WO1998018571B1 - A separator plate for the screening of particulate material - Google Patents
A separator plate for the screening of particulate materialInfo
- Publication number
- WO1998018571B1 WO1998018571B1 PCT/IL1997/000346 IL9700346W WO9818571B1 WO 1998018571 B1 WO1998018571 B1 WO 1998018571B1 IL 9700346 W IL9700346 W IL 9700346W WO 9818571 B1 WO9818571 B1 WO 9818571B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- separator plate
- segment
- amended
- plate according
- pins
- Prior art date
Links
- 239000011236 particulate material Substances 0.000 title claims abstract 5
- 238000011144 upstream manufacturing Methods 0.000 claims abstract 8
- 230000000694 effects Effects 0.000 claims 2
- 238000000926 separation method Methods 0.000 claims 2
- 210000000614 Ribs Anatomy 0.000 claims 1
- 230000000875 corresponding Effects 0.000 claims 1
- 230000003247 decreasing Effects 0.000 claims 1
Abstract
The invention provides a separator plate for the screening of particulate material comprising an upstream non-perforated segment (3), and at least one downstream screening segment (5) with orifices of a desired size and orientation and with a plurality of upward protruding pins (6) distributed between the orifices. There is also provided a sorting apparatus comprising a vibratory screen constituting the above-described separator plate.
Claims
1. A separator plate for the screening of particulate material comprising two or more screening segments with orifices of a desired size and orientation; the screening segments being aligned in a downstream direction, at least one first kind segment being fitted with a plurality of upward protruding pins distributed between the orifices, and at least one second kind segment not comprising any upward protruding pins; the number of said upward protruding pins on a first kind segment being small relative to the number of the orifices thereof, whereby the flow velocity of said particulate material on a first kind segment is reduced and the time of separation is increased.
2. A separator plate according to Claim 1, wherein first and second kind segments alternate with each other.
3. A separator plate according to Claim 1 or 2, terminating with a second kind segment.
4. A separator plate according to any one of the preceding claims, wherein the orifices of different screening segments differ from each other by any of size, shape and orientation.
5. A separator plate according to any one of the preceding claims, being in form of a single integral body.
6. A separator plate according to any one of the preceding claims, wherein each of said segments is a separate unit, with sequential units being suitably connected to each other in a rigid fashion.
7. A separator plate according to any one of the preceding claims, wherein said pins are shaped as cylinders having a base diameter significantly smaller than their height.
8. A separator plate according to any one of the preceding claims, further provided with a non-perforated upstream segment.
9. A separator plate according to Claim 8, wherein said non-perforated upstream segment is transversely corrugated.
10. A separator plate according to Claim 9, wherein said upstream, transversely corrugated segment comprises a plurality of transversal ribs each having a relatively gently sloping upstream side and a steep downstream side. 14
11. A separator plate according to any one of claims 8 to 10, wherein said non-perforated upstream segment is fitted with a plurality of upwards projecting spikes.
12. A separator plate according to any one of claims 8 to 11, wherein said non-perforated upstream segment is followed by a second kind segment.
13. A sorting apparatus of the kind comprising a vibratory screen, characterized in that said vibratory screen is a separator plate according to any one of the preceding claims.
15
STATEMENT UNDER ARTICLE 19
The amended Claim 1 describes a separator plate comprising two different types of screening segments aligned in the downstream direction, where a segment of the first type is fitted with upwardly protruding pins mounted between orifices of any size and orientation, and a segment of the second type comprises only such orifices without any pins. The amended Claim 1 comprises an additional characterizing feature saying that the number of pins is small relative to the number of orifices in the respective segment. The additional feature is mentioned on page 10, lines 20-21 of the originally filed application. The amended Claim 1 also comprises a statement of the obtained effect, namely explains that the claimed design of the separator plate allows a reduction of the flow velocity of the particulate material to be sorted and a corresponding increase in the time of separation on the plate, while the total working area of the screening segments fitted with the pins is not decreased. The mentioned factors together result in a significant improvement of efficacy of the separator plate.
None of the patents cited in the International Search Report describes a screening plate as claimed in the amended Claim 1.
The amended Claim 7 claims the most preferable shape of the pins to be thin cylinders like that shown in Fig. 23a. The thin and high cylindrical pins are maximally suitable for achieving the effect mentioned above in the statement concerning the amended Claim 1.
The amended Claim 12 claims the preferred configuration of the separator plate which is shown in Figs.l, 2a and 2b, i.e. the configuration where the second type screening segment (without pins) follows the upstream non-perforated segment.
The description will be amended in accordance with the amended claims at the stage of Preliminary International Examination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU47213/97A AU4721397A (en) | 1996-10-29 | 1997-10-29 | A separator plate for the screening of particulate material |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/739,515 US5819951A (en) | 1996-10-29 | 1996-10-29 | Separator plate for the screening of a particulate material and a sorting apparatus comprising same |
| US08/739,515 | 1996-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998018571A1 WO1998018571A1 (en) | 1998-05-07 |
| WO1998018571B1 true WO1998018571B1 (en) | 1998-06-11 |
Family
ID=24972652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IL1997/000346 WO1998018571A1 (en) | 1996-10-29 | 1997-10-29 | A separator plate for the screening of particulate material |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5819951A (en) |
| AU (1) | AU4721397A (en) |
| WO (1) | WO1998018571A1 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6401934B1 (en) * | 1993-04-30 | 2002-06-11 | Tuboscope I/P, Inc. | Ramped screen & vibratory separator system |
| US6769550B2 (en) | 2002-01-16 | 2004-08-03 | Varco I/P, Inc. | Screen assemblies for shale shakers |
| US20050035033A1 (en) * | 1999-03-25 | 2005-02-17 | Adams Thomas C. | Methods for sealing screen assemblies on vibratory separators |
| US6129216A (en) * | 1999-05-13 | 2000-10-10 | Xerox Corporation | Particle separation device and processes thereof |
| US20050224398A1 (en) * | 2001-10-19 | 2005-10-13 | Largent David W | Vibratory separators and sealing screens |
| US20050103689A1 (en) * | 2001-10-19 | 2005-05-19 | Schulte David L.Jr. | Sealing screen assemblies and vibratory separators |
| US20050067327A1 (en) * | 2002-01-16 | 2005-03-31 | Adams Thomas C. | Screen assemblies for shale shakers |
| US7506766B2 (en) * | 2006-01-31 | 2009-03-24 | General Kinematics Corporation | Apparatuses and methods for separating mixed materials |
| US8033058B2 (en) * | 2009-04-28 | 2011-10-11 | Fiskars Brands, Inc. | Apparatus for diverting rainwater |
| GB201000769D0 (en) * | 2010-01-19 | 2010-03-03 | Frosst Iberica Sa | Apparatus for separating tablets |
| US8991618B2 (en) * | 2010-08-27 | 2015-03-31 | Jeffrey Scott Green | Method of cartridge case sorting and sorting apparatus |
| US9027759B2 (en) * | 2011-11-22 | 2015-05-12 | Key Technology, Inc. | Sorting apparatus |
| US8714362B2 (en) * | 2011-11-22 | 2014-05-06 | Key Technology, Inc. | Sorting apparatus |
| US9089877B2 (en) * | 2013-03-15 | 2015-07-28 | Michael McGrath, JR. | Backing screen panels for vibrating screen separator |
| CN103894339A (en) * | 2013-12-27 | 2014-07-02 | 力天模塑(大连)有限公司 | Medical indwelling needle distribution machine |
| BE1024079B1 (en) * | 2015-09-07 | 2017-11-13 | Pharma Technology S.A. | DEVICE FOR SEPARATING PARTICLE CASSONS FROM SAID PARTICLES |
| DE102016225248A1 (en) * | 2016-12-16 | 2018-06-21 | Siltronic Ag | Separator for polysilicon |
| CN106743721A (en) * | 2016-12-18 | 2017-05-31 | 新乡市振英机械设备有限公司 | Volume control device when a kind of diadust is sieved |
| CN108704837A (en) * | 2018-04-09 | 2018-10-26 | 杨东雨 | A kind of quick screening plant of processing of farm products cereal |
| CN111035983A (en) * | 2020-01-06 | 2020-04-21 | 同济大学 | A filter equipment that is arranged in biological diatomaceous earth mixed liquid impurity to get rid of |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE45982C (en) * | F. J. DRECHSLER in Berlin, Weifsenburgerstr. 41 | Elevations between the perforations of sieves | ||
| US1561632A (en) * | 1924-02-27 | 1925-11-17 | Herbert S Woodward | Perforated indented screen |
| FR1282608A (en) * | 1960-12-12 | 1962-01-27 | Socam Sa | Device for regulating the residence time of a product on a sieve, usable in particular in milling |
| US3420658A (en) * | 1966-03-03 | 1969-01-07 | Dow Chemical Co | Fluid sludge method |
| NL6606721A (en) * | 1966-05-17 | 1967-01-25 | ||
| GB2052310B (en) * | 1979-06-18 | 1983-05-05 | Peanuts Ltd Q | Grading machine for particulate commodity |
| US5211291A (en) * | 1991-11-07 | 1993-05-18 | Derrick Manufacturing Corporation | Vibratory separator plate for flake-like members |
| US5586661A (en) * | 1994-12-15 | 1996-12-24 | Illinois Tool Works Inc. | Dam member for a screen deck |
| US5699918A (en) * | 1996-07-26 | 1997-12-23 | Corrosion Engineering, Inc. | Screen for vibrating material sorting apparatus |
-
1996
- 1996-10-29 US US08/739,515 patent/US5819951A/en not_active Expired - Fee Related
-
1997
- 1997-10-29 WO PCT/IL1997/000346 patent/WO1998018571A1/en active Application Filing
- 1997-10-29 AU AU47213/97A patent/AU4721397A/en not_active Abandoned
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