WO1996022145A1 - Material zur filtration von viskosen flüssigkeiten - Google Patents
Material zur filtration von viskosen flüssigkeiten Download PDFInfo
- Publication number
- WO1996022145A1 WO1996022145A1 PCT/EP1996/000142 EP9600142W WO9622145A1 WO 1996022145 A1 WO1996022145 A1 WO 1996022145A1 EP 9600142 W EP9600142 W EP 9600142W WO 9622145 A1 WO9622145 A1 WO 9622145A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter
- material according
- dirt
- filtration
- fineness
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
- B01D2239/0208—Single-component fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0654—Support layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1216—Pore size
Definitions
- the present invention relates to a novel material that can be used for the filtration of viscous liquids, in particular water-based paints.
- the disadvantage of this method is that it is very time consuming. For this reason, there are methods in which the filter bags are not connected in series but in parallel. But even with this approach, the results are still not satisfactory. In particular, the time required is still too long.
- the present invention therefore has the task of providing a material for the filtration of viscous liquids, by means of which the filtration of dirt and crater-causing substances can be accomplished in one process step with a considerably shorter time expenditure than previous processes.
- this object can be achieved in that the material is composed of at least two layers with different filter selectivity.
- the material according to the invention preferably consists of two layers, one of which acts as a dirt filter and the other as an adsorption filter. Possibly. can be provided a third layer, which serves as a support fabric.
- the filter fineness (pore sizes) of the dirt filter and
- Adso ⁇ tionsfilter für preferably have a certain relationship to each other. This can range from 10: 1 to 2: 1. A ratio of 5: 1 is particularly preferred.
- the filter fineness of the dirt filter layer is usually up to 100 ⁇ m. 1 to 5 ⁇ m are preferred.
- the filter fineness of the adsorption filter layer is up to 50 ⁇ m. 1 to 2 ⁇ m are preferred here.
- materials of the individual layers differ in their chemical composition and / or microstructure.
- they can consist of polypropylene, the dirt filter layer having a needle felt and the adsorption filter layer having a microfiber structure.
- needle felts have a higher dirt holding capacity and allow a certain depth filtration.
- the microfiber structure on the other hand, consists of even finer fibers. This results in high excretion rates of approx. 98%.
- the polypropylene microfibers also have oil-absorbing properties.
- the filter layers are preferably used in the form of bags. These are usually available in a conventional design with a metal ring. Here the individual layers are put together to form a bead. This can be done with all common fastening methods, e.g. done by welding.
- Figure 1 shows an example of the layering of the filter material according to the invention.
- Number 6 denotes the dirt filter layer, number 7 the crater filtration layer and number 8 the support fabric.
- layer 6 consists of polypropylene needle felt, layer 7 of polypropylene microfiber and layer 8 of a nylon fabric.
- FIGs 2 and 3 the handling according to the invention is shown in the form of bag filters. These are particularly easy to use. A perfect seal of the bag can be achieved via the closure collar 1. At the same time, this construction enables easy installation because the bag centers itself.
- Used bags can be disposed of easily, for example by ashless burning.
- the filter bags can also be produced in a conventional design with a metal ring.
- the bead 4 produced in this embodiment requires considerable contact pressure so that the risk of a “bypass” is kept as low as possible.
- the bag filters according to the invention have shown surprising effects which are improved compared to the prior art.
- the problem of largely ineffective filter cartridges in the removal of crater-causing substances in paints was finally solved.
- the overall more effective use of the filter materials means that surprisingly little filter material has to be used. Where previously around 36 cartridges were necessary, surprisingly only 2 bags have to be used. At the same time, this requires considerable cost savings. In particular, the time and cost of cleaning and filter material disposal are considerably less. With the reduced use of filters, the emissions from the disposal of the filter material also decrease.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8522028A JPH10512803A (ja) | 1995-01-18 | 1996-01-15 | 粘性の液体を濾過するための材料 |
EP96900956A EP0804270B1 (de) | 1995-01-18 | 1996-01-15 | Material zur filtration von viskosen flüssigkeiten |
AT96900956T ATE201831T1 (de) | 1995-01-18 | 1996-01-15 | Material zur filtration von viskosen flüssigkeiten |
DE59607045T DE59607045D1 (de) | 1995-01-18 | 1996-01-15 | Material zur filtration von viskosen flüssigkeiten |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19501297.6 | 1995-01-18 | ||
DE19501297A DE19501297A1 (de) | 1995-01-18 | 1995-01-18 | Material zur Filtration von viskosen Flüssigkeiten |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996022145A1 true WO1996022145A1 (de) | 1996-07-25 |
Family
ID=7751704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/000142 WO1996022145A1 (de) | 1995-01-18 | 1996-01-15 | Material zur filtration von viskosen flüssigkeiten |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0804270B1 (de) |
JP (1) | JPH10512803A (de) |
AT (1) | ATE201831T1 (de) |
DE (2) | DE19501297A1 (de) |
WO (1) | WO1996022145A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016061178A1 (en) * | 2014-10-14 | 2016-04-21 | Flsmidth A/S | Low deformation filter media |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004638A1 (en) * | 1986-02-07 | 1987-08-13 | W. Schmidt Gmbh & Co. Kg | Filter, in particular for a paint recycling installation |
JPH04145914A (ja) * | 1990-10-04 | 1992-05-19 | Daiwabo Create Kk | カートリッジフィルター |
US5156661A (en) * | 1992-01-31 | 1992-10-20 | Pall Corporation | Bag filter with thermoplastic tape-sealed sewn seam |
WO1993011849A1 (en) * | 1991-12-10 | 1993-06-24 | Pall Corporation | A filter and filtration method |
EP0564799A2 (de) * | 1992-04-10 | 1993-10-13 | Christian Heinrich Sandler GmbH & Co. KG | Mehrschichtiges Filtermaterial |
JPH06233907A (ja) * | 1993-02-09 | 1994-08-23 | Kansai Paint Co Ltd | 水性塗料の濾過処理方法および装置 |
EP0634200A2 (de) * | 1993-07-15 | 1995-01-18 | Fuji Photo Film Co., Ltd. | Verfahren zur Filtrierung von thixotropen Flüssigkeiten und Filtriervorrichtung zum Gebrauch bei dem Verfahren |
-
1995
- 1995-01-18 DE DE19501297A patent/DE19501297A1/de not_active Withdrawn
-
1996
- 1996-01-15 JP JP8522028A patent/JPH10512803A/ja active Pending
- 1996-01-15 DE DE59607045T patent/DE59607045D1/de not_active Expired - Lifetime
- 1996-01-15 EP EP96900956A patent/EP0804270B1/de not_active Expired - Lifetime
- 1996-01-15 AT AT96900956T patent/ATE201831T1/de not_active IP Right Cessation
- 1996-01-15 WO PCT/EP1996/000142 patent/WO1996022145A1/de active IP Right Grant
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004638A1 (en) * | 1986-02-07 | 1987-08-13 | W. Schmidt Gmbh & Co. Kg | Filter, in particular for a paint recycling installation |
JPH04145914A (ja) * | 1990-10-04 | 1992-05-19 | Daiwabo Create Kk | カートリッジフィルター |
WO1993011849A1 (en) * | 1991-12-10 | 1993-06-24 | Pall Corporation | A filter and filtration method |
US5156661A (en) * | 1992-01-31 | 1992-10-20 | Pall Corporation | Bag filter with thermoplastic tape-sealed sewn seam |
EP0564799A2 (de) * | 1992-04-10 | 1993-10-13 | Christian Heinrich Sandler GmbH & Co. KG | Mehrschichtiges Filtermaterial |
JPH06233907A (ja) * | 1993-02-09 | 1994-08-23 | Kansai Paint Co Ltd | 水性塗料の濾過処理方法および装置 |
EP0634200A2 (de) * | 1993-07-15 | 1995-01-18 | Fuji Photo Film Co., Ltd. | Verfahren zur Filtrierung von thixotropen Flüssigkeiten und Filtriervorrichtung zum Gebrauch bei dem Verfahren |
Non-Patent Citations (5)
Title |
---|
CHEMICAL ABSTRACTS, vol. 122, no. 8, 20 February 1995, Columbus, Ohio, US; abstract no. 83763, H. HAISHI ET AL.: "filtration process and apparatus for aqueous coatings" * |
DATABASE WPI Section Ch Week 9226, Derwent World Patents Index; Class A12, AN 92-214430 * |
DATABASE WPI Section Ch Week 9438, Derwent World Patents Index; Class A04, AN 94-307234 * |
PATENT ABSTRACTS OF JAPAN vol. 16, no. 425 (C - 0982) 7 September 1992 (1992-09-07) * |
PATENT ABSTRACTS OF JAPAN vol. 18, no. 610 (C - 1276) 21 November 1994 (1994-11-21) * |
Also Published As
Publication number | Publication date |
---|---|
DE59607045D1 (de) | 2001-07-12 |
DE19501297A1 (de) | 1996-07-25 |
EP0804270A1 (de) | 1997-11-05 |
JPH10512803A (ja) | 1998-12-08 |
ATE201831T1 (de) | 2001-06-15 |
EP0804270B1 (de) | 2001-06-06 |
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