DE10100145A1 - Filtering out and drying solid particles from liquids, e.g. grinding chips from cooling lubricants, using filter candles arranged in a pressure vessel comprises interrupting filter operation to clean filter and remove filter discharge - Google Patents

Filtering out and drying solid particles from liquids, e.g. grinding chips from cooling lubricants, using filter candles arranged in a pressure vessel comprises interrupting filter operation to clean filter and remove filter discharge

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Publication number
DE10100145A1
DE10100145A1 DE10100145A DE10100145A DE10100145A1 DE 10100145 A1 DE10100145 A1 DE 10100145A1 DE 10100145 A DE10100145 A DE 10100145A DE 10100145 A DE10100145 A DE 10100145A DE 10100145 A1 DE10100145 A1 DE 10100145A1
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DE
Germany
Prior art keywords
filter
piston
discharge
pressure vessel
candles
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.)
Withdrawn
Application number
DE10100145A
Other languages
German (de)
Inventor
Horst Stollberg
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.)
Reishauer AG
Original Assignee
Reishauer 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 Reishauer AG filed Critical Reishauer AG
Priority to DE10100145A priority Critical patent/DE10100145A1/en
Publication of DE10100145A1 publication Critical patent/DE10100145A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/02—Combinations of filters of different kinds
    • 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
    • B01D29/01—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 flat filtering elements
    • 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
    • B01D29/11—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 bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/114—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 bag, cage, hose, tube, sleeve or like filtering elements arranged for inward flow filtration
    • 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
    • B01D29/50—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 multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—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 multiple filtering elements, characterised by their mutual disposition in parallel connection
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6484—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a translatory movement with respect to the filtering element
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • 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
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
    • B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
    • B01D29/824—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression using pistons
    • 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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering 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
    • B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/043—Filter tubes connected to plates
    • B01D2201/0446—Filter tubes connected to plates suspended from plates at the upper side of the filter elements

Abstract

Filtering out and drying solid particles from liquids using filter candles (5) arranged in a pressure vessel (1) comprises interrupting the filter operation to clean the filter and remove the filter discharge using a stripping plunger (11). The filter discharge is dried by pressing the residual liquid after it leaves the vessel. An Independent claim is also included for a device for carrying out the process. Preferred Features: The filter discharge is dried during the filtering operation. The stripping plunger is cleaned by rapid pulling back the plunger and rinsing using a pressure medium introduced externally. A centrifuge is used to dry the filter discharge.

Description

Die Erfindung betrifft das Ausfiltern von Feststoffpartikeln aus Flüssigkeiten, insbesondere das Ausfiltern von metallischen Schleifspänen und Schleifscheibenabrieb aus der Kühlschmierflüs­ s'igkeit von Schleifmaschinen mit hoher Schleifleistung, sowie die Minimierung des Restflüssigkeitsgehalts im Filteraustrag.The invention relates to the filtering out of solid particles Liquids, especially filtering out metallic ones Grinding chips and grinding wheel abrasion from the cooling lubricant liquidity of grinding machines with high grinding performance, as well minimizing the residual liquid content in the filter discharge.

Voraussetzung für die Realisierung der maschinen- und werkzeug­ seitig heute möglichen Abtragsleistung moderner Schleifmaschinen sind Kühlschmiermittelaufbereitungsanlagen, die im Kühlschmier­ kreislauf der Maschine bis zu 250 Liter Kühlschmierflüssigkeit pro Minute von Schleifspänen und Schleifscheibenabrieb reinigen, auf konstante Temperatur kühlen und dem Schleifprozess unter ausreichendem Druck wieder zuführen. Vom Anwender erwartet wer­ den aus wirtschaftlichen Gründen rückspülbare Filter mit hoher Filterleistung und Lebensdauer sowie ein minimaler Flüssigkeits­ gehalt des Filteraustrags bei geringstmöglichem Energie- und Platzbedarf sowie minimalen Investitions- und Wartungskosten.Prerequisite for the realization of the machine and tool removal capacity of modern grinding machines possible today are cooling lubricant preparation systems that are used in cooling lubricants circuit of the machine up to 250 liters of cooling lubricant clean from grinding chips and grinding wheel abrasion per minute, cool to constant temperature and under the grinding process Apply sufficient pressure again. Who expects from the user the filter with high backwashing for economic reasons Filter performance and lifespan as well as minimal fluid content of the filter discharge with the lowest possible energy and Space requirements as well as minimal investment and maintenance costs.

In der nicht vorveröffentlichten DE Patentanmeldung Nr. 100 20 974.2 wird eine Kühlschmiermittelaufbereitungsanlage beschrie­ ben, die diesen Anforderungen in hohem Masse entspricht und ge­ genüber anderen Systemen wie den bekannten Bandfilteranlagen und Zentrifugen grosse Vorteile aufweist. Der mittels hoch effizien­ ter, durch Druckluft und Kühlschmiermittel rückspülbarer Papier­ filterkerzen mit langer Lebensdauer ausgefilterte Filterschlamm wird durch Rotation des Filterträgers von den Filterkerzen ab­ gelöst und durch Zentrifugieren getrocknet. In der Praxis zeigt sich aber - besonders bei hohen Filterströmen und Verschmut­ zungsgraden -, dass insbesondere der bei diesem Konzept zentrale Schleuderprozess zur Reinigung der Filterkerzen und Trocknung des Filteraustrags hinsichtlich des Energie- und Zeitbedarfs im Prozess u. a. den Nachteil aufweist, dass zum Antrieb der träg­ heitsbehafteten rotierenden Teile, die in kurzer Zeit auf hohe Drehzahlen beschleunigt werden müssen, relativ hohe Antriebslei­ stungen benötigt werden und der Anteil der Trocknungszeit des Filteraustrags, während der der Filterbetrieb unterbrochen ist, im Verhältnis zur Einsatzzeit des Filters relativ gross wird.In the unpublished DE patent application No. 100 20 974.2 a cooling lubricant preparation system is described ben that meets these requirements to a high degree and ge compared to other systems such as the known belt filter systems and Centrifuges have great advantages. The one with high efficiency paper backwashed with compressed air and coolant filter cartridges with long service life filtered filter sludge is removed from the filter cartridges by rotating the filter carrier dissolved and dried by centrifugation. In practice shows but - especially with high filter currents and pollution  degrees - that in particular the one central to this concept Spin process for cleaning the filter candles and drying the filter discharge with regard to the energy and time required in Process u. a. has the disadvantage that the sluggish drive Rotating parts with high safety in a short time Speeds need to be accelerated, relatively high drive power stung and the proportion of the drying time of the Filter discharge during which the filter operation is interrupted, becomes relatively large in relation to the filter's operating time.

Aufgabe der vorliegenden Erfindung ist es, eine Lösung vorzu­ schlagen, bei der diese Nachteile vermieden werden. Sie wird ge­ löst durch die erfindungsgemässen Merkmale in den Patentansprü­ chen.The object of the present invention is to provide a solution suggest that these disadvantages are avoided. It will be ge solves by the features of the invention in the claims chen.

Nachfolgend wird die Erfindung am Beispiel der Kühl­ schmiermittelaufbereitungsanlage einer Schleifmaschine anhand der Zeichnungen näher beschrieben. Darin zeigenThe invention is illustrated below using the example of cooling lubricant preparation system based on a grinding machine of the drawings described in more detail. Show in it

Fig. 1 einen Achsschnitt der erfindungsgemässen Vorrichtung in schematischer Darstellung, Fig. 1 is an axial section of the inventive device in a schematic representation;

Fig. 2 eine Einzelheit von Fig. 1 in vergrösserter Darstel­ lung, Fig. 2 shows a detail of development of Fig. 1 in enlarged scale depicting,

Fig. 3 die in Fig. 2 dargestellte Einzelheit in der Drauf­ sicht, Figure 3 shows the detail shown in Fig. 2 view. In plan,

Fig. 4 eine Alternative zu der in Fig. 3 dargestellten Aus­ führungsvariante, Fig. 4 shows an alternative to the. From 3 shown in Fig design variant,

Fig. 5 die Draufsicht der Filterschlammpresse in Fig. 1 und Fig. 5 is a top view of the filter sludge press in Fig. 1 and

Fig. 6 eine Alternative zu der in Fig. 1 dargestellten Ausfüh­ rungsvariante Fig. 6 shows an alternative to the embodiment shown in Fig. 1 approximately

Die Filterkammer 1 des in Fig. 1 dargestellten Filteraggregats ist ein zylindrischer, im unteren Abschnitt trichterförmiger Druckbehälter, der an seiner Oberseite durch die Filterträger­ platte 2 und an seiner unteren Öffnung durch einen mittels Zy­ linder 39 und Hebel 38 hydraulisch betätigbaren Ventilteller 3 geschlossen ist. Unterhalb der Filterträgerplatte 2 befinden sich in hängender Anordnung parallel zur Längsachse 4 der Fil­ terkammer 1 stabförmige Filterkerzen 5, die im hier dargestell­ ten Ausführungsbeispiel aus Paketen in bekannter Weise aufeinan­ dergeschichteter Papierrondellen 6 bestehen, die auf axial ge­ schlitzte oder mit Löchern versehene Rohre 7 aufgefädelt sind. Anstelle dieser Spaltfilter sind auch andere kerzenförmige rück­ spülbare Filterelemente denkbar. Die an einem Ende geschlossenen Rohre 7 sind am anderen Ende mit der Filterträgerplatte 2 ver­ schraubt und münden in einen durch eine Haübe 8 gebildeten Fil­ tratraum 9 mit der Austrittsöffnung 10 für die filtrierte Flüs­ sigkeit.The filter chamber 1 of the filter unit shown in Fig. 1 is a cylindrical, in the lower section funnel-shaped pressure vessel, the plate at its top by the filter support 2 and at its lower opening by a cylinder 39 and lever 38 hydraulically actuated valve plate 3 is closed. Below the filter support plate 2 are in a hanging arrangement parallel to the longitudinal axis 4 of the Fil terkammer 1 rod-shaped filter candles 5 , which in the illustrative embodiment shown here consist of packets in a known manner aufeinan der laminated paper discs 6 , which are threaded onto axially slotted or perforated pipes 7 are. Instead of these gap filters, other candle-shaped back-flushable filter elements are also conceivable. The tubes 7 closed at one end are screwed at the other end to the filter support plate 2 and open into a chamber formed by a hood 8 fil space 9 with the outlet opening 10 for the filtered liquid.

Im Inneren der Filterkammer 1 ist ein die Filterkerzen 5 umgrei­ fender Abstreifkolben 11 so angeordnet, dass er mittels Kolben­ mutter 12, Gewindespindel 13 und Motor 14 axial verschoben wer­ den kann. Anstelle des Gewindetriebs ist auch ein kolbenstangen­ loser Zylinder denkbar, dessen Kolben mit dem Abstreifkolben 11 verbunden ist und hydraulisch oder pneumatisch angetrieben wird. Die Funktion des Abstreifkolbens 11 besteht darin, vor der Rege­ nerierung der Filteranlage an den Filterkerzen 5 mantelförmig haftenden Filterschlamm 15 abzustreifen und in den trichterför­ migen Teil der Filterkammer 1 zu befördern. Dies kann bei Bedarf auch zwischen zwei Regenerierungsprozessen während des Filterbe­ triebs erfolgen.Inside the filter chamber 1 is a filter candles 5 fender scraper 11 arranged so that it can be axially displaced by means of piston nut 12 , threaded spindle 13 and motor 14 who can. Instead of the screw drive, a piston rod-free cylinder is also conceivable, the piston of which is connected to the stripping piston 11 and is driven hydraulically or pneumatically. The function of the scraper piston 11 consists of stripping 5 filter-like adhering filter sludge 15 on the filter candles before the regeneration of the filter system and conveying it into the funnel-shaped part of the filter chamber 1 . If necessary, this can also take place between two regeneration processes during filter operation.

Der Abstreifkolben 11 besteht aus zwei mit Durchgangsbohrungen 16 für die Filterkerzen 5 versehenen runden, über Distanzstücke 17 miteinander verbundenen Scheiben 18, 19, zwischen denen, ra­ dial schwimmend, auf die Filterkerzen 5 aufgefädelte scheiben­ förmige Abstreifringe 20 angeordnet sind, die um die Filterker­ zen 5 einen schmalen Spalt bilden und sich während der Hubbewe­ gung des Abstreifkolbens 11 dem Achsverlauf der Kerzen 5 in Hubrichtung durch radiale Verschiebung anpassen. Der Kolben 11 wird mittels Führungsstangen 22 zentrisch zur Behältermitte ge­ führt.The scraper piston 11 consists of two with through holes 16 for the filter cartridges 5 round, via spacers 17 interconnected disks 18 , 19 , between which, ra dial floating, threaded on the filter cartridges 5 disc-shaped scraper rings 20 are arranged, which zen around the filter candles 5 form a narrow gap and adapt themselves during the stroke movement of the scraper piston 11 to the axis of the candles 5 in the stroke direction by radial displacement. The piston 11 is guided by means of guide rods 22 centrally to the center of the container.

Eine Alternative zum Lösen des Filterschlammmantels 15 von den Filterkerzen 5 mittels Abstreifringen 20 bildet ein Abstreifkol­ ben 11, der im Bereich der Filterkerzen 5 mit Drähten 21 be­ spannt ist, die zu den Kerzen 5 tangential verlaufen und von ih­ nen einen geringen Abstand aufweisen. Hierdurch kann die Gefahr von Schlammablagerungen am Abstreifkolben 11 vermindert werden.An alternative to the disengagement of the filter sludge jacket 15 of the filter cartridge 5 by means of wiper rings 20 forms a Abstreifkol ben 11 be in the range of the filter cartridges 5 with wires 21 is tensioned to the candles 5 are tangential and NEN of ih have a small distance. This can reduce the risk of sludge deposits on the scraper piston 11 .

Die Filterschlammpresse 24 umfasst einen nach oben offenen Be­ hälter 25 mit mittels Zylinder 39 hydraulisch betätigbarer und mittels Hydraulikzylinder 37 und Verriegelungsleiste 36 verrie­ gelbarer gelöcherter Verschlussklappe 26, siebartig gelochter Bodenplatte mit darunter angeordneter Flüssigkeitsrückführwanne 27 und Rückflussöffnung 28 sowie einen mittels Kniehebelmecha­ nismus 29 durch einen Hydraulikzylinder 30 betätigbaren Press­ kolben 31 und einen mittels Hydraulikzylinder 32 betätigbaren Auswerfkolben 33.The filter sludge press 24 comprises a container 25 which is open at the top and has a perforated closure flap 26 which can be actuated hydraulically by means of cylinder 39 and locked by means of hydraulic cylinder 37 and locking bar 36 , a sieve-like perforated base plate with a liquid recirculation trough 27 underneath and a return opening 28 and a toggle mechanism 29 by a hydraulic cylinder 30 actuatable press piston 31 and an ejector piston 33 which can be actuated by means of hydraulic cylinder 32 .

Während des Filterbetriebs wird bei geschlossenem Vetilteller 3 die zu filtrierende Flüssigkeit mittels tangential in den trich­ terförmigen Teil der Filterkammer 1 einmündender Rohre 23 unter Druck zugeführt, wobei mittels des so erzeugten Zykloneffekts im unteren Teil der Filterkammer eine Zentrifugenwirkung entsteht, die bewirkt, dass grössere Schmutzpartikel an der Behälterwand abgeschieden werden und weniger leicht nach oben in den Kerzen­ raum gelangen. Nachdem die zu filtrierende Flüssigkeit die Fil­ terkerzen 5 durchströmt hat, verlässt sie die Anlage über die Austrittsöffnung 10. During filter operation, when the valve plate 3 is closed, the liquid to be filtered is fed under pressure by means of pipes 23 opening tangentially into the trich-shaped part of the filter chamber 1 , whereby a centrifuge effect is created in the lower part of the filter chamber by means of the cyclone effect thus generated, which causes larger dirt particles be deposited on the container wall and reach the candle chamber less easily upwards. After the liquid to be filtered has passed through the filter candles 5 , it leaves the system via the outlet opening 10 .

Zur Regenerierung der Filteranlage wird die Flüssigkeitszufuhr unterbrochen und zwecks leichterer Ablösung des Filterschlamms 15 von den Filterkerzen 5 bei leicht geöffnetem Ventilteller 3 Filtrat durch die Filterkerzen 5 in die Filterkammer 1 gepresst. Durch den anschliessenden Hub des Abstreifkolbens 11 werden die Filterkerzen 5 von Filterschlamm befreit, wobei der anschlie­ ssende Rückhub mit erhöhter Geschwindigkeit erfolgt, um den Kol­ ben 11 von Schlammresten freizuspülen. In der Folge wird mittels Zufuhr von Druckluft aus mit dem Anschlussrohr 42 über Zuführ­ leitung 40 und Verteilring 41 verbundenen Düsen 35 in die Fil­ terkammer 1 die darin befindliche Flüssigkeit bis auf einen Re­ stanteil durch die Filterkerzen 5 aus der Filterkammer 1 abge­ presst und der Restanteil der Flüssigkeit durch Öffnen des Ven­ tiltellers 3 über den Behälter 25, die Wanne 27 und die Öffnung 28 zur ungefilterten Flüssigkeit zurückgeführt, wobei der Fil­ terschlamm im Behälter 25 zurückbleibt. Gleichzeitig werden mit­ tels Zuführung von Filtrat oder Druckluft in den oberen Filtra­ traum 9 und zu den Düsen 35 die Filterkerzen 5 rückgespült bzw. der Kolben 11 von Filterschlammrückständen gereinigt.To regenerate the filter system, the liquid supply is interrupted and, for easier removal of the filter sludge 15 from the filter cartridges 5 with the valve disc 3 slightly open, filtrate is pressed through the filter cartridges 5 into the filter chamber 1 . The filter candles 5 are freed of filter sludge by the subsequent stroke of the scraper piston 11 , the subsequent return stroke being carried out at an increased speed in order to flush the piston ben 11 of sludge residues. Subsequently, by supplying compressed air from nozzles 35 connected to the connecting pipe 42 via feed line 40 and distribution ring 41 into the fil terkammer 1, the liquid therein is squeezed out of the filter chamber 1 by the filter candles 5, and the remaining part the liquid is returned to the unfiltered liquid by opening the Ven tilteller 3 via the container 25 , the tub 27 and the opening 28 , the Fil terschlamm remaining in the container 25 . At the same time, the filter candles 5 are flushed back or the piston 11 is cleaned of filter sludge residues with the supply of filtrate or compressed air into the upper filtrate dream 9 and to the nozzles 35 .

Nach Schliessen des Ventiltellers 3 wird der Filterbetrieb wie­ der aufgenommen, der in Behälter 25 befindliche Filteraustrag durch Zusammenpressen getrocknet und nach Öffnen der Verschluss­ klappe 26 mittels Auswurfkolben 33 ausgeworfen.After closing the valve plate 3 , the filter operation is started as that, the filter discharge located in the container 25 is dried by pressing it together and after opening the closure flap 26 is ejected by means of the ejection piston 33 .

Als alternatives Mittel zur Trocknung des Filteraustrags ist ei­ ne Zentrifuge 50 zu betrachten, deren Leistung und Kosten gering sein können, weil während des Filterbetriebs für die Trocknung des Filteraustrags reichlich Zeit zur Verfügung steht.As an alternative means of drying the filter discharge ei ne centrifuge 50 is to be considered, the performance and costs of which may be low, because there is ample time available for drying the filter discharge during filter operation.

Claims (11)

1. Verfahren zum Ausfiltern und Trocknen von Feststoffparti­ keln aus Flüssigkeiten mittels in einem Druckbehälter (1) angeordneter Filterkerzen (5), wobei der Filterbetrieb zur Reinigung des Filters und Ausbringung des Filteraustrags unterbrochen wird, wobei der an den Filterkerzen (5) und der Behälterwand haftende Filteraustrag (15) mittels eines Abstreifkolbens (11) zum Behälterausgang befördert und nach dem Verlassen des Behälters (1) durch Auspressen der Rest­ flüssigkeit getrocknet wird.1. A method for filtering and drying of solid particles from liquids by means of filter cartridges ( 5 ) arranged in a pressure vessel ( 1 ), the filter operation for cleaning the filter and application of the filter discharge being interrupted, the filter cartridges ( 5 ) and the container wall Adhesive filter discharge ( 15 ) by means of a scraper piston ( 11 ) is conveyed to the container outlet and, after leaving the container ( 1 ), liquid is dried by squeezing out the rest. 2. Verfahren nach Anspruch 1, wobei das Trocknen des Filteraus­ trags während des Filterbetriebs erfolgt.The method of claim 1, wherein drying the filter takes place during filter operation. 3. Verfahren nach Anspruch 1 oder 2, wobei der Abstreifkolben (11) sowohl durch raschen Kolbenrückzug als auch durch Spü­ lung mit einem über ein Anschlussrohr (42) von aussen zuge­ führten Druckmedium gereinigt wird.3. The method according to claim 1 or 2, wherein the stripping piston ( 11 ) is cleaned both by rapid piston retraction and by flushing with a pressure medium supplied from the outside via a connecting pipe ( 42 ). 4. Verfahren nach einem der Ansprüche 1 bis 3, wobei die Ab­ streifbewegung des Kolbens während der Reinigungsphase des Filters und bei Bedarf auch während des Filterbetriebs durchgeführt wird.4. The method according to any one of claims 1 to 3, wherein the Ab piston movement during the cleaning phase of the Filters and if necessary also during filter operation is carried out. 5. Verfahren nach einem der Ansprüche 1 bis 4, wobei zum Trock­ nen des Filteraustrags eine Zentrifuge (50) eingesetzt wird. 5. The method according to any one of claims 1 to 4, wherein a centrifuge ( 50 ) is used for drying the filter discharge. 6. Vorrichtung zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 5, umfassend einen Druckbehälter (1) mit hy­ draulisch betätigbarem Ventilteller (3) und Zuführrohren (23), in welchem ein Filter mit mehreren Filterkerzen (5) angeordnet ist, die mit einem Filtratraum (9) verbunden sind, wobei ein axial verschieblicher, die Filterkerzen (5) umgreifender Abstreifkolben (11) mittels eines Aktuators (12, 13, 14) parallel zur Behälterachse (14) längs den Fil­ terkerzen (15) verschiebbar ist, sowie eine unter einem Ven­ tilteller (3) angeordnete Trocknungseinheit (24).6. Device for performing the method according to one of claims 1 to 5, comprising a pressure vessel ( 1 ) with hy draulically actuated valve plate ( 3 ) and feed pipes ( 23 ), in which a filter with a plurality of filter cartridges ( 5 ) is arranged, which with a filtrate chamber ( 9 ) are connected, an axially displaceable, the filter candles ( 5 ) encompassing the scraper piston ( 11 ) by means of an actuator ( 12 , 13 , 14 ) parallel to the container axis ( 14 ) along the Fil terkerzen ( 15 ), and a drying unit ( 24 ) arranged under a Ven tilt plate ( 3 ). 7. Vorrichtung nach Ansprüch 6, wobei der Abstreifkolben zwei durch Distanzstücke (17) miteinander verbundenen Scheiben (18, 19) umfasst, zwischen denen auf die Filterkerzen (5) aufgefädelte, radial frei bewegliche Abstreifringe (20) axial gehalten sind, wobei der Innendurchmesser der Abstreifringe (20) um 0,5-1 mm grösser ist als der Aussendurchmesser der Filterkerzen (5).7. Device according to claims 6, wherein the scraper piston comprises two disks ( 18 , 19 ) connected to one another by spacers ( 17 ), between which radially freely movable scraper rings ( 20 ) threaded onto the filter candles ( 5 ) are held axially, the inner diameter the scraper rings ( 20 ) is 0.5-1 mm larger than the outside diameter of the filter cartridges ( 5 ). 8. Vorrichtung nach Anspruch 6, wobei der Abstreifkolben im Be­ reich der Filterkerzen (5) mit Drähten (21) bespannt ist, wobei die Drähte (21) tangential zu den Filterkerzen (5) ge­ spannt sind und ihr Abstand von diesen weniger als 1 mm be­ trägt.8. The device according to claim 6, wherein the stripping piston in the loading area of the filter candles ( 5 ) is covered with wires ( 21 ), the wires ( 21 ) being tangent to the filter candles ( 5 ) and their distance from these less than 1 mm is. 9. Vorrichtung nach einem der Ansprüche 6 bis 8, wobei die Zu­ führrohre (23) tangential in den Druckbehälter (1) münden.9. Device according to one of claims 6 to 8, wherein the guide tubes ( 23 ) open tangentially into the pressure vessel ( 1 ). 10. Vorrichtung nach einem der Ansprüche 6 bis 9, wobei der Ak­ tuator (12, 13, 14) eine mit einem Motor (14) verbundene Ge­ windespindel (13) umfasst, auf die eine mit dem Abstreifkol­ ben (11) verbundene Mutter (12) aufgeschraubt ist. 10. Device according to one of claims 6 to 9, wherein the actuator ( 12 , 13 , 14 ) comprises a threaded spindle ( 13 ) connected to a motor ( 14 ), onto which a nut ( 11 ) connected to the stripping piston ( 11 ) 12 ) is screwed on. 11. Vorrichtung nach einem der Ansprüche 6 bis 10, wobei die Trocknungseinheit (24) als Presse oder als Zentrifuge ausge­ bildet ist.11. The device according to one of claims 6 to 10, wherein the drying unit ( 24 ) is formed as a press or as a centrifuge.
DE10100145A 2001-01-03 2001-01-03 Filtering out and drying solid particles from liquids, e.g. grinding chips from cooling lubricants, using filter candles arranged in a pressure vessel comprises interrupting filter operation to clean filter and remove filter discharge Withdrawn DE10100145A1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPI20080085A1 (en) * 2008-09-04 2010-03-05 Fomat S R L METHOD AND DEVICE FOR CLEANING FILTERS FOR FLUIDS
WO2013050654A1 (en) * 2011-10-04 2013-04-11 Andritz Oy Pressure filter
CN110913968A (en) * 2017-07-25 2020-03-24 罗伯特·博世有限公司 Liquid filter and box-type filtering system with liquid filter
CN113877264A (en) * 2021-11-18 2022-01-04 陈蓓 Self-cleaning self-fastening ceramic filter element water purifier
CN116637438A (en) * 2023-07-27 2023-08-25 太原华达机械设备有限公司 Washing water recovery filtering device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE34056C (en) * 1885-05-24 1885-12-17 CH. E. CHAMBERLAND, Dr. phil. in Paris Cleaning device for filters
GB195738A (en) * 1922-01-04 1923-04-04 Thermal Ind & Chem Tic Res Co Improvements in filtering apparatus
DE2333405A1 (en) * 1973-06-30 1975-01-16 Bamag Verfahrenstechnik Gmbh DEVICE FOR FILTRATING LIQUIDS
EP0269813A1 (en) * 1986-12-02 1988-06-08 Müller Umwelttechnik GmbH & Co. KG Apparatus for dehydrating aqueous sludges by way of pressure
DE4040431A1 (en) * 1990-12-18 1992-07-02 Ruhrkohle Ag Removal of filter cake e.g. flotation sludge - from a continuously rotating filter drum using scraper made of one or more pieces of wire rotating around axis parallel to filter
EP0587080A1 (en) * 1992-09-11 1994-03-16 Nagaoka International Corporation Sludge dehydrating press and method for treating sludge
DE4307472A1 (en) * 1993-03-10 1994-11-17 Knecht Filterwerke Gmbh Filter for liquids, pastes or other high-viscosity media
DE19757120A1 (en) * 1997-12-20 1999-06-24 Mann & Hummel Filter Modular fluid filter
US6110388A (en) * 1996-10-25 2000-08-29 Elf Atochem S.A. Sludge filtration device comprising a filter piston, and sludge treatment plant and sludge filtration process thereof
DE10020974A1 (en) * 1999-08-14 2001-02-15 Reishauer Ag Process for filtering liquids comprises pressing the unfiltered liquid inside a pressure container through a filter with several filter candles such that the filtrate remains in the container and is removed at periodic intervals

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE34056C (en) * 1885-05-24 1885-12-17 CH. E. CHAMBERLAND, Dr. phil. in Paris Cleaning device for filters
GB195738A (en) * 1922-01-04 1923-04-04 Thermal Ind & Chem Tic Res Co Improvements in filtering apparatus
DE2333405A1 (en) * 1973-06-30 1975-01-16 Bamag Verfahrenstechnik Gmbh DEVICE FOR FILTRATING LIQUIDS
EP0269813A1 (en) * 1986-12-02 1988-06-08 Müller Umwelttechnik GmbH & Co. KG Apparatus for dehydrating aqueous sludges by way of pressure
DE4040431A1 (en) * 1990-12-18 1992-07-02 Ruhrkohle Ag Removal of filter cake e.g. flotation sludge - from a continuously rotating filter drum using scraper made of one or more pieces of wire rotating around axis parallel to filter
EP0587080A1 (en) * 1992-09-11 1994-03-16 Nagaoka International Corporation Sludge dehydrating press and method for treating sludge
DE4307472A1 (en) * 1993-03-10 1994-11-17 Knecht Filterwerke Gmbh Filter for liquids, pastes or other high-viscosity media
US6110388A (en) * 1996-10-25 2000-08-29 Elf Atochem S.A. Sludge filtration device comprising a filter piston, and sludge treatment plant and sludge filtration process thereof
DE19757120A1 (en) * 1997-12-20 1999-06-24 Mann & Hummel Filter Modular fluid filter
DE10020974A1 (en) * 1999-08-14 2001-02-15 Reishauer Ag Process for filtering liquids comprises pressing the unfiltered liquid inside a pressure container through a filter with several filter candles such that the filtrate remains in the container and is removed at periodic intervals

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPI20080085A1 (en) * 2008-09-04 2010-03-05 Fomat S R L METHOD AND DEVICE FOR CLEANING FILTERS FOR FLUIDS
WO2013050654A1 (en) * 2011-10-04 2013-04-11 Andritz Oy Pressure filter
CN110913968A (en) * 2017-07-25 2020-03-24 罗伯特·博世有限公司 Liquid filter and box-type filtering system with liquid filter
CN110913968B (en) * 2017-07-25 2022-02-22 罗伯特·博世有限公司 Liquid filter and box-type filtering system with liquid filter
US11325061B2 (en) 2017-07-25 2022-05-10 Robert Bosch Gmbh Liquid filter and tank filter system including a liquid filter
CN113877264A (en) * 2021-11-18 2022-01-04 陈蓓 Self-cleaning self-fastening ceramic filter element water purifier
CN116637438A (en) * 2023-07-27 2023-08-25 太原华达机械设备有限公司 Washing water recovery filtering device
CN116637438B (en) * 2023-07-27 2023-10-13 太原华达机械设备有限公司 Washing water recovery filtering device

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