DE700799C - Rotary filter, e.g. B. rotary drum filter or belt filter - Google Patents

Rotary filter, e.g. B. rotary drum filter or belt filter

Info

Publication number
DE700799C
DE700799C DE1939W0106708 DEW0106708D DE700799C DE 700799 C DE700799 C DE 700799C DE 1939W0106708 DE1939W0106708 DE 1939W0106708 DE W0106708 D DEW0106708 D DE W0106708D DE 700799 C DE700799 C DE 700799C
Authority
DE
Germany
Prior art keywords
filter
rotary
belt
drum
cells
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
Application number
DE1939W0106708
Other languages
German (de)
Inventor
Johannes Wiebe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1939W0106708 priority Critical patent/DE700799C/en
Application granted granted Critical
Publication of DE700799C publication Critical patent/DE700799C/en
Expired legal-status Critical Current

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
    • B01D33/044—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering
    • B01D33/048—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering with endless filtering bands
    • 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
    • B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
    • 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
    • B01D33/09—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Description

Drehfilter, z. B. Trommeldrehfilter oder Bandfilter Drehtilter, z.B. Trommeldrehfilter oder Bandfilter, mit einem endlosen, den bzw. die Filtermittelträger nur teilweise umspannenden Filterband sind bekannt. Für diese Filtergattungen sind geeignete Vorrichtungen in Vorschlag gebracht worden, die ein seitliches Verlaufen des Bandes auf der oder den Zellentrommeln verhüten sollen. Die Dichtung zwischen Trommel und Band versuchte man dadurch zu erreichen, daß das Band stramm auf dem ungelochten verbreiterten Rand der Trommel zur Auflage gebracht wurde. Durch geeignete Bürst- und Spritzvorrichtungen wurden die Dichtungsflächen des Bandes und des Trommelrandes vor dem Auflaufen des Bandes auf die Trommel gereinigt. Einwandfrei ist diese Führung und Dichtung des Filterbandes jedoch nicht, da zwischen Band und Trommel stets noch ungefilterte Trübe in das Filtrat gelangte; sie genügt besonders dann nicht, wenn ein sehr hoher Reinheitsgrad des Filtrats gefordert wird.Rotary filter, e.g. B. rotary drum filter or belt filter rotary filter, e.g. Rotary drum filter or belt filter, with an endless filter medium carrier only partially spanning filter belts are known. For these types of filters are Appropriate devices have been proposed that allow lateral running of the tape on the cell drum (s) should be avoided. The seal between An attempt was made to achieve drum and tape by keeping the tape tight on the unperforated widened edge of the drum was brought to rest. Through suitable Brushing and spraying devices became the sealing surfaces of the belt and the drum rim cleaned before the tape runs onto the drum. This tour is flawless and sealing of the filter belt is not, however, since it is still between the belt and the drum unfiltered slurry got into the filtrate; it is especially not enough when a very high degree of purity of the filtrate is required.

Um dieser Forderung nachzukommen, sieht die Erfindung vor, außer den Filterzellen noch Hilfssaugzellen am Rande der Trommel anzuordnen, die durch besondere Rohrleitungen oder Kanäle mit einem Hilfssteuerkopf verbunden sind. Die Hilfssaugzellen stehen unter demselben, vorzugsweise unter einem höheren Unterdruck als die Filterzellen. Die feste Lagerung und Dichtung zwischen den Rändern der Hilfssaugzellen und dem Filterband erfolgt dann dadurch, daß das Band durch den höheren Unterdruck auf die Ränder der Filtertrommel gesaugt wird. Falls bei dieser Anordnung noch etwas Trübe zunge. reinigt zwischen Band und Trommel hindurchtritt, gelangt sie nur in die Hilfssaugzellen. Sollte das Filtrat der Hilfssaugzellen zu trübe sein, so wird es wieder in den Rohstofftrog zurückgeleitet. Es zeigen: Abb. 1 als Beispiel eine Filtertrommel schaubildlich im Längsschnitt, Abb. 2 die gleiche Filtertrommel im Querschnitt und Abb. 3 einen Schnitt durch den Trommelmantel in größerem Maßstabe. To meet this requirement, the invention provides, except to arrange the filter cells still auxiliary suction cells on the edge of the drum, which through special pipes or channels are connected to an auxiliary control head. the Auxiliary suction cells are under the same, preferably under a higher negative pressure than the filter cells. The firm storage and seal between the edges of the auxiliary suction cells and the filter belt then takes place in that the belt through the higher negative pressure is sucked onto the edges of the filter drum. If anything else with this arrangement Cloudy tongue. cleans between belt and drum, it only gets in the auxiliary suction cells. If the filtrate from the auxiliary suction cells is too cloudy, it will it is fed back into the raw material trough. They show: Fig. 1 as an example Filter drum diagrammatically in longitudinal section, Fig. 2 the same filter drum in Cross-section and Fig. 3 a section through the drum shell on a larger scale.

In der Zeichnung stellen dar a den Filtermittelträger (Filtertrommel), b den Filtertrog, c die Hauptzellen, d die Hilfssaugzellen, e den Mantel des Filterbandträgers, d die Hauptfiltratleitung zum Hauptsteuerkopf g, h die Hilfsfiltratleitung zum Hilfssteuerkopf i, k das Filterband, m Nutenlei sten zur Abgrenzung der Zellen, n Dichtungsschnüre, die etwas über den Trommelumfang überstehen. In the drawing represent a the filter medium carrier (filter drum), b the filter trough, c the main cells, d the auxiliary suction cells, e the jacket of the filter belt support, d the main filtrate line to the main control head g, h the auxiliary filtrate line to the auxiliary control head i, k the filter tape, m grooved strips to delimit the cells, n sealing cords, which protrude slightly beyond the drum circumference.

Der Erfindungsgegenstand ist nicht nur für Trommeldrehfilter, sondern für Dlrehfilter aller Art, z. B. Bandfilter, gedacht, also fär Filter, bei denen das Filtermittel nicht an den Rändern des Filterträgers fest eingeschlagen ist. The subject of the invention is not only for rotary drum filters, but for rotating filters of all kinds, e.g. B. band filter, thought, so fär filters where the filter medium is not firmly wrapped around the edges of the filter holder.

Claims (1)

PATENTANSPRUCH: Drehfllter, z. B. Trommeldrehfilter oder Bandfilter, mit einem endlosen, den oder die Filtermittelträger nur teilweise urnspannenden Filterband, dadurch gekennzeichnet, daß außer den Filterzellen (c) Hilfssaugzellen (d) an den Rändern des oder der Filtermittelträger (a) angeordnet sind, die durch besondere Ableitungen (h) mit einem Hilfssteuerkopf (i) verbunden sind. PATENT CLAIM: rotary filter, z. B. rotary drum filter or belt filter, with an endless one that only partially spans the filter medium carrier (s) Filter belt, characterized in that, in addition to the filter cells (c), auxiliary suction cells (D) are arranged on the edges of the filter medium carrier (s) (a) which pass through special leads (h) are connected to an auxiliary control head (i).
DE1939W0106708 1939-12-24 1939-12-24 Rotary filter, e.g. B. rotary drum filter or belt filter Expired DE700799C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1939W0106708 DE700799C (en) 1939-12-24 1939-12-24 Rotary filter, e.g. B. rotary drum filter or belt filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1939W0106708 DE700799C (en) 1939-12-24 1939-12-24 Rotary filter, e.g. B. rotary drum filter or belt filter

Publications (1)

Publication Number Publication Date
DE700799C true DE700799C (en) 1941-02-04

Family

ID=7616635

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1939W0106708 Expired DE700799C (en) 1939-12-24 1939-12-24 Rotary filter, e.g. B. rotary drum filter or belt filter

Country Status (1)

Country Link
DE (1) DE700799C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110140B (en) * 1958-06-24 1961-07-06 Metallgesellschaft Ag Band filter
DE1141979B (en) * 1960-11-19 1963-01-03 Schwermaschb Karl Liebknecht M Rotary drum filter with ventilation device provided for filter cake removal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110140B (en) * 1958-06-24 1961-07-06 Metallgesellschaft Ag Band filter
DE1141979B (en) * 1960-11-19 1963-01-03 Schwermaschb Karl Liebknecht M Rotary drum filter with ventilation device provided for filter cake removal

Similar Documents

Publication Publication Date Title
GB1119971A (en) Filtration apparatus
AT327140B (en) ROLLERS EQUIPPED WITH CARBIDE OR COMPLETE FROM CARBIDE, AND THE PROCESS FOR THEIR PRODUCTION
ES423721A1 (en) Method of and apparatus for manufacturing a net of non-woven threads
DE700799C (en) Rotary filter, e.g. B. rotary drum filter or belt filter
DE3017507C2 (en) Process for the production of film capacitors
GB940201A (en) Improvements in or relating to filtration processes
GB1405975A (en) Rotary-drum vacuum filter apparatus
GB1510857A (en) Method of separating particles of nuclear fuel ans/or breeder material from a first liquid and introducing them into a second liquid
DE931349C (en) Rotary drum filter with a blowing zone in the area of the removal organs for the filter cake
GB1020736A (en) Improvements in filters for liquids
GB1224355A (en) Improvements in or relating to apparatus and process for filtering suspensions
CH554441A (en) Process for the production of a nonwoven fabric from a non-twist fiber band.
SE306301B (en)
DE2808998A1 (en) Stationary guide drum for tape recorders - has orifices around periphery forming film of air to support tape
DE1914139A1 (en) Continuous ion exchange liquids
FR2053700A5 (en) Improvements in continuous band vacuum filters
DE721535C (en) Disc filter cell for rotary filter
GB1385222A (en) Filter
GB1166377A (en) Filtration Apparatus.
GB1440527A (en) Sieving elements or screens
GB816368A (en) Improvements in methods of and apparatus for filtering
JPS53125981A (en) Separator for treating liquid
DE879383C (en) Ring disc filter
ATE26926T1 (en) FILTER CANDLE AND METHOD OF PRODUCTION.
DE656459C (en) Device for washing out the filter cake of suction and pressure cell drum filters