CH655859A5 - Filter element - Google Patents
Filter element Download PDFInfo
- Publication number
- CH655859A5 CH655859A5 CH3548/81A CH354881A CH655859A5 CH 655859 A5 CH655859 A5 CH 655859A5 CH 3548/81 A CH3548/81 A CH 3548/81A CH 354881 A CH354881 A CH 354881A CH 655859 A5 CH655859 A5 CH 655859A5
- Authority
- CH
- Switzerland
- Prior art keywords
- tubes
- filter
- filter element
- central tube
- support
- Prior art date
Links
- 239000004744 fabric Substances 0.000 claims abstract description 9
- 239000000706 filtrate Substances 0.000 claims abstract description 7
- 238000011001 backwashing Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 230000003670 easy-to-clean Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
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
- B01D29/11—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
- B01D29/15—Supported filter elements arranged for inward flow filtration
-
- 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
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- 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
- B01D29/62—Regenerating the filter material in the filter
- B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
-
- 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
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Filtering Materials (AREA)
Abstract
A filter element for a pressure filter container comprises a central tube (3) which is surrounded by a number of supporting tubes (4) in order to support the filter cloth (5). The supporting tubes (4) may be closed or perforated. The spaces between the central tube (3) and the supporting tubes (4) and also the interior in the case of perforated supporting tubes (4) serve as drainage channels for the filtrate. A simple and inexpensive filter element is provided by using plastic tubes. <IMAGE>
Description
**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **.
PATENTANSPRÜCHE
1. Filterelement zum Einbau in einen Druckfilterbehälter, bestehend aus einem Stützkörper, über welchen ein Filtergewebe gespannt ist, dadurch gekennzeichnet, dass der Stützkörper aus einem Bündel von Rohren (4) besteht, welches um ein Zentralrohr (3) angeordnet ist.
2. Filterelement nach Anspruch 1, dadurch gekennzeich- net, dass sechs Rohre (4) vom gleichen Durchmesser um das Zentralrohr (3) angeordnet sind.
3. Filterelement nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass das Zentralrohr (3) und die Rohre (4) gleichen Durchmesser aufweisen.
4. Filterelement nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass das Zentralrohr (3) eine geschlossene Oberfläche aufweist.
5. Filterelement nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, dass die Rohre (4) an ihren Wänden Öffnungen aufweisen.
6. Filterelement nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, dass die Rohre (4) des Stützkörpers aus Kunststoff gefertigt sind.
Die Erfindung betrifft ein Filterelement, das in das Gehäuse eines Druckfilters eingesetzt wird.
Ein Filterelement dieser Art ist aus der DE-AS 2 114 226 bekannt. Die darin verwendeten Filterschläuche sind mit verschiedenen Stützkörpern im Innern versehen. Die bekannten Filterelemente mit Stützkörpern haben eine Verbesserung der Filtrationseigenschaften gebracht. Durch den Einbau von Stützkörpern komplizierter Geometrie treten jedoch Schwierigkeiten während der Reinigung beim Rückspülen der Filterelemente auf. Die Konstruktion der Einsätze und der Filterelemente ist auch aufwendiger geworden und führte zu einer Verteuerung des gesamten Filters.
Aufgabe der Erfindung ist es, ein Filterelement zu schaffen, das in seiner Konstruktion einfach, stabil und leicht zu reinigen ist.
Diese Aufgabe wird erfindungsgemäss durch das in Anspruch 1 gekennzeichnete Filterelement gelöst, dessen Stützkörper aus einem Bündel von Rohren besteht, welches um ein Zentralrohr angeordnet ist.
Bei gleichem Durchmesser aller Rohre ergibt sich im Querschnitt die dichteste Packung durch Anordnung von 6 Rohren um das Zentralrohr herum. Es können aber auch unterschiedliche Durchmesser von Zentralrohr und Stützrohren zur Anwendung kommen. In der Regel ist die geschlossene Oberfläche des Zentralrohres die vorgezogene Ausführungsform. Die das Zentralrohr umgebenden Stützrohre weisen Öffnungen an den Längsseiten als besonders vorteilhaft auf. Dabei können die Öffnungen rund oder ekkig, quadratisch, rechteckig oder mehreckig ausgebildet sein.
Es können aber auch Rohre mit einer geschlossenen Oberflä che das Zentralrohr umgeben. Als besonders geeignetes Material haben sich Rohre aus Kunststoff erwiesen. Die Auswahl richtet sich weitgehend nach den chemischen Eigenschaften der Suspension, die filtriert werden soll. Auch Metallrohre sind geeignet, aus wirtschaftlichen Gründen sind jedoch Kunststoffrohre vorzuziehen.
Die Erfindung soll anhand einer Zeichnung näher beschrieben werden. Es zeigen schematisch
Figur 1 einen Längsschnitt durch das Filterelement,
Figur 2 einen Querschnitt durch das Filterelement,
Figuren 3 und 4 verschiedene Rohrbohrungen.
Das Filterelement besteht aus einem Boden 1 und einem Deckel 2. Um ein Zentralrohr 3 sind Stützrohre 4 in dichtester Packung angeordnet. Das Zentralrohr 3 weist eine geschlossene Rohrfläche auf. Die Stützrohre 4 können teilweise aus perforierten Rohren bestehen. Über das Rohrbündel ist ein Filtergewebe 5 derart gespannt, dass dieses während der Filtration von aussen nach innen eine wellenförmige Oberfläche bildet und im Zustand der Rückspülung einen runden Querschnitt aufweist. Das Filterelement kann mit einem Verschluss 6 in der nicht gezeigten Tragplatte eines Fil terkessels befestigt werden. Die obere Öffnung der Rohre 4 kann durch den Deckel 2 verschlossen oder einen Zwischenraum zwischen Deckel und oberen Rand aufweisen.
Die Verwendung von Rohren als Stützelemente für ein Filtergewebe hat den Vorteil, dass auf einfache Weise das Gewebe abgestützt und das Filtrat in den Zwischenräumen ablaufen kann. Es tritt in den unteren Teil des Zentralrohres ein und verlässt das Rohr durch seine obere Öffnung in den Filtratraum des Filterkessels. Der Filtratablauf wird durch Perforierung der Stützrohre wesentlich verbessert.
** WARNING ** beginning of DESC field could overlap end of CLMS **.
PATENT CLAIMS
1. Filter element for installation in a pressure filter container, consisting of a support body over which a filter fabric is stretched, characterized in that the support body consists of a bundle of tubes (4) which is arranged around a central tube (3).
2. Filter element according to claim 1, characterized in that six tubes (4) of the same diameter are arranged around the central tube (3).
3. Filter element according to claims 1 and 2, characterized in that the central tube (3) and the tubes (4) have the same diameter.
4. Filter element according to claims 1 to 3, characterized in that the central tube (3) has a closed surface.
5. Filter element according to claims 1 to 4, characterized in that the tubes (4) have openings on their walls.
6. Filter element according to claims 1 to 5, characterized in that the tubes (4) of the support body are made of plastic.
The invention relates to a filter element which is inserted into the housing of a pressure filter.
A filter element of this type is known from DE-AS 2 114 226. The filter bags used in it are provided with various support bodies on the inside. The known filter elements with support bodies have brought about an improvement in the filtration properties. Due to the installation of support bodies of complicated geometry, difficulties arise during cleaning when backwashing the filter elements. The design of the inserts and the filter elements has also become more complex and has made the entire filter more expensive.
The object of the invention is to provide a filter element which is simple, stable and easy to clean in its construction.
This object is achieved according to the invention by the filter element characterized in claim 1, the support body of which consists of a bundle of tubes which is arranged around a central tube.
With the same diameter of all tubes, the densest packing results in cross-section by arranging 6 tubes around the central tube. However, different diameters of the central tube and support tubes can also be used. As a rule, the closed surface of the central tube is the preferred embodiment. The support tubes surrounding the central tube have openings on the long sides as particularly advantageous. The openings can be round or angular, square, rectangular or polygonal.
However, pipes with a closed surface can also surround the central pipe. Plastic pipes have proven to be a particularly suitable material. The selection largely depends on the chemical properties of the suspension to be filtered. Metal pipes are also suitable, but plastic pipes are preferable for economic reasons.
The invention will be described in more detail with reference to a drawing. They show schematically
FIG. 1 shows a longitudinal section through the filter element,
FIG. 2 shows a cross section through the filter element,
Figures 3 and 4 different pipe bores.
The filter element consists of a base 1 and a cover 2. Support tubes 4 are arranged in the densest packing around a central tube 3. The central tube 3 has a closed tube surface. The support tubes 4 can partially consist of perforated tubes. A filter fabric 5 is stretched over the tube bundle in such a way that it forms an undulating surface during the filtration from the outside in and has a round cross section in the state of backwashing. The filter element can be fixed with a closure 6 in the support plate, not shown, of a filter tank. The upper opening of the tubes 4 can be closed by the cover 2 or have an intermediate space between the cover and the upper edge.
The use of tubes as support elements for a filter fabric has the advantage that the fabric can be supported in a simple manner and the filtrate can run off in the interspaces. It enters the lower part of the central pipe and leaves the pipe through its upper opening into the filtrate chamber of the filter kettle. The filtrate drain is significantly improved by perforating the support tubes.
Claims (6)
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3548/81A CH655859A5 (en) | 1981-06-01 | 1981-06-01 | Filter element |
NO821399A NO153677C (en) | 1981-06-01 | 1982-04-28 | FILTER ELEMENT. |
FI821541A FI70523C (en) | 1981-06-01 | 1982-05-03 | FILTER ELEMENT |
YU947/82A YU42462B (en) | 1981-06-01 | 1982-05-04 | Filtration element |
ZA823432A ZA823432B (en) | 1981-06-01 | 1982-05-18 | Filter element |
EP82200624A EP0066921B1 (en) | 1981-06-01 | 1982-05-24 | Filter element |
DE8282200624T DE3265595D1 (en) | 1981-06-01 | 1982-05-24 | Filter element |
AT82200624T ATE14990T1 (en) | 1981-06-01 | 1982-05-24 | FILTER ELEMENT. |
IN400/DEL/82A IN157999B (en) | 1981-06-01 | 1982-05-27 | |
JP57090012A JPS6043763B2 (en) | 1981-06-01 | 1982-05-28 | Filter member for installation in pressure filter container |
CA000404136A CA1189801A (en) | 1981-06-01 | 1982-05-31 | Filter element |
ES1982273596U ES273596Y (en) | 1981-06-01 | 1982-05-31 | FILTER ELEMENT |
AU84332/82A AU549532B2 (en) | 1981-06-01 | 1982-05-31 | Filter element |
US06/564,764 US4473472A (en) | 1981-06-01 | 1983-12-22 | Filter element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3548/81A CH655859A5 (en) | 1981-06-01 | 1981-06-01 | Filter element |
Publications (1)
Publication Number | Publication Date |
---|---|
CH655859A5 true CH655859A5 (en) | 1986-05-30 |
Family
ID=4258355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH3548/81A CH655859A5 (en) | 1981-06-01 | 1981-06-01 | Filter element |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS6043763B2 (en) |
CH (1) | CH655859A5 (en) |
ZA (1) | ZA823432B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020247806A1 (en) * | 2019-06-05 | 2020-12-10 | Ceco Environmental Ip Inc. | Self-cleaning filter |
-
1981
- 1981-06-01 CH CH3548/81A patent/CH655859A5/en not_active IP Right Cessation
-
1982
- 1982-05-18 ZA ZA823432A patent/ZA823432B/en unknown
- 1982-05-28 JP JP57090012A patent/JPS6043763B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020247806A1 (en) * | 2019-06-05 | 2020-12-10 | Ceco Environmental Ip Inc. | Self-cleaning filter |
Also Published As
Publication number | Publication date |
---|---|
JPS6043763B2 (en) | 1985-09-30 |
JPS57204208A (en) | 1982-12-14 |
ZA823432B (en) | 1983-03-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |