DE2605929A1 - Rotary filter with external shaft bearings - has no shaft seals, permitted leakage being recycled to trough - Google Patents

Rotary filter with external shaft bearings - has no shaft seals, permitted leakage being recycled to trough

Info

Publication number
DE2605929A1
DE2605929A1 DE19762605929 DE2605929A DE2605929A1 DE 2605929 A1 DE2605929 A1 DE 2605929A1 DE 19762605929 DE19762605929 DE 19762605929 DE 2605929 A DE2605929 A DE 2605929A DE 2605929 A1 DE2605929 A1 DE 2605929A1
Authority
DE
Germany
Prior art keywords
trough
shaft
rotary filter
suspension
bearings
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.)
Granted
Application number
DE19762605929
Other languages
German (de)
Other versions
DE2605929C3 (en
DE2605929B2 (en
Inventor
Heinrich Dipl Ing Loos
Werner Dr Ing Stahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mannesmann Demag Krauss Maffei GmbH
Original Assignee
Krauss Maffei AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Krauss Maffei AG filed Critical Krauss Maffei AG
Priority to DE2605929A priority Critical patent/DE2605929C3/en
Publication of DE2605929A1 publication Critical patent/DE2605929A1/en
Publication of DE2605929B2 publication Critical patent/DE2605929B2/en
Application granted granted Critical
Publication of DE2605929C3 publication Critical patent/DE2605929C3/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/06Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/067Construction of the filtering drums, e.g. mounting or sealing arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/06Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/80Accessories
    • B01D33/801Driving means, shaft packing systems or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/28Position of the filtering element
    • B01D2201/282Filtering elements with a horizontal rotation or symmetry axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14Safety devices specially adapted for filtration; Devices for indicating clogging

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)
  • Rotary Pumps (AREA)

Abstract

A rotary filtration plant has a filter (e.g. of drum or disc type) mounted on a shaft which is immersed in the suspension to be filtered in a trough. The shaft bearings are located outside the trough, and the shaft protrudes through openings in the ends of the trough which are slightly larger in dia. than the shaft. The use of seals, which are inevitably troublesome, is eliminated.

Description

Die Drfindung betrifft ein Drehfilter nach dem Oberbegriff des Anspruchs 1. Bei bekannten Drehfiltern befindet sich die Lagerung der Welle unmittelbar an den Stirnwänden des Troges, wobei zwecks Abdichtung Stopfbüchsen oder andere Dichtungsanordiiungen vorgesehen sind. Derartige Dichtungsanordnungen sind nicht nur aufwendig, sondern auch dem Verschleiß unterworfen und müssen dementsprechendThe invention relates to a rotary filter according to the preamble of the claim 1. In known rotary filters, the bearing of the shaft is directly on the end walls of the trough, with stuffing boxes or other sealing arrangements for the purpose of sealing are provided. Such sealing arrangements are not only expensive, but also also subject to wear and tear and must accordingly

in zeitlichen Abständen ausgewechselt werden, Ferner werden die im Bereich der Dichtungsanordnungen liegenden Wellen stark eingeschnürt, was nicht nur zu höheren Antriebsleistungen führt, sondern auch zu Verschleißerscheinungen auf der Welle selbst, so daß die Dichtungsanordnungen nicht einwandfrei auf der Welle sitzell. Letztere geben somit Anlaß zu Ärger und Betriebsstörungen, wenn sie nicht für genügende Abdichtung sorgen.be replaced at regular intervals. Furthermore, the im Waves lying in the area of the sealing arrangements are strongly constricted, which is not only leads to higher drive power, but also to signs of wear on the shaft itself, so that the sealing arrangements are not properly on the Shaft Sitzell. The latter give rise to anger and breakdowns when they do not provide sufficient sealing.

Der Erfindung lie-gt die Aufgabe zugrunde, die genannten Nachteile set eher Dichtungsancrdnungen zu vermeiden und wolle dieselben auszukommen.The invention is based on the stated disadvantages set rather to avoid sealing conditions and want to get along with the same.

Die Aufgabe wird erfindungsgemäß durch die Maßnahmen nach dem kennzeichen des Anspruchs l gelöst, Es wird somit bewußt eine geringfügige Leckage herbeigeführt, weil dabei jegliche Dichtungsanordnung an den Wellenenden entfallen kann, somit auch jeder Verschleiß des Dichtmittels und der Welle0 Diese Vorteile überwiegen den lediglich einmal bei der Herstellung auftretenden Aufwand, der darin besteht, die Welle um ein geringes Maß zu verlängern. Die durch die Öffnungen in kleiner Menge fließende Suspension strömt bei tiefer liegendem Sammelbehälter (für die Suspension) diesem einfach zu und wird bei höher liegendem Sammelbehälter mittels einer Pumpe hinaufgepumpt. Dabei kann die Pumpe bei Erreichen eines bestimmten Suspensionsstandes in einem Sammelraum automatisch einschaltbar sein.The object is achieved according to the invention by the measures according to the mark of claim l solved, it is thus deliberately caused a minor leakage, because any sealing arrangement on the shaft ends can be dispensed with, thus also any wear of the sealant and the shaft0 These advantages outweigh the effort that occurs only once in production, which consists of to lengthen the shaft by a small amount. The through the openings in smaller Amount of flowing suspension flows in the case of a lower-lying collecting container (for the suspension) This is easy to do and is used with a higher-lying collecting container by means of one Pump pumped up. When a certain suspension level is reached, the pump can be switched on automatically in a collecting room.

Aus der DT-AS 12 23 344 ist zwar eine Lagerung der einen Trommelr.lalltel tragenden Welle bekannt, wobei die Lager außerhalb der Stirnwand des Troges angeordnet sind. Diese Anordnung verfolgt jedoch einen anderen Zweck, was allein schon daraus hervorgeht, daß die Abdichtung des Troges gegenüber der Suspension mit den bekannten Di chtungs alle rdiiungen vorgenommen wird Weiterbildungen der Erfindung sind den Unteransprüchen entnehiar. Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigen: Fig. 1 das Schema eines Trommelfilters in einem Längsmittelschnitt und Fig. 2 in einer Seitenansicht.From the DT-AS 12 23 344 there is a bearing of one drum r bearing shaft known, with the bearings arranged outside the end wall of the trough are. However, this arrangement has a different purpose, which is evident from that it can be seen that the sealing of the trough against the suspension with the known All adjustments are made Subclaims denehiar. An embodiment of the invention is shown in the drawing shown. They show: FIG. 1 the diagram of a drum filter in a longitudinal center section and FIG. 2 in a side view.

Ein in Fig. 1 und 2 dargestelltes Trommelfilter weist einen Trog 1 für die Aufnahme der zu filternden Suspension 2 auf. In diesem Trog l taucht eine zylindrische Filtertrommel 3 ein, welche mittels eines nicht dargestellten Antriebs um die Achse (Welle 4) drehbar ist. Die Welle 4 ist nicht auf den Stirnwänden 5 des Troges 1 gelagert; die Lager 6 ruhen vielmehr auf außen an den Stirnwänden 5 befestigten Taschen 7, und zwar an deren stirnseitiger Außenwand 12. Die B»lden der ltelle 4 führen durch die Stirnwände 5 hindurch, und zwar durch eine Öffnung 8, die etwas größer als die Welle 4 an dieser Stelle ist, so daß hier eine Leckage (Pfeil p) vorhanden ist.A drum filter shown in FIGS. 1 and 2 has a trough 1 for taking up the suspension to be filtered 2. One dives into this trough cylindrical filter drum 3, which by means of a drive, not shown is rotatable about the axis (shaft 4). The wave 4 is not on that End walls 5 of the trough 1 mounted; the bearings 6 rather rest on the outside of the Pockets 7 attached to end walls 5, specifically on their end outer wall 12. The shutters of the point 4 lead through the end walls 5, specifically through one Opening 8, which is slightly larger than the shaft 4 at this point, so that here one Leakage (arrow p) is present.

Die Leckflüssigkeit fließt in die als Sammelbehalter ausgebildeten Taschen 7 und wird über Rohrstutzen 10 abgeleitet und auf nicht dargestellte Weise der Trog 1 wieder zugeführt. Die linke Tasche 7 (Fig. 1) weist ferner eine Überlaufkante 11 auf. Din auf der Welle 4 zwischen dem Lager 6 und der Öffnung 8 befestigter Abstreifring 13 verhindert, daß die teckflüssigkeit über die Welle 4 zum Lager 6 gelangt.The leakage fluid flows into the container designed as a collecting tank Bags 7 and is derived via pipe socket 10 and in a manner not shown the trough 1 is supplied again. The left pocket 7 (Fig. 1) also has an overflow edge 11 on. Din on the shaft 4 between the bearing 6 and the opening 8 fixed wiper ring 13 prevents the spill fluid from reaching the bearing 6 via the shaft 4.

L e e r s e i t eL e r s e i t e

Claims (4)

Drehfilter Patentansprüche 1. Drehfilter mit einem auf einer Welle angeordneten Filter (z.B. Trommelfilter oder Scheibenfiltcr), mit einem mit der Suspension füllbaren Trog und mit Lagern für die Welle im Bereich der Stirnseiten des Troges, wobei der Trog so ausgebildet ist, daß er eine die Welle erfassende Füllung zuläßt, dadurch gekennzeichnet, daß die Lager (6) außerhalb der Stirnwände (5) des Troges (1) angeordnet sind rnd daß die Welle (4) durch die Stirnwände in Form von Öffnungen (8) hindurchgeführt ist, deren Durchmesser nur wenig größer als der der Welle ist. Rotary filter claims 1. Rotary filter with one on a shaft arranged filter (e.g. drum filter or disc filter), with one with the Suspension fillable trough and with bearings for the shaft in the area of the end faces of the trough, the trough being designed so that it engages a shaft Filling allows, characterized in that the bearings (6) outside the end walls (5) of the trough (1) are arranged rnd that the shaft (4) through the end walls in Form of openings (8) is passed, the diameter of which is only slightly larger than who is the wave. 2. Drehfilter nach Anspruch 1, dadurch gekennzeichnet, daß außen an den Stirnwänden (5) des Troges (1) Taschen (7) zur Aufnahme der durch die Öffnungen (8) hindurchtretenden Suspension vorgesehen sind und daß die Lager (6) an der stirnseitigen Außenwand (12) der Taschen befestigt sind.2. Rotary filter according to claim 1, characterized in that the outside the end walls (5) of the trough (1) pockets (7) for receiving the through the openings (8) passing through suspension are provided and that the bearings (6) on the end face Outer wall (12) of the bags are attached. 3. Drelifilter nach Anspruch 2, mit einer Überlaufvorrichtung für die Suspension, dadurch gekennzeichnet, daß die Überlaufvorrichtung (Überlaufkante 11) so oberhalb der Tasche (7) angeordnet ist, daß überlaufende Suspension in die Tasche abfließt.3. Drelifilter according to claim 2, with an overflow device for the suspension, characterized in that the overflow device (overflow edge 11) is arranged above the pocket (7) that overflowing suspension into the Bag drains. 4. Drehfilter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,daß'die Welle (4) im Bereich zwischen der Öffnung (8) und dem zugehörigen Lager (6) einen größeren Durchmesser als im benachbarten Bereich aufweist, z. B. einen Abstreifring (13) trägt.4. Rotary filter according to one of the preceding claims, characterized in that'die A shaft (4) in the area between the opening (8) and the associated bearing (6) has a larger diameter than in the adjacent area, e.g. B. a wiper ring (13) carries.
DE2605929A 1976-02-14 1976-02-14 Rotary filter Expired DE2605929C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2605929A DE2605929C3 (en) 1976-02-14 1976-02-14 Rotary filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2605929A DE2605929C3 (en) 1976-02-14 1976-02-14 Rotary filter

Publications (3)

Publication Number Publication Date
DE2605929A1 true DE2605929A1 (en) 1977-08-25
DE2605929B2 DE2605929B2 (en) 1977-12-15
DE2605929C3 DE2605929C3 (en) 1984-08-09

Family

ID=5969879

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2605929A Expired DE2605929C3 (en) 1976-02-14 1976-02-14 Rotary filter

Country Status (1)

Country Link
DE (1) DE2605929C3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541745A1 (en) * 1983-02-28 1984-08-31 Pechiney Aluminium DEVICE FOR RETAINING A LIQUID PHASE BETWEEN A WALL AND A ROTATING PART THROUGH
CN111700040A (en) * 2019-03-18 2020-09-25 株式会社岛野马来西亚配件厂有限公司 Coiling wheel for fishing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1223344B (en) * 1960-03-23 1966-08-25 Sunds Verkstaeder Aktiebolag Arrangement of self-sucking cell filters for the dewatering of fluid-containing substance mixtures, preferably fibrous material suspensions
US3403786A (en) * 1966-08-25 1968-10-01 Improved Machinery Inc Rotary drum filter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1223344B (en) * 1960-03-23 1966-08-25 Sunds Verkstaeder Aktiebolag Arrangement of self-sucking cell filters for the dewatering of fluid-containing substance mixtures, preferably fibrous material suspensions
US3403786A (en) * 1966-08-25 1968-10-01 Improved Machinery Inc Rotary drum filter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541745A1 (en) * 1983-02-28 1984-08-31 Pechiney Aluminium DEVICE FOR RETAINING A LIQUID PHASE BETWEEN A WALL AND A ROTATING PART THROUGH
EP0120797A1 (en) * 1983-02-28 1984-10-03 Aluminium Pechiney Apparatus to enclose a liquid between a wall and a revolving piece passing therethrough
CN111700040A (en) * 2019-03-18 2020-09-25 株式会社岛野马来西亚配件厂有限公司 Coiling wheel for fishing

Also Published As

Publication number Publication date
DE2605929C3 (en) 1984-08-09
DE2605929B2 (en) 1977-12-15

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Legal Events

Date Code Title Description
8227 New person/name/address of the applicant

Free format text: KHD HUMBOLDT WEDAG AG, 5000 KOELN, DE

C3 Grant after two publication steps (3rd publication)
8380 Miscellaneous part iii

Free format text: DIE HAUPTKLASSE IST WIE ANGEGEBEN ZU BERICHTIGEN B01D 33/06

8339 Ceased/non-payment of the annual fee