DE696676C - Device for removing the filter cake from rotary cell filters - Google Patents
Device for removing the filter cake from rotary cell filtersInfo
- Publication number
- DE696676C DE696676C DE1937W0104286 DEW0104286D DE696676C DE 696676 C DE696676 C DE 696676C DE 1937W0104286 DE1937W0104286 DE 1937W0104286 DE W0104286 D DEW0104286 D DE W0104286D DE 696676 C DE696676 C DE 696676C
- Authority
- DE
- Germany
- Prior art keywords
- cake
- filter cake
- scrapers
- cell filters
- rotary cell
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/465—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element take-off rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/28—Position of the filtering element
- B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
Description
Vorrichtung zur Abnahme des Filterkuchens von Zellendrehfiltern Gegenstand der Erfindung ist eine weitere Ausbildung der Streifenschaber nach Patent 676 189, bei dem die Schaber stechend oder schneidend den Kuchenstreifen aus der ,auf der Abnahmewalze liegenden Kuchenschicht, herausheben. Hierbei ist es bisweilen naateilig, daß der Kuchenstreifen sich ;am Schaber zusammenschiebt, weil er .am Schaber klebt. Dann werden nicht mehr gleichmäßig hreäte und tiefe Rillen in die Kuchenschicht ge- schnitten, sondern ungleichmäßige Flächen aus der Kuchenschicht herausgerissen, die die gleichmäßige Abnahme .des Kuchens vom. Filter verhindern und dadurch die Leistung des Filtersherabsetzen.Device for removing the filter cake from rotary cell filters The subject of the invention is a further embodiment of the strip scraper according to patent 676 189, in which the scraper lifts the cake strip out of the cake layer lying on the removal roller by piercing or cutting. Here it is sometimes inevitable that the cake strip should be pushed together on the scraper because it sticks to the scraper. Then no longer uniform hreäte and deep grooves are cut into the overall cake layer, but torn uneven surfaces of the cake layer uniform decrease .of the cake from. Prevent filters and thereby reduce the performance of the filter.
Erfindungsgemäß wird dieser Nachteil dadurch behoben, daß die Streifenschaber so schnell bewegt werden, daß die Kuchenstreifen herausgefräst und dann abgeschleudert werden, beispielsweise in der Art, daß die Streifenschaber an einer schnell umlaufenden Achse befestigt sind.According to the invention, this disadvantage is eliminated in that the strip scraper be moved so quickly that the cake strips are milled out and then thrown off be, for example in the way that the strip scraper on a fast rotating Axis are attached.
Durch derartige Schaber werden in die auf der Abnahmewalze klebende dicke Kuchenschicht Rillen eingeschnitten, die sich beim Abwälzen auf der Filterfläche mehr oder weniger schließen, je nachdem eb sich an der nicht vollkommen zylindrischen Form der Trommel Aus- oder Einbuchtungen befinden. Maßgebend ist, daß die Menge der herausgeschnittenen Kuchenstreifen -der laufend hinzukommenden dünnen Kuchenschichtmenge auf der gesamten Trommelbreite entspricht.Such scrapers are sticking to the take-off roller Grooves cut into a thick layer of cake, which are formed when rolling on the filter surface more or less close, depending on the eb at the not perfectly cylindrical Shape of the drum bulges or indentations are located. What matters is that the amount the cut-out cake strips - the continuously added thin cake layer amount over the entire width of the drum.
Die umlaufenden Schaber können wie beim Patent 676 189 aus Blechstreifen o. dgl. bestehen. Da. faber trotz der hohen Drehzahl doch noch Teile des Kuchens die Schaber verschmieren können, ist es zweckmäßig, die Schaber ,aus haarnadelförmigen Drahtbügeln herzustellen. Abb. i der Zeichnung stellt den Erfindungsgegenstand beispielsweise meinem Querschnitt durch die Filtertrommel und Abnahmewalze. mit umlaufenden schmalen Blechstreiferi-`'. schabern dar.The rotating scrapers can as o of sheet metal strip at the German patent 676 1 89. Like. Exist. There. If, despite the high speed, parts of the cake can still smear the scrapers, it is advisable to make the scrapers from hairpin-shaped wire hangers. Fig. I of the drawing represents the subject of the invention, for example, my cross-section through the filter drum and take-off roller. with narrow sheet metal strips all around. scrape it.
Abb. 2 zeigt die Einrichtung der Abb. r <' `,@ ; Seitenansicht mit Schnitt durch die Abnahm-`ä walze. .Fig. 2 shows the device of Fig. R <'`, @; Side view with a cut through the take-off roller. .
Abb. 3 zeigt die gleiche Einrichtung, jedoch mit haarnadelförmig gebogenen Drahtbügelschabern.Fig. 3 shows the same device, but with a curved hairpin Wire hanger scrapers.
Die nur teilweise gezeichnete Filtertrommela arbeitet mit -der Abnahmewalze b zusammen, die mit einer dicken, klebenden Kuchenschichte bedeckt ist. Der Filterkuchen d wird von der auf der Abnahmewalze befindlichen Kuchenschicht c laufend übernommen und im gleichen Maße von den an der umlaufenden Achse h befestigten .schmalen Schabern i in Streifen g laufend herausgefräst und abgeschleudert.The only partially drawn filter drum works with the take-off roller b, which is covered with a thick, sticky cake layer e . The filter cake d is continuously taken over by the cake layer c located on the take-off roller and continuously milled out and thrown off in strips g by the narrow scrapers i attached to the rotating axis h.
in Abb. 2 bestehen die schmalen Schaber i aus Blechstreifen; in Abb. 3 sind in die Achse Drahtbügel eingesteckt, deren Form den aus der Kuchenschicht herauszuschneidenden Streifen entspricht. Als besonders zweckmäßig hat sich eine haarnadelförmige Ausbildung dieser Bügel :erwiesen, bei der außerdem die Schenkel nach der Befestigungsstelle an der Achse h hin etwas auseinanderlaufen, um das @:TD:urchfallen des abgeschnittenen Kuchen-F stk-eifens zu erleichtern.In Fig. 2 the narrow scrapers i are made of sheet metal strips; in fig. 3 wire hangers are inserted into the axis, the shape of which corresponds to that of the cake layer corresponds to the strips to be cut out. One has proven to be particularly useful hairpin-shaped design of these stirrups: proven, in addition, the thighs diverge a little after the attachment point on the axis h, so that the @: TD: fall through of the cut cake stick to facilitate.
#xI3ie Vorrichtung gemäß Erfindung ist für -=Abnahmewalzen ,aller Art geeignet, z. B. für Walzen mit bekannter rauher Oberfläche, für Walzen mit unterschnittenen und nicht unterschnittenen Vertiefungen, die ein besseres Haften des Kuchens auf der Walzenoberfläche sichern sollen.The device according to the invention is for - = take-off rollers, all Kind of suitable, e.g. B. for rollers with a known rough surface, for rollers with undercut and not undercut indentations that allow the cake to stick better to secure the roller surface.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1937W0104286 DE696676C (en) | 1934-08-29 | 1937-11-06 | Device for removing the filter cake from rotary cell filters |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW95769D DE671703C (en) | 1934-08-29 | 1934-08-29 | Device for removing the filter cake from rotary cell filters |
| DE1937W0104286 DE696676C (en) | 1934-08-29 | 1937-11-06 | Device for removing the filter cake from rotary cell filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE696676C true DE696676C (en) | 1940-09-26 |
Family
ID=26003230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1937W0104286 Expired DE696676C (en) | 1934-08-29 | 1937-11-06 | Device for removing the filter cake from rotary cell filters |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE696676C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE974691C (en) * | 1953-06-11 | 1961-03-30 | Buckau Wolf Maschf R | Device for removing the filter cake from rotary filters |
-
1937
- 1937-11-06 DE DE1937W0104286 patent/DE696676C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE974691C (en) * | 1953-06-11 | 1961-03-30 | Buckau Wolf Maschf R | Device for removing the filter cake from rotary filters |
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