DE2402587A1 - Improved filter cloth for plate and chamber press - having impermeable sleeve around inlet passage to prevent premature blocking - Google Patents

Improved filter cloth for plate and chamber press - having impermeable sleeve around inlet passage to prevent premature blocking

Info

Publication number
DE2402587A1
DE2402587A1 DE2402587A DE2402587A DE2402587A1 DE 2402587 A1 DE2402587 A1 DE 2402587A1 DE 2402587 A DE2402587 A DE 2402587A DE 2402587 A DE2402587 A DE 2402587A DE 2402587 A1 DE2402587 A1 DE 2402587A1
Authority
DE
Germany
Prior art keywords
filter
cloths
feed
plate
chamber
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
Application number
DE2402587A
Other languages
German (de)
Inventor
Auf Nichtnennung Antrag
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 DE2402587A priority Critical patent/DE2402587A1/en
Publication of DE2402587A1 publication Critical patent/DE2402587A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
    • B01D25/12—Filter presses, i.e. of the plate or plate and frame type
    • B01D25/176—Filter presses, i.e. of the plate or plate and frame type attaching the filter element to the filter press plates, e.g. around the central feed hole in the plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B01D2239/0478—Surface coating material on a layer of the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0681—The layers being joined by gluing

Abstract

Plate and chamber press consists of plates with cloths forming chambers to receive filter cake deposited from a slurry feed. The edges of the cloths around the feed passage have an impermeable coating. This can be a sleeve wrapped over and stuck onto the filter surface with a suitable adhesive or by use of self-adhesive material. Prevents premature deposition of cake in the chambers causing the inlet region near the feed channel to block before each chamber is fully loaded thus limiting the filter capacity. This is partic. so where easily filtered materials are involved. Premature blockage prevents blowing out of the feed channel before cake removal. Often the filter must be opened by hand which leads to damage to the filter cloths and to the plates. Also product is saved since hand cleaning means loss of residual slurry in the loading channel.

Description

Filtertücher für Kammerfilterpressen Die Erfindung betrifft Filtertücher für Kammerfilterpressen für die Entwässerung von Industrie- und Kommunalschlämmen, insbesondere solche mit hohen Faserstoffanteilen.Filter cloths for chamber filter presses The invention relates to filter cloths for chamber filter presses for the dewatering of industrial and municipal sludge, especially those with a high fiber content.

Bei derartigen Filtertüchern ist es einerseits erforderlich, daß zur Erzielung trockener Filterkuchen die Wasserdurchlässigkeit möglichst gut und gleichmäßig über die gesamte Filterfläche verteilt ist,anderenseits darf die Entwässerung in der eschickungsbohrung nicht zu stark sein.In such filter cloths, it is necessary on the one hand that to Achieving dry filter cakes the water permeability as well and evenly as possible is distributed over the entire filter surface, on the other hand, the drainage in the delivery hole should not be too strong.

Es sind bekannt,Filtertücher aus verschiedensten Gewebematerialien die über die ganze Filterfläche hinweg gehen,ohne Berücksichtigung des in der Beschickungsbohrung noch zulässigen Wasserentzuges.There are known filter cloths made from a wide variety of fabric materials which go over the entire filter surface, without taking into account the one in the feed bore permissible dehydration.

(Patentschriften über besondere Ausbildungen von Filtertüchern liegen in Klasse 12d Gruppe 2503 nicht vor). Deshalb findet bereits dort bei leicht entwässerbaren Schlämmen eine Verfestigung stattt die zu Verstopfungen in: der Beschickungsbohrung führt,und damit eine vollständige Füllung der Presse verhin:dert,Filterplattenbrüche verursacht, sowie das Ausblasch der Beschickungsbohrung vor dem Öffnen der Presse verhindert. Die Bohrung muß dann von Hand freigeboxt werden,was seinerseits wieder zu Beschädigungen der Filtertücher führt.(There are patents on special designs of filter cloths in class 12d group 2503 not before). That is why it is already found there with easily drainable Sludge solidification prevents blockages in: the feed bore and thus prevents the press from being completely filled, broken filter plates caused, as well as the blowout of the loading bore before opening the press prevented. The hole must then be boxed free by hand, which in turn leads to damage to the filter cloths.

Der Erfindung liegt die Aufgabe zu Grunde, auch bei dieser Art von Schlämmen eine gleichmäßige Füllung der Presse und damit feste Filterkuchen: zu erzielen.The invention is based on the object, even with this type of Sludge an even filling of the press and thus firm filter cake: to achieve.

Diese Auf, gabe wird erfindungsgemäß dadurch geldst,daß im Bereich der Beschickungsbohrrng die Filtertücher und die Bohrungen mit wasserundurchlässigen Manschetten aus Gewebe, Folie oder dergl.According to the invention, this task is paid for by the fact that in the area the loading hole, the filter cloths and the holes with water-impermeable Cuffs made of fabric, foil or the like.

abgedeckt werden,wobei sich der äußere Durchmesser des die Beschickungsbohrung umschließenden waserundurchlässigen Kreisringes nach dem Entwässerungsverhalten des Schlammes richtet.covered, with the outer diameter of the feed bore surrounding water-impermeable circular ring according to the drainage behavior of the mud.

Um die leichte Anpassung an das Entwässerungsverhalten des ,Schlammes zu ermöglichen, sind nach einer weiteren Ausbildung der Erfindung die Manschetten lose ru liefern, damit sie am Verwendungsort eingekürzt werden können. Die Befestigung erfolgt dann mittels eines geeigneten Klebers oder durch Verwendung selbstklebenden Materialso Die mit der Erfindung erzielbaren Vorteile bestehen: insbesondere darin, daß eine gleichmäßige Beschickung der Presse gewährleistet wird, und daß die Beschickungsbohrung ausblasbar bleibt. Plattenbrüche und Filtertuchbeschädigungen werden dadurch vermieden, große Arbeitseinsparungen werden erzielt,da die Beschickungsbohrung nicht mehr von Hand gereinigt werden muß. Bei gleichbleibender Schlammbeschaffemheit wird es dadurch möglich,das Ende der Filtration druckabhängig zu schalten, wodurch diese Funktion wesentlich vereinfacht wird.In order to easily adapt to the drainage behavior of the, sludge to enable, according to a further embodiment of the invention, the cuffs Deliver loose ru so that they can be shortened at the place of use. The attachment then takes place by means of a suitable adhesive or by using self-adhesive The advantages that can be achieved with the invention are: in particular, that an even loading of the press is guaranteed, and that the loading bore remains blown out. Broken plates and damage to the filter cloth are avoided, great labor savings are achieved because the feed bore is no longer of Must be hand cleaned. If the sludge texture remains the same, it will be possible to switch the end of the filtration depending on the pressure, which makes this function is simplified significantly.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dagestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is described in more detail below.

1 Filterplatten geschnitten in der Achse der Beschickungbchrung 2 Filtertücher 3 durch die Beschickungsbchrungen gesteckte wasserdichte Manschetten 4 der Schlwnmfluß und seine Verteilung Die dargestellten Filterkammern, Teil einer größeren Anzahl gleicher Art,werden von links durch die Beschickungsbohrung mit Schlamm 4 gefüllt.a im Bereich der Beschickungsbohrung keine Schlammentwässerung stattfinden kann, gelangt der Schlamm in flüssigem Zustand in die Kammern,wo er in bekannter Weise durch die Filtertücher entwässert. 1 filter plates cut in the axis of the feed bend 2 Filter cloths 3 watertight sleeves inserted through the feed bores 4 The Schlwnmfluss and its distribution The illustrated filter chambers, part of a larger number of the same type, are from the left through the feed hole with Sludge 4 filled.a no sludge dewatering in the area of the feed bore can take place, the sludge reaches the chambers in a liquid state, where it drained in a known manner through the filter cloths.

Claims (2)

P a t e n t a n s p r ü c h eP a t e n t a n s p r ü c h e 1. Filtertücher für Kammerfilterpressen d a d u r c h g e k e n n z e i c h n e t, das die Beschickungsbohrung und die angrenzenden Siltertuchflächen wasserdicht ausgeführt beziehungsweise durch eine Wasserdichtw Anskleidung abgedeckt sind (3).1. Filter cloths for chamber filter presses are not available Marks the loading bore and the adjoining silt cloth surfaces designed to be waterproof or covered by waterproof clothing are (3). 2. Filtertücher nach Anspruch 1, dadurch gekennzeichnet, daß die wasserdichte Auskleidung als lose Manschette hergestellt wird, die durch Einkürzen der beiderseitigen Kreisringe an das Entwäss-erung,sverhalten des Schlammes angepaßt werden kann und danach mittels eines geeigneten Klebers oder durch Verwendung selbstklebenden Materials eingebaut wird, 2. Filter cloths according to claim 1, characterized in that the Waterproof lining is made as a loose sleeve that is shortened by shortening of the circular rings on both sides adapted to the dewatering behavior of the sludge can be and then by means of a suitable adhesive or by using self-adhesive Material is installed,
DE2402587A 1974-01-19 1974-01-19 Improved filter cloth for plate and chamber press - having impermeable sleeve around inlet passage to prevent premature blocking Pending DE2402587A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2402587A DE2402587A1 (en) 1974-01-19 1974-01-19 Improved filter cloth for plate and chamber press - having impermeable sleeve around inlet passage to prevent premature blocking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2402587A DE2402587A1 (en) 1974-01-19 1974-01-19 Improved filter cloth for plate and chamber press - having impermeable sleeve around inlet passage to prevent premature blocking

Publications (1)

Publication Number Publication Date
DE2402587A1 true DE2402587A1 (en) 1975-07-24

Family

ID=5905209

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2402587A Pending DE2402587A1 (en) 1974-01-19 1974-01-19 Improved filter cloth for plate and chamber press - having impermeable sleeve around inlet passage to prevent premature blocking

Country Status (1)

Country Link
DE (1) DE2402587A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504853A1 (en) * 1991-03-18 1992-09-23 OTTO MARKERT & SOHN Method of manufacturing filter cloth for filter presses
CN110508041A (en) * 2019-09-27 2019-11-29 惠州市精田机械制造有限公司 A kind of filter press block clearing aerating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504853A1 (en) * 1991-03-18 1992-09-23 OTTO MARKERT & SOHN Method of manufacturing filter cloth for filter presses
CN110508041A (en) * 2019-09-27 2019-11-29 惠州市精田机械制造有限公司 A kind of filter press block clearing aerating system

Similar Documents

Publication Publication Date Title
DE2260461C3 (en) Filter centrifuge
DE2422208C3 (en) Method and device for dewatering sludge-like goods
DE2036830C3 (en) Filtration method and device
DE1786467C3 (en) Process for filtering and filter press for carrying out the process
DE1761716C3 (en) Process for reducing the liquid content of a moist, finely divided solid and device for carrying out the process
DE2656369C2 (en) Press for separating liquid and solid substances
DE2127304C3 (en) Tube filter press
DE2042461B2 (en) Rotary vacuum filter
DE2402587A1 (en) Improved filter cloth for plate and chamber press - having impermeable sleeve around inlet passage to prevent premature blocking
DE2123683A1 (en) Filter device
EP0455117A2 (en) dehydration press for mud
DE611396C (en) Frame filter press
CH436132A (en) centrifuge
DE2827379A1 (en) FILTER DEVICE FOR DISCONNECTING A TRUE INTO A SOLID AND A LIQUID COMPONENT UNDER PRESSURE
DE4033012A1 (en) Dewatering esp. of clarification sludge - by combined centrifugal filtering and pressurised gas filtering
JPH08150306A (en) Method for washing filter press filter cloth for cement base waste water
AT519379B1 (en) Device for the continuous squeezing of liquid from a suspension
DE10003678C2 (en) Device and method for deep filtration
DE2039553A1 (en) Sieve or bag filter
AT225720B (en) Device and method for squeezing liquid from liquid-containing, fine-grained material such as coal sludge and. like
AT396923B (en) METHOD AND SEPARATING DEVICE FOR SEPARATING OR DRAINING LIQUID-SOLID MIXTURES
DE898888C (en) Drum suction filter with partial vacuum control through liquid shut-off
DE3448377C2 (en) Filter element mfr.
AT231474B (en) Method for operating a rotary vacuum filter
CH582534A5 (en) Shaft seal for pressure filter - having inflatable seal between the rotatable hollow shaft and the liquid outlet