DE1014523B - Filter insert for precoat filters in chemical cleaning systems - Google Patents
Filter insert for precoat filters in chemical cleaning systemsInfo
- Publication number
- DE1014523B DE1014523B DEJ11087A DEJ0011087A DE1014523B DE 1014523 B DE1014523 B DE 1014523B DE J11087 A DEJ11087 A DE J11087A DE J0011087 A DEJ0011087 A DE J0011087A DE 1014523 B DE1014523 B DE 1014523B
- Authority
- DE
- Germany
- Prior art keywords
- filter
- chemical cleaning
- cleaning systems
- filter insert
- precoat filters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims description 6
- 239000000126 substance Substances 0.000 title claims description 5
- 239000012065 filter cake Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000029058 respiratory gaseous exchange Effects 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003623 enhancer Substances 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
- B01D29/41—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 mounted transversely on the tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Description
Filtereinsatz für Anschwemmfilter in chemischen Reinigungsanlagen Die Erfindung betrifft einen Filtereinsatz für Anschwemmfilter in chemischen Reinigungsanlagen, indem der Filtertragfläche durch die besondere Formgebung eine große Atmungsamplitude ermöglicht wird und dadurch ein automatisches Abfallen des Filterkuchens herbeigeführt werden kann.Filter insert for precoat filters in chemical cleaning systems The invention relates to a filter insert for precoat filters in chemical cleaning systems, by giving the filter support surface a large breathing amplitude due to the special shape is made possible and thereby causes the filter cake to fall off automatically can be.
Es sind zylindrische Filtereinsätze bekannt, die aus einer Vielzahl von parallelen Stäben oder Drähten bestehen, wobei die Drähte oder Stäbe parallel zur Zylinderachse liegen. Ebenso sind plattenförmige Filtereinsätze bekannt, welche unter Verwendung eng aneinanderliegender Drähte oder Stäbe aufgebaut sind. There are cylindrical filter cartridges known from a variety consist of parallel rods or wires, the wires or rods being parallel lie to the cylinder axis. Plate-shaped filter inserts are also known which are constructed using tightly spaced wires or rods.
Um ein Durchbiegen dieser Drähte zu vermeiden, was zu einer Vergrößerung des Durchfluß spaltes führen würde, müssen diese Drähte oder Stäbe von innen gestützt werden. Durch die Stützung kann sich die Filterfläche nicht mehr atmungsartig bewegen, wodurch ein Abfallen des Filterkuchens erschwert wird.To avoid bending these wires, resulting in enlargement of the flow gap would result, these wires or rods must be supported from the inside will. Due to the support, the filter surface can no longer move in a breathable manner, which makes it difficult for the filter cake to fall off.
Neben diesen Filtereinsätzen aus Drähten oder Stäben sind noch Filtereinsätze bekannt, die aus Drabtuetzen oder durchbrochenen Scheiben bestehen. Um eine günstige Gesamtdurchflußöffnung zu erzielen, werden die Netze oder Scheiben aus sehr dünnem Material hergestellt und müssen dann, um sich nicht zu verbiegen, ebenfalls durch stärkeres Material von innen gestützt werden. Durch diese Stützung geht aber die Möglichkeit für eine Atmung der Filterfläche weitestgehend verloren. Bei Filtern in chemischen Reinigungsanlagen ist man darauf angewiesen, daß der Filterkuchen bei Chargenwechsel leicht abfällt. Dieses Abfallen wird durch die Zusätze an Reinigungsverstärkern erschwert, welche das angeschwemmte Filtermaterial schmierig und am Tragkörper haftend machen. Aus diesem Grunde sind viele Anschwemmfilter nur als Mehrchargenfilter zu gebrauchen, weil nur durch das mehrmalige Anschwemmen das Gewicht des Filterkuchens so groß wird, daß bei Aufhören des Pumpendruckes der Filterkuchen durch seine Schwere abfällt. Sehr oft muß dieses Abfallen noch durch eine Rückspülung gefördert werden.In addition to these filter inserts made of wires or rods, there are also filter inserts known, which consist of Drabtuetzen or perforated panes. To a cheap To achieve total flow opening, the nets or disks are made of very thin Material made and must then, in order not to bend, also through stronger material can be supported from the inside. But this support goes through The possibility of breathing the filter surface is largely lost. With filters In chemical cleaning systems one is dependent on the fact that the filter cake drops slightly when changing batches. This decrease is due to the addition of cleaning enhancers makes it difficult for the alluvial filter material to become greasy and stick to the support body do. For this reason, many precoat filters are only available as multi-batch filters because the weight of the filter cake is only due to the repeated flooding becomes so large that when the pump pressure ceases, the filter cake due to its weight falls off. Very often this fall still has to be promoted by backwashing.
Demgegenüber ist der erfindungsgemäße Filtereinsatz fürAnschwemmfilter dadurch gekennzeichnet, daß die einzelnen Filterkörper für die Auschweminschicht eine wellblechartige Form besitzen, wobei die einzelnen Wellenberge und Wellentäler vom Mittelpunkt des Filterkörpers ausgehend kreisrund nach der Außenumrandung des Filterkörpers verlaufen (Fig. 1 und 2). Durch diese Form des Filterkörpers wird bewirkt, daß dieser aus einer dünnen Scheibe bestehen kann, weil diese wellblechartige Form die Scheibe versteift, so daß ein stärkerer Stützkörper entbehrlich ist. Durch den Fortfall eines Stützkörpers und durch die dünne Scheibe kann nunmehr der Filterkörper in eine große Atmungsamplitude versetzt werden. Für die Erfindung selber ist es unwesentlich, ob die Scheibe aus einem Drahtnetz oder einer durchbrochenen Scheibe od. dgl. besteht. Wesentlich ist, daß die Wellenberge und -täler kreisrund und um die Scheibenachse angeordnet sind und die Durchflußöffnungen parallel zur Scheibenachse verlaufen. In contrast, the filter insert according to the invention is for precoat filters characterized in that the individual filter bodies for the Auschweminschicht have a corrugated sheet-like shape, with the individual wave crests and wave troughs starting from the center of the filter body circular to the outer edge of the Filter body run (Fig. 1 and 2). This shape of the filter body is causes that this can consist of a thin disc, because this corrugated sheet-like shape the disc stiffened, so that a stronger support body is unnecessary. Through the Elimination of a support body and the filter body can now through the thin disk be placed in a large breathing amplitude. For the invention itself it is It is irrelevant whether the pane is made from a wire mesh or an openwork pane or the like. It is essential that the wave crests and valleys are circular and around the disk axis are arranged and the flow openings parallel to the disk axis get lost.
Fig. 3 stellt ein Filter mit mehreren Filtereinsätzen dar. Fig. 3 shows a filter with several filter cartridges.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEJ11087A DE1014523B (en) | 1955-12-27 | 1955-12-27 | Filter insert for precoat filters in chemical cleaning systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEJ11087A DE1014523B (en) | 1955-12-27 | 1955-12-27 | Filter insert for precoat filters in chemical cleaning systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1014523B true DE1014523B (en) | 1957-08-29 |
Family
ID=7198957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEJ11087A Pending DE1014523B (en) | 1955-12-27 | 1955-12-27 | Filter insert for precoat filters in chemical cleaning systems |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1014523B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755034A (en) * | 1994-03-23 | 1998-05-26 | Nagase & Co., Ltd. | Method for manufacturing a hub ring for a filter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE411516C (en) * | 1920-07-13 | 1925-03-30 | Seitz Werke Theo & Geo Seitz F | Filter press |
| DE465881C (en) * | 1926-01-03 | 1928-09-25 | Vulkan Werke Akt Ges Fuer Brau | Filters for carbonated liquids |
| DE830937C (en) * | 1948-10-02 | 1952-02-07 | Egon Wunderlich Dipl Ing | Filters with devices for mechanical emptying of filter residues |
| DE1700712U (en) * | 1953-11-04 | 1955-06-16 | Friedrich August Beutler | FILTER. |
-
1955
- 1955-12-27 DE DEJ11087A patent/DE1014523B/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE411516C (en) * | 1920-07-13 | 1925-03-30 | Seitz Werke Theo & Geo Seitz F | Filter press |
| DE465881C (en) * | 1926-01-03 | 1928-09-25 | Vulkan Werke Akt Ges Fuer Brau | Filters for carbonated liquids |
| DE830937C (en) * | 1948-10-02 | 1952-02-07 | Egon Wunderlich Dipl Ing | Filters with devices for mechanical emptying of filter residues |
| DE1700712U (en) * | 1953-11-04 | 1955-06-16 | Friedrich August Beutler | FILTER. |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755034A (en) * | 1994-03-23 | 1998-05-26 | Nagase & Co., Ltd. | Method for manufacturing a hub ring for a filter |
| US5788860A (en) * | 1994-03-23 | 1998-08-04 | Nagase & Co., Ltd. And Kabushiki Kaisha Toukai Spring Seisakusho | Method for manufacturing a supporting plate for a filter |
| US5829138A (en) * | 1994-03-23 | 1998-11-03 | Nagase & Co., Ltd. | Hub ring and supporting plate for a filter and methods for manufacturing these members |
| US5858230A (en) * | 1994-03-23 | 1999-01-12 | Nagase & Co. Ltd. | Hub ring and supporting plate for a filter |
| USRE36133E (en) * | 1994-03-23 | 1999-03-09 | Nagase & Co. Ltd. | Hub ring and supporting plate for a filter and methods for manufacturing these members |
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