6
- 238000005096 rolling process Methods 0.000 claims abstract 3
- 239000007769 metal material Substances 0.000 claims 1
- 230000004323 axial length Effects 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 239000006194 liquid suspension Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011435 rock Substances 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
Abstract
A method is disclosed for the manufacture of screen cylinders, e.g. for removal of debris such as sand, rock, metal, resin etc. from a liquid suspension used in the pulp and paper industry. The screen is of the type having a plurality of slot passages, each extending axially the entire axial length of the cylinder. According to the invention, the width of the slots is controlled by determining the physical structure of the screen, particularly the overall thickness of the screen and the backing reinforcement ribs, prior to the rolling of the screen plate into a cylinder. A table of a number of different sizes is included showing the practical range of application of the invention. The invention allows the use of standard cutters used in the milling of the slots for the production of screens with much narrower slots to obtain an improved degree of removal of contaminants without having to use specially thin cutters. Screens produced by the method are also claimed.
Claims
AMENDED CLAIMS
[received by the International Bureau on 20 June 1995 (20.06.95); original claims 8 and 9 cancelled; remaining claims unchanged (1 page)]
prior to the rolling of the plate (10) into said cylindric shape, the height of each of said ribs (18) is increased to a total height from about .25 in. (6 mm) to about l in. (25 mm) by fixedly securing to an outer face (27) thereof an additional bar (28) of metallic material, whereby , upon rolling the plate (10) with thus modified height of said ribs 18, 28) into a cylindric shape, the width of the slots (21 ) at said inlet surface (15) is reduced by about .002in. (0.05 mm) to about .010 in. (0.25 mm) depending upon the thickness of the plate (10), the diameter of the cylinder, the spacing between the slots (21 ) and the height of the backing ribs (18, 27).
8. (deleted)
9. (deleted)
10. A method of manufacturing a screen cylinder having a given inside diameter, said given inside diameter being within the range of about 10 in. (250 mm) to about 60 in. (1500 mm); said method comprising the steps of: (a) providing a generally rectangular metallic plate (10) having a known thickness t, a first side (11 ), a second side (12) and two opposed ends (13, 14), the distance between the ends (13, 14) being the length of said plate (10), an inlet face (15) and an opposed, outlet face (16); (b) providing the outlet face (16) with a plurality of straight, spaced apart backing ribs (18) extending from one end (13) of the plate (10) to the other (14) to thus provide, between said ribs (18), a plurality of
AMENDED SHEET (AHΪ1CLE t9J
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/656,323 US5727316A (en) | 1993-12-13 | 1994-12-09 | Method of manufacturing a screen cylinder and a screen cylinder produced by the method |
| AU11890/95A AU1189095A (en) | 1993-12-13 | 1994-12-09 | Method of manufacturing a screen cylinder and a screen cylinder produced by the method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002111147A CA2111147A1 (en) | 1993-12-13 | 1993-12-13 | Method of manufacturing a screen cylinder and a screen cylinder produced by the method |
| CA2,111,147 | 1993-12-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1995016819A1 WO1995016819A1 (en) | 1995-06-22 |
| WO1995016819B1 true WO1995016819B1 (en) | 1995-07-20 |
Family
ID=4152606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CA1994/000677 WO1995016819A1 (en) | 1993-12-13 | 1994-12-09 | Method of manufacturing a screen cylinder and a screen cylinder produced by the method |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5727316A (en) |
| AU (1) | AU1189095A (en) |
| CA (1) | CA2111147A1 (en) |
| WO (1) | WO1995016819A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI100010B (en) * | 1995-11-28 | 1997-08-15 | Ahlstrom Machinery Oy | The screen cylinder |
| DE19635189C2 (en) * | 1996-08-30 | 1999-01-28 | Voith Sulzer Stoffaufbereitung | Process for the production of sieves |
| US5954956A (en) * | 1997-07-22 | 1999-09-21 | J&L Fiber Services | Modular screen cylinder and a method for its manufacture |
| SE510539C2 (en) * | 1997-09-12 | 1999-05-31 | Gl & V Celleco Ab | Method of making a screen plate and screen element comprising one or more screen plates |
| SE515006C2 (en) | 1998-01-29 | 2001-05-28 | Gl & V Celleco Ab | Cylindrical screen and method of producing a cylindrical screen with formed projections |
| US6138838A (en) * | 1998-05-29 | 2000-10-31 | J&L Fiber Services, Inc. | Screen media and a screening passage therefore |
| US6491168B1 (en) | 2000-04-23 | 2002-12-10 | J + L Fiber Services, Inc. | Pulp screen basket |
| US6460757B1 (en) | 2000-11-14 | 2002-10-08 | Newscreen As | Apparatus and method for forming slotted wire screens |
| US6915910B2 (en) | 2001-04-16 | 2005-07-12 | J&L Fiber Services, Inc. | Screen cylinder and method |
| US7168570B2 (en) * | 2001-10-24 | 2007-01-30 | Advanced Fiber Technologies | Screen cylinder with performance boosting configuration |
| CN1301159C (en) * | 2003-09-23 | 2007-02-21 | 东北大学 | Stainless steel abnormal shaped bar material for strip screen and preparation method |
| US20060162747A1 (en) * | 2005-01-25 | 2006-07-27 | Mike Belleville | Polypro scrap accumulator |
| US20090211965A1 (en) * | 2008-02-21 | 2009-08-27 | Weatherford/Lamb, Inc. | Arrangement for splicing panels together to form a cylindrical screen |
| US20090277315A1 (en) * | 2008-05-08 | 2009-11-12 | Alek Ipatenco | Tile saw |
| US9023456B2 (en) | 2011-03-18 | 2015-05-05 | Bilfinger Water Technologies, Inc. | Profiled wire screen for process flow and other applications |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB562087A (en) * | ||||
| GB1135911A (en) * | 1966-01-25 | 1968-12-11 | Guinard Pompes | Improvements in or relating to filter elements and the manufacture thereof |
| US3631981A (en) * | 1969-02-06 | 1972-01-04 | Ingersoll Rand Canada | Blotted pulp screen |
| US3664502A (en) * | 1970-06-26 | 1972-05-23 | Bird Machine Co | Slurry screen and process of making it |
| CA979375A (en) * | 1972-06-26 | 1975-12-09 | Delta Precision Casting Co. | Pocket screen assemblies for centrifugal separators and replacements therefor |
| GB1472547A (en) * | 1973-12-11 | 1977-05-04 | Bekaert Sa Nv | Wire screens |
| CH624315A5 (en) * | 1977-07-22 | 1981-07-31 | Escher Wyss Ag | |
| FI57986C (en) * | 1979-02-28 | 1980-11-10 | Ahlstroem Oy | SILTRUMMA OCH SAETT ATT TILLVERKA DENNA |
| US4406326A (en) * | 1981-12-17 | 1983-09-27 | Uop Inc. | Plastic well screen and method of forming same |
| FI67588C (en) * | 1983-01-26 | 1985-04-10 | Ahlstroem Oy | SILPLAOT |
| US5064537A (en) * | 1987-04-16 | 1991-11-12 | The Black Clawson Company | Seamless screen cylinder with laser cut openings |
| US4901417A (en) * | 1987-08-05 | 1990-02-20 | The Black Clawson Company | Method of finishing screen plates |
| US5023986A (en) * | 1988-06-10 | 1991-06-18 | Beloit Corporation | Method of manufacturing a wave screen plate |
| EP0354846B1 (en) * | 1988-08-12 | 1992-10-21 | E & M LAMORT | Screen for the purification and classification of a pulp suspension |
| US4932112A (en) * | 1988-10-06 | 1990-06-12 | Tim Tikkanen | Sieve plate and process for making it |
| US4918807A (en) * | 1988-10-19 | 1990-04-24 | A. Ahlstrom Corporation | Screen and method of manufacture |
| DE3927202A1 (en) * | 1989-08-17 | 1991-02-21 | Fiedler Heinrich Gmbh | CYLINDRICAL SIEVE BASKET |
| BR9007770A (en) * | 1989-10-23 | 1992-07-21 | Beloit Technologies Inc | MECHANISM OF SCREENING WATER SUSPENSION OF RAW MATERIAL IN THE MANUFACTURE OF PAPER AND SUBSTITUABLE SCREEN FOR A SCREENING MECHANISM |
| US5200072A (en) * | 1990-08-16 | 1993-04-06 | Ahlstrom Screen Plates Inc. | Screen plates and methods of manufacture |
| US5059324A (en) * | 1990-11-15 | 1991-10-22 | Chen Tzau Ha | Centrifugal pulp screen |
| DE4107905C2 (en) * | 1991-03-12 | 1997-01-16 | Voith Sulzer Stoffaufbereitung | Manufacturing process for producing a slotted screen basket |
| FI89521C (en) * | 1991-10-04 | 1993-10-11 | Cae Investments Bv | Process for producing a screen product and by the process for produced screen product |
| US5513757A (en) * | 1994-06-02 | 1996-05-07 | Sulzer Papertec Mansfield Inc. | Continuous cut slotted screen basket |
-
1993
- 1993-12-13 CA CA002111147A patent/CA2111147A1/en not_active Abandoned
-
1994
- 1994-12-09 AU AU11890/95A patent/AU1189095A/en not_active Abandoned
- 1994-12-09 WO PCT/CA1994/000677 patent/WO1995016819A1/en active Application Filing
- 1994-12-09 US US08/656,323 patent/US5727316A/en not_active Expired - Fee Related
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