SE463698B - FILTER PLATE - Google Patents
FILTER PLATEInfo
- Publication number
- SE463698B SE463698B SE8701820A SE8701820A SE463698B SE 463698 B SE463698 B SE 463698B SE 8701820 A SE8701820 A SE 8701820A SE 8701820 A SE8701820 A SE 8701820A SE 463698 B SE463698 B SE 463698B
- Authority
- SE
- Sweden
- Prior art keywords
- filter plate
- filter
- plate
- area
- plate according
- Prior art date
Links
- 239000004744 fabric Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- B01D29/39—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 hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
Description
463 698 l0 15 20 25 30 35 2 Filterplattan enligt föreliggande uppfinning kännetecknas av att den är försedd med ett stort antal hål, där arean hos varje enskilt hål är högst l cmz, att plattans totala fria öppna area är minst 70% av dess totala area, och att plattans tjocklek är minst 5 mm. 463 698 10 15 The filter plate according to the present invention is characterized in that it is provided with a large number of holes, where the area of each individual hole is at most 1 cm 2, that the total free open area of the plate is at least 70% of its total area , and that the plate thickness is at least 5 mm.
Ytterligare kännetecken hos uppfinningen fram- går av den efterföljande beskrivningen och de osjälv- ständiga patentkraven.Further features of the invention appear from the following description and the dependent claims.
Ett kritiskt drag hos uppfinningen är att den enskilda hålarean är högst 1 cmz. Om denna hålarea överskrides, har det nämligen överraskande visat sig att filtrets flödeskapacitet drastiskt minskar, istället för att öka, såsom man skulle förmoda. Detta framgår närmare av det nedan beskrivna jämförande försöket.A critical feature of the invention is that the individual hole area is at most 1 cm 2. If this hole area is exceeded, it has surprisingly been found that the flow capacity of the filter decreases drastically, instead of increasing, as would be assumed. This is shown in more detail in the comparative experiment described below.
Vid en föredragen utföringsform av uppfinningen är varje enskild hålarea i filterplattan högst 1 cmz, plattans tjocklek är 10 mm, den totala fria öppna arean är ca 80% av totalarean och hålen är utformade som kvadrater med 9 mm sida och l mm breda mellanväggar mellan hålen.In a preferred embodiment of the invention, each individual hole area in the filter plate is at most 1 cm 2, the plate thickness is 10 mm, the total free open area is about 80% of the total area and the holes are designed as squares with 9 mm side and 1 mm wide partitions between the holes. .
Beskrivning av ritningarna Figur 1 är en delvy ovanifràn av filterplattan enligt uppfinningen. Figur 2 är en sidodelvy av filter- plattan enligt uppfinningen.Description of the drawings Figure 1 is a partial view from above of the filter plate according to the invention. Figure 2 is a side partial view of the filter plate according to the invention.
Enligt figur l är en filterplatta 1 försedd med ett stort antal kvadratiskt utformade hål 2 åtskilda av mellanväggar 3. Hela filterplattan är rektangulärt formad med måtten l200x400 mm, och flera plattmoduler kan kopplas ihop till ett stort system. En filterduk 4 är limmad eller svetsad 5, över hela kontaktytan med filterplattan, varvid limmet är anbringat eller svetsningen gjord vid kontaktytan ovanpå mellanväggarna 3 och på plattans utsidor. Filterplattan är tillverkad av plast, företrädesvis akrylplast, medan filterduken är tillverkad av stål, företrädesvis syrafast stål.According to Figure 1, a filter plate 1 is provided with a large number of square-shaped holes 2 separated by partitions 3. The entire filter plate is rectangularly shaped with the dimensions 1200x400 mm, and several plate modules can be connected to a large system. A filter cloth 4 is glued or welded 5, over the entire contact surface with the filter plate, the glue being applied or the welding done at the contact surface on top of the partitions 3 and on the outside of the plate. The filter plate is made of plastic, preferably acrylic plastic, while the filter cloth is made of steel, preferably acid-resistant steel.
Filterduken har företrädesvis en maskvidd av ca 10 15 20 463 698 3 25-150 um och en öppen area av ca 25-50%. Mellanväg- garnas 3 tjocklek är 1 mm. Plattans totala fria öppna area är ca 80% av totalarean.The filter cloth preferably has a mesh size of about 25-150 μm and an open area of about 25-50%. The thickness of the partitions 3 is 1 mm. The total free open area of the slab is about 80% of the total area.
Försök Vid ett jämförande försök användes 2 olika filter- plattor för avskiljning av fasta partiklar från ett vätskeflöde. Först användes en filterplatta enligt uppfinningen med håldimensionerna l0xl0xl3 mm, varvid flödeskapaciteten noterades. En för jämförelse avsedd filterplatta med håldimensionerna l3x13xlO mm användes därefter under samma betingelser. Härvid uppmättes en minskning av flödeskapaciteten av hela ca 40%, vilket visar att filterplattan enligt uppfinningen är överlägsen jämförelseplattan vad beträffar flödes- kapaciteten, och att den enskilda hålarean av högst l cmz är kritisk.Experiment In a comparative experiment, 2 different filter plates were used to separate solid particles from a liquid flow. First, a filter plate according to the invention with the hole dimensions l0x10x13 mm was used, the flow capacity being noted. A filter plate for comparison with the hole dimensions 13x13x10 mm was then used under the same conditions. In this case, a reduction of the flow capacity of as much as about 40% was measured, which shows that the filter plate according to the invention is superior to the comparison plate in terms of flow capacity, and that the individual hole area of at most 1 cm 2 is critical.
Claims (10)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8701820A SE463698B (en) | 1987-05-04 | 1987-05-04 | FILTER PLATE |
| AU17112/88A AU1711288A (en) | 1987-05-04 | 1988-05-04 | Filter plate |
| PCT/SE1988/000228 WO1988008739A1 (en) | 1987-05-04 | 1988-05-04 | Filter plate |
| EP19880903989 EP0394236A1 (en) | 1987-05-04 | 1988-05-04 | Filter plate |
| DK538789A DK538789A (en) | 1987-05-04 | 1989-10-27 | FILTER PLATE |
| US07/545,126 US5076924A (en) | 1987-05-04 | 1990-06-28 | Filter plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8701820A SE463698B (en) | 1987-05-04 | 1987-05-04 | FILTER PLATE |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8701820D0 SE8701820D0 (en) | 1987-05-04 |
| SE8701820L SE8701820L (en) | 1988-11-05 |
| SE463698B true SE463698B (en) | 1991-01-14 |
Family
ID=20368396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8701820A SE463698B (en) | 1987-05-04 | 1987-05-04 | FILTER PLATE |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0394236A1 (en) |
| AU (1) | AU1711288A (en) |
| DK (1) | DK538789A (en) |
| SE (1) | SE463698B (en) |
| WO (1) | WO1988008739A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2245191B (en) * | 1990-06-22 | 1994-01-26 | United Wire Ltd | Filter screen assembly |
| GB2266475B (en) * | 1992-04-21 | 1995-08-16 | Alfa Laval Separation Ab | Mounting and tensioning arrangements for screens |
| CH685760A5 (en) * | 1992-06-25 | 1995-09-29 | Guenther Weikmann | A method of filtering out foreign substances and apparatus therefor. |
| SE539965C2 (en) | 2015-06-23 | 2018-02-13 | Veolia Water Solutions & Tech | Filter panel with a controlled liquid lift, and a drum filter for filtering liquid |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3747770A (en) * | 1969-06-20 | 1973-07-24 | Zurn Ind Inc | Filter screen |
| SE379647B (en) * | 1970-02-18 | 1975-10-20 | A J Walker | |
| US4038187A (en) * | 1976-02-03 | 1977-07-26 | Envirex Inc. | Microscreen drum |
-
1987
- 1987-05-04 SE SE8701820A patent/SE463698B/en not_active IP Right Cessation
-
1988
- 1988-05-04 WO PCT/SE1988/000228 patent/WO1988008739A1/en not_active Application Discontinuation
- 1988-05-04 AU AU17112/88A patent/AU1711288A/en not_active Abandoned
- 1988-05-04 EP EP19880903989 patent/EP0394236A1/en not_active Ceased
-
1989
- 1989-10-27 DK DK538789A patent/DK538789A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO1988008739A1 (en) | 1988-11-17 |
| SE8701820D0 (en) | 1987-05-04 |
| AU1711288A (en) | 1988-12-06 |
| DK538789A (en) | 1989-11-03 |
| EP0394236A1 (en) | 1990-10-31 |
| SE8701820L (en) | 1988-11-05 |
| DK538789D0 (en) | 1989-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 8701820-6 Format of ref document f/p: F |
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| NUG | Patent has lapsed |