EP1372815A1 - Filter unit for purifying dust-laden process air - Google Patents

Filter unit for purifying dust-laden process air

Info

Publication number
EP1372815A1
EP1372815A1 EP00987190A EP00987190A EP1372815A1 EP 1372815 A1 EP1372815 A1 EP 1372815A1 EP 00987190 A EP00987190 A EP 00987190A EP 00987190 A EP00987190 A EP 00987190A EP 1372815 A1 EP1372815 A1 EP 1372815A1
Authority
EP
European Patent Office
Prior art keywords
filter
dust
hose
filter unit
air space
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Withdrawn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
EP00987190A
Other languages
German (de)
French (fr)
Inventor
Matthias Lübbers
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
Publication of EP1372815A1 publication Critical patent/EP1372815A1/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Withdrawn legal-status Critical Current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
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/69—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side without movement with respect to the filter elements, e.g. fixed nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/79—Regeneration of the filtering material or filter elements inside the filter by liquid process

Definitions

  • Filter unit for cleaning dust-laden process air.
  • the invention relates to a filter unit for cleaning dust-laden process air.
  • filter units for cleaning dust-laden process air are known, which are divided by a partition into an overhead clean air space and an underlying dust air space.
  • dust filters of this type are known in which means, such as washing nozzles, for cleaning adhering dust and product particles are arranged in the dust air space between the filter bags inside or below the separating floor and operated periodically.
  • a disadvantage of these solutions is that only the outer surfaces of the filter bags are cleaned of adhering dust and product particles.
  • dust filters are known in which washing nozzles are arranged in the areas of the hose openings in the clean air space. The water emerging from these washing nozzles and the detached dust and product particles flow through the walls of the filter bags into the dust air space, from where the further drainage takes place. This passage of water and of the dust and product particles through the Filter bags cause an additional clogging of the filter bags from the inside, which reduces their service life and impairs the actual cleaning of the process air.
  • the object of the invention is to provide a filter unit for cleaning dust-laden process air, in which the clean air space and / or each filter hose can be cleaned from the inside.
  • washing nozzles can be arranged in a filter unit in the clean air space and in the area of the hose opening.
  • An advantage of the invention is that contamination in the clean air space and on the inside of the filter bags can be removed without dismantling the filter unit.
  • cleaning of the outside of the tube base can also be achieved during the compressed air pulses to repel the filter cake.
  • Fig. 1 Basic diagram of a filter unit in section
  • Fig. 2 Sectional view of the lower end of the filter hose during a compressed air impulse.
  • Fig. 3 Sectional view of the lower end of the filter hose during the occurrence of cleaning fluid
  • Fig. 4 Sectional view of the lower end of the filter hose during the filtering phase.
  • Fig. 5 Representation of the bottom plate of the filter hose.
  • Fig. 6 Representation of the hose opening
  • the filter unit for cleaning dust-laden process air consists of the vertically oriented filter housing 1, which is divided into an overhead clean air space 10 and an underlying dust air space 9 by means of a separating floor 2.
  • a plurality of hose openings 6 are arranged in the partition 2, in each of which a filter hose 5 which is open towards the clean air space 10 is suspended and projects into the dust chamber 9 hanging under its own weight.
  • wash nozzles 3 which can be activated for the washing and which spray the entire clean air chamber 10 with washing water are arranged, and one or more switchable drain valves 11 are arranged in the partition 2 between the filter bags 5.
  • At least one outlet valve 7 is arranged on each tube plate 12 of the filter tubes 5.
  • the wash water runs into the dust air space 9 virtually without any auxiliary energy or under controlled control.
  • the tube sheet 12 is provided with one or more tube sheet openings 14 and these are covered by a valve membrane 13 connected to the tube sheet 12 in a sealing manner in the effective direction of the process air.
  • the washing nozzles 3 are operatively connected to a switching valve 4 and its associated control 8.
  • the drain valves 11 in the partition 2 are operatively connected to a controller 15.
  • the washing nozzles 3 are activated by the switching valve 4 actuated by the control 8, so that the inside of the filter bags 5 and the clean air space 10 are sprayed with washing water and cleaned.
  • the drain valves 11 are opened, so that the washing water can flow into the dust air space 9 and from there to the outside of the filter unit or according to a solution, not shown, directly to the outside.
  • the washing water entering the filter bags 5 cleans them.
  • the wash water arriving at the tube sheet bulges the valve membrane 13 against the tube sheet 12, so that the wash water can flow into the dust air space 9 and from there to the outside of the filter unit, as shown in FIG. 3.
  • the valve membrane 13 is pressed again against the tube bottom 12, as a result of which the required sealing of the filter tubes 5 is achieved during the cleaning process.
  • the drain valves 11 in the partition 2 are closed.
  • outlet valve 7 An additional function of the outlet valve 7 is that the compressed air, in the event of impulses for repelling the filter cake, as shown in FIG. 2, briefly ventilates the valve membrane 13 from the tube bottom 12 by itself. The compressed air flowing out cleans the outside of the tube sheet 12 of impurities.
  • each hose opening 6 there is at least one wash nozzle 16 which can be activated for washing and which sprays the inside of the filter hose 5 with washing water and at least one outlet valve 7 on each hose base 12.
  • the washing nozzles 16 are operatively connected to a switching valve (not shown) and its associated control.
  • the further embodiment and the mode of operation correspond to the first embodiment. In the second solution, however, only the inside of the filter bags 5 are cleaned.
  • the tube bottom 12 can be made media-permeable by being made of any material in a sieve-like manner.
  • the bottom of the support body, which is arranged outside the filter tube 5, is as a closed surface having a small through hole is formed.
  • Hose base 12 incoming wash water immediately penetrates the sieve-like hose base 12 and in particular through the

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention relates to a filter unit for purifying dust-laden process air, wherein a vertically aligned filter housing is divided by a partition bottom into a clean air chamber located on the top and a dust-laden air chamber located on the bottom, wherein a plurality of tube holes are arranged on the partition bottom, a filter tube that is open towards the clean air chamber being suspended from each of said holes. The invention aims at further improving said filter unit in such a way that the clean air chamber and/or each of the filter tubes can be cleaned from the inside. To this end, washing nozzles (3) that can be activated for washing and that spray the entire clean air chamber with wash water are mounted in the clean air chamber (10). One or several switchable drain valves (11) are arranged on the partition bottom (2) between the tube holes (6) and a least one evacuation valve (7) is mounted on the bottom of each tube, whereby the wash water flows practically by itself into the dust-laden air chamber (9) without auxiliary energy or control.

Description

Filtereinheit zum Reinigen von staubbeladener Prozessluft.Filter unit for cleaning dust-laden process air.
Die Erfindung betrifft eine Filtereinheit zum Reinigen von staubbeladener Prozessluft.The invention relates to a filter unit for cleaning dust-laden process air.
Allgemein sind vertikal angeordnete Filtereinheiten zum Reinigen von staubbeladener Prozessluft bekannt, die durch einen Trennboden in einen obenliegenden Reinluftraum und in einen untenliegenden Staubluftraum geteilt sind. In den Trennboden befinden sich eine Vielzahl von Öffnungen, in die nach zum Reinluftraum hin offene und nach unten hin geschlossene und unter ihrem Eigengewicht hängende Filterschläuche aus vorzugsweise textilem Gewebe eingehängt sind.In general, vertically arranged filter units for cleaning dust-laden process air are known, which are divided by a partition into an overhead clean air space and an underlying dust air space. There are a large number of openings in the dividing floor, into which filter bags, preferably made of textile fabric, are hung, which are open towards the clean air room and closed at the bottom and hanging under their own weight.
Nach DE 94 00 913 U1 und EP 0 719 577 A2 sind derartige Staubfilter bekannt, bei denen im Staubluftraum zwischen den Filterschläuchen inner- bzw. unterhalb des Trennbodens Mittel, wie Waschdüsen, zum Reinigen der Außenflächen der Filterschläuche von anhaftenden Staub- und Produktpartikeln angeordnet sind und periodisch betätigt werden. Nachteilig an diesen Lösungen ist, dass nur ein Reinigen der Außenflächen der Filterschläuche von anhaftenden Staub- und Produktpartikeln erfolgt Weiterhin sind nach DE 4440 773 A1 und US 791 510 Staubfilter bekannt, bei denen im Reinluftraum in den Bereichen der Schlauchöffnungen Waschdüsen angeordnet sind. Das aus diesen Waschdüsen austretende Wasser und die abgelösten Staub- und Produktpartikel fließen durch die Wände der Filterschläuche in den Staubluftraum, von wo aus der weitere Abfluss stattfindet. Dieses Durchlaufen von Wasser und von den Staub- und Produktpartikel durch die Filterschläuche verursacht ein zusätzliches Zusetzen der Filterschläuche von innen, wodurch deren Lebensdauer verringert und das eigentliche Reinigen der Prozessluft beeinträchtigt wird.According to DE 94 00 913 U1 and EP 0 719 577 A2, dust filters of this type are known in which means, such as washing nozzles, for cleaning adhering dust and product particles are arranged in the dust air space between the filter bags inside or below the separating floor and operated periodically. A disadvantage of these solutions is that only the outer surfaces of the filter bags are cleaned of adhering dust and product particles. Furthermore, according to DE 4440 773 A1 and US 791 510, dust filters are known in which washing nozzles are arranged in the areas of the hose openings in the clean air space. The water emerging from these washing nozzles and the detached dust and product particles flow through the walls of the filter bags into the dust air space, from where the further drainage takes place. This passage of water and of the dust and product particles through the Filter bags cause an additional clogging of the filter bags from the inside, which reduces their service life and impairs the actual cleaning of the process air.
Aufgabe der Erfindung ist es, eine Filtereinheit zum Reinigen von staubbeladener Prozessluft zu schaffen, bei der der Reinluftraum und/oder jeder Filterschlauch von innen reinigbar ist.The object of the invention is to provide a filter unit for cleaning dust-laden process air, in which the clean air space and / or each filter hose can be cleaned from the inside.
Erfindungsgemäß wird die Aufgabe durch die Merkmale einer der Patent- ansprüche 1 und 2 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Ansprüchen 3 bis 9 beschrieben.According to the invention, the object is achieved by the features of one of claims 1 and 2. Advantageous embodiments of the invention are described in claims 3 to 9.
Es liegt im Rahmen einer vorteilhaften Ausgestaltung, dass in einer Filtereinheit im Reinluftraum und im Bereich der Schlauchöffnung Waschdüsen angeordnet sein können.It is within the scope of an advantageous embodiment that washing nozzles can be arranged in a filter unit in the clean air space and in the area of the hose opening.
Vorteilhaft an der Erfindung ist, dass Verunreinigungen im Reinluftraum und an der Innenseite der Filterschläuche ohne Demontage der Filtereinheit beseitigt werden können.An advantage of the invention is that contamination in the clean air space and on the inside of the filter bags can be removed without dismantling the filter unit.
Weiterhin ist zusätzlich während der Druckluftimpulse zum Abstoßen des Filterkuchens das Reinigen der Außenseite des Schlauchbodens erreichbar.Furthermore, cleaning of the outside of the tube base can also be achieved during the compressed air pulses to repel the filter cake.
Die Erfindung wird nachstehend anhand von Ausführungsbeispielen näher erläutert. Die zugehörigen Zeichnungen zeigen:The invention is explained in more detail below on the basis of exemplary embodiments. The associated drawings show:
Fig. 1 : Prinzipdarstellung einer Filtereinheit im SchnittFig. 1: Basic diagram of a filter unit in section
Fig. 2: Schnittdarstellung vom unterem Ende des Filterschlauches während eines Druckluftimpluses Fig. 3: Schnittdarstellung vom unterem Ende des Filterschlauches während Anfall von ReinigungsflüssigkeitFig. 2: Sectional view of the lower end of the filter hose during a compressed air impulse. Fig. 3: Sectional view of the lower end of the filter hose during the occurrence of cleaning fluid
Fig. 4: Schnittdarstellung vom unterem Ende des Filterschlauches während der Filtrierphase Fig. 5:Darstellung der Bodenplatte vom Filterschlauch Fig. 6: Darstellung der Schlauchöffnung Die Filtereinheit zum Reinigen von staubbeladener Prozessluft besteht aus dem vertikal ausgerichteten Filtergehäuse 1 , das mittels eines Trennbodens 2 in einen obenliegenden Reinluftraum 10 und in einen untenliegenden Staubluftraum 9 geteilt ist. In dem Trennboden 2 sind eine Vielzahl von Schlauchöffnungen 6 angeordnet, in denen jeweils ein nach zum Reinluftraum 10 hin offener Filterschlauch 5 eingehängt ist und unter seinem Eigengewicht hängend in den Staubraum 9 hineinragt. Im Reinluftraum 10 sind zu dessem Waschen aktivierbare, den gesamten Reinluftraum 10 mit Waschwasser besprühende Waschdüsen 3 und im Trennboden 2 zwischen den Filterschläuchen 5 ein oder mehrere schaltbare Ablassventile 11 angeordnet. An jedem Schlauchboden 12 der Filterschläuche 5 ist mindestens ein Auslassventil 7 angeordnet. Dadurch läuft das Waschwasser quasi von selbst ohne Hilfsenergie oder gesteuert in den Staubluftraum 9 ab. Bei dem Auslassventil 7 ist der Schlauchboden 12 mit einer oder mehreren Schlauchbodenöffnungen 14 versehen und diese sind von einer mit dem Schlauchboden 12 verbundenen Ventilmembrane 13 in Wirkrichtung der Prozessluft abdichtend überdeckt. Die Waschdüsen 3 stehen mit einem Schaltventil 4 und deren zugeordneten Steuerung 8 in Wirkverbindung.Fig. 4: Sectional view of the lower end of the filter hose during the filtering phase. Fig. 5: Representation of the bottom plate of the filter hose. Fig. 6: Representation of the hose opening The filter unit for cleaning dust-laden process air consists of the vertically oriented filter housing 1, which is divided into an overhead clean air space 10 and an underlying dust air space 9 by means of a separating floor 2. A plurality of hose openings 6 are arranged in the partition 2, in each of which a filter hose 5 which is open towards the clean air space 10 is suspended and projects into the dust chamber 9 hanging under its own weight. In the clean air chamber 10, wash nozzles 3 which can be activated for the washing and which spray the entire clean air chamber 10 with washing water are arranged, and one or more switchable drain valves 11 are arranged in the partition 2 between the filter bags 5. At least one outlet valve 7 is arranged on each tube plate 12 of the filter tubes 5. As a result, the wash water runs into the dust air space 9 virtually without any auxiliary energy or under controlled control. In the outlet valve 7, the tube sheet 12 is provided with one or more tube sheet openings 14 and these are covered by a valve membrane 13 connected to the tube sheet 12 in a sealing manner in the effective direction of the process air. The washing nozzles 3 are operatively connected to a switching valve 4 and its associated control 8.
Die Ablassventile 11 im Trennboden 2 stehen mit einer Steuerung 15 in Wirkverbindung.The drain valves 11 in the partition 2 are operatively connected to a controller 15.
Zum Reinigen der staubbeladenen Prozessluft wird diese dem Staubluftraum 9 zugeführt und durchdringt die Filterschläuche 5. Dabei setzt sich der Staub an der dem Staubluftraum 9 zugewandten Seite der Filterschläuche 5 ab. Dieser entstehende Staubkuchen wird bedarfsweise mit einer nicht dargestellten Einrichtung entfernt. Während des Betreibens der Filtereinheit setzen sich auch Staubpartikel an der Innenseite der Filterschläuche 5 und im Reinluftraum 10 ab.To clean the dust-laden process air, it is fed to the dust air space 9 and penetrates the filter bags 5. The dust settles on the side of the filter bags 5 facing the dust air room 9. This resulting dust cake is removed if necessary with a device, not shown. During the operation of the filter unit, dust particles also settle on the inside of the filter bags 5 and in the clean air space 10.
Gemäß der Erfindung werden die Waschdüsen 3 durch das über die Steuerung 8 betätigte Schaltventil 4 aktiviert, so dass die Innenseite der Filterschläuche 5 und der Reinluftraum 10 mit Waschwasser bespritzt und gereinigt werden. Zum Ablaufen des Waschwassers werden die Ablassventile 11 geöffnet, wodurch das Waschwasser in den Staubluftraum 9 und von dort nach außerhalb der Filtereinheit oder entsprechend einer nicht dargestellten Lösung direkt nach außen abfliessen kann. Das in die Filterschläuche 5 gelangende Waschwasser reinigt diese . Das am Schlauchboden ankommende Waschwasser wölbt die Ventilmembrane 13 entgegen dem Schlauchboden 12, so dass das Waschwasser in den Staubluftraum 9 und von dort nach außerhalb der Filtereinheit abfliessen kann, wie in Figur 3 dargestellt. Vor bzw. beim Aktivieren der Prozessluft wird die Ventilmembrane 13 wieder gegen den Schlauchboden 12 gedrückt, wodurch die erforderliche Abdichtung der Filterschläuche 5 während des Reinigungsprozesse erreicht ist. Gleichfalls werden die Ablassventile 11 im Trennboden 2 geschlossen.According to the invention, the washing nozzles 3 are activated by the switching valve 4 actuated by the control 8, so that the inside of the filter bags 5 and the clean air space 10 are sprayed with washing water and cleaned. To drain the washing water, the drain valves 11 are opened, so that the washing water can flow into the dust air space 9 and from there to the outside of the filter unit or according to a solution, not shown, directly to the outside. The washing water entering the filter bags 5 cleans them. The wash water arriving at the tube sheet bulges the valve membrane 13 against the tube sheet 12, so that the wash water can flow into the dust air space 9 and from there to the outside of the filter unit, as shown in FIG. 3. Before or when activating the process air, the valve membrane 13 is pressed again against the tube bottom 12, as a result of which the required sealing of the filter tubes 5 is achieved during the cleaning process. Likewise, the drain valves 11 in the partition 2 are closed.
Eine Zusatzfunktion des Auslassventils 7 besteht darin, dass die Druckluft bei Impulsen zum Abstossen des Filterkuchens, wie in Figur 2 gezeigt, die Ventilmembrane 13 vom Schlauchboden 12 vorzugsweise von selbst kurz lüftet. Die dabei abströmende Druckluft reinigt die Außenseite des Schlauchbodens 12 von Verunreinigungen.An additional function of the outlet valve 7 is that the compressed air, in the event of impulses for repelling the filter cake, as shown in FIG. 2, briefly ventilates the valve membrane 13 from the tube bottom 12 by itself. The compressed air flowing out cleans the outside of the tube sheet 12 of impurities.
Nach einer weiteren Lösung ist im Bereich jeder Schlauchöffnung 6 mindestens eine zum Waschen aktivierbare, die Innenseite des Filterschlauches 5 mit Waschwasser besprühende Waschdüse 16 und an jedem Schlauchboden 12 mindestens ein Auslassventil 7 angeordnet. Die Waschdüsen 16 stehen mit einem nicht dargestellten Schaltventil und deren zugeordneten Steuerung in Wirkverbindung. Die weitere Ausführungsform und die Wirkungsweise entspricht dem ersten Ausführungsbeispiel. Bei der zweiten Lösung werden jedoch nur die Innenseiten der Filterschläuche 5 gereinigt.According to a further solution, in the area of each hose opening 6 there is at least one wash nozzle 16 which can be activated for washing and which sprays the inside of the filter hose 5 with washing water and at least one outlet valve 7 on each hose base 12. The washing nozzles 16 are operatively connected to a switching valve (not shown) and its associated control. The further embodiment and the mode of operation correspond to the first embodiment. In the second solution, however, only the inside of the filter bags 5 are cleaned.
Bei allen vorgenannten Lösungen kann anstelle des Auslassventils 7 der Schlauchboden 12 mediendurchlässig gestaltet werden, indem dieser siebartig aus beliebigen Material ausgebildet ist. Der Boden des Stützkörpers, der außerhalb des Filterschlauches 5 angeordnet ist, ist als eine geschlossene Fläche, die eine kleine Durchgangsbohrung aufweist, ausgebildet.In all of the aforementioned solutions, instead of the outlet valve 7, the tube bottom 12 can be made media-permeable by being made of any material in a sieve-like manner. The bottom of the support body, which is arranged outside the filter tube 5, is as a closed surface having a small through hole is formed.
Der Unterschied in der Wirkungsweise besteht darin, dass das amThe difference in the mode of action is that the
Schlauchboden 12 ankommende Waschwasser sofort den siebartigen Schlauchboden 12 durchdringt und insbesondere durch dieHose base 12 incoming wash water immediately penetrates the sieve-like hose base 12 and in particular through the
Durchgangsbohrung des Bodens vom Stützkörper in den Staubluftraum 9 läuft. Die erforderliche Dichtheit der Filterschläuche 5 ist dadurch gegeben, dass während des Reinigungsprozesses der Schlauchboden 12 gegen den Boden des Stützkörper abdichtend gedrückt wird. Auch bei der Lösung werden jedoch nur die Innenseiten der Filterschläuche 5 gereinigt. Through hole in the bottom of the support body in the dust air space 9 runs. The required tightness of the filter bags 5 is given by the tube bottom 12 being pressed against the bottom of the support body in a sealing manner during the cleaning process. Even with the solution, however, only the inside of the filter bags 5 are cleaned.

Claims

Patentansprüche: claims:
1. Filtereinheit zum Reinigen von staubbeladener Prozessluft, bei der ein vertikal ausgerichtetes Filtergehäuse (1 ) durch einen Trennboden (2) in einen obenliegenden Reinluftraum (10) und in einen untenliegenden Staubluftraum (9) geteilt ist, wobei in dem Trennboden (2) eine Vielzahl von Schlauchöffnungen (6) angeordnet sind, in denen jeweils ein nach zum Reinluftraum (10) hin offener Filterschlauch (5) eingehängt ist, dadurch gekennzeichnet, dass im Reinluftraum (10) zum Waschen aktivierbare, den gesamten Reinluftraum mit Waschwasser besprühende Waschdüsen (3) und im Trennboden (2) zwischen den Schlauchöffnungen (6) ein oder mehrere schaltbare Ablassventile (11) angeordnet sind und an jedem Schlauchboden (12) mindestens ein Auslassventil (7) angeordnet ist, wodurch das Waschwasser quasi von selbst ohne Hilfsenergie oder gesteuert in den Staubluftraum (9) abläuft.1. Filter unit for cleaning dust-laden process air, in which a vertically aligned filter housing (1) is divided by a partition (2) into an overhead clean air space (10) and an underlying dust air space (9), one in the partition (2) A plurality of hose openings (6) are arranged, in each of which a filter hose (5) which is open towards the clean air space (10) is suspended, characterized in that wash nozzles (3) which can be activated for washing in the clean air space (10) and wash the entire clean air space ) and one or more switchable drain valves (11) are arranged in the dividing plate (2) between the hose openings (6) and at least one outlet valve (7) is arranged on each hose plate (12), which means that the washing water virtually by itself without auxiliary energy or controlled in the dust air space (9) expires.
2. Filtereinheit zum Reinigen von staubbeladener Prozessluft, bei der ein vertikal ausgerichtetes Filtergehäuse (1) durch einen Trennboden (2) in einen obenliegenden Reinluftraum (10) und in einen untenliegenden Staubluftraum (9) geteilt ist, wobei in dem Trennboden (2) eine Vielzahl von Schlauchöffnungen (6) angeordnet sind, in denen jeweils ein nach zum Reinluftraum (10) hin offener Filterschlauch (5) eingehängt ist, und dass im Bereich jeder Schlauchöffnung (6) mindestens eine zum Waschen aktivierbare, die Innenseite des Filterschlauches (5) mit Waschwasser besprühende Waschdüse (16) angeordnet ist, dadurch gekennzeichnet, dass an jedem Schlauchboden (12) mindestens ein Auslassventil (7) angeordnet ist, wodurch das Waschwasser quasi von selbst ohne Hilfsenergie oder gesteuert in den Staubluftraum (9) abläuft. 2. Filter unit for cleaning dust-laden process air, in which a vertically aligned filter housing (1) is divided by a partition (2) into an overhead clean air space (10) and an underlying dust air space (9), one in the partition (2) A plurality of hose openings (6) are arranged, in each of which a filter hose (5) which is open towards the clean air space (10) is suspended, and that in the region of each hose opening (6) at least one can be activated for washing, the inside of the filter hose (5) Washing nozzle spraying with washing water is arranged, characterized in that at least one outlet valve (7) is arranged on each tube plate (12), as a result of which the washing water runs into the dust air space (9) virtually without any auxiliary energy or in a controlled manner.
3. Filtereinheit zum Reinigen von staubbeladener Prozessluft nach den Ansprüchen 1 und 2, gekennzeichnet dadurch, dass das Auslassventil (7) derart gestaltet ist, dass der Schlauchboden (12) mit einer oder mehreren Schlauchbodenöffnungen (14) versehen ist und diese von einer mit dem Schlauchboden (12) verbundenen Ventilmembrane (13) in Wirkrichtung des Reinigungsgases abdichtend überdeckt sind.3. Filter unit for cleaning dust-laden process air according to claims 1 and 2, characterized in that the outlet valve (7) is designed such that the tube sheet (12) is provided with one or more tube sheet openings (14) and one of these with the Hose bottom (12) connected valve membrane (13) are covered sealingly in the direction of action of the cleaning gas.
4. Filtereinheit zum Reinigen von staubbeladener Prozessluft nach den4. Filter unit for cleaning dust-laden process air according to the
Ansprüchen 1 und 2, gekennzeichnet dadurch, dass das Auslassventil (7) als ein schaltbares Ventil gestaltet ist.Claims 1 and 2, characterized in that the outlet valve (7) is designed as a switchable valve.
5. Filtereinheit zum Reinigen von staubbeladener Prozessluft nach den Ansprüchen 1 und 2, gekennzeichnet dadurch, dass anstelle des Auslassventils (7) der Boden des Stützkörpers, der außerhalb des Filterschlauches (5) angeordnet ist, als eine geschlossene Fläche, die eine kleine Durchgangsbohrung aufweist, und der Schlauchboden (12) des Filterschlauches (5) mediendurchlässig ausgebildet ist.5. Filter unit for cleaning dust-laden process air according to claims 1 and 2, characterized in that instead of the outlet valve (7) the bottom of the support body, which is arranged outside the filter hose (5), as a closed surface which has a small through hole , and the tube bottom (12) of the filter tube (5) is designed to be media-permeable.
6. Filtereinheit zum Reinigen von staubbeladener Prozessluft nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet dadurch, dass die Waschdüsen (3) mit einem Schaltventil (4) und deren zugeordneten Steuerung (8) in Wirkverbindung stehen. 6. Filter unit for cleaning dust-laden process air according to one or more of the preceding claims, characterized in that the washing nozzles (3) are in operative connection with a switching valve (4) and its associated control (8).
7. Filtereinheit zum Reinigen von staubbeladener Prozessluft nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet dadurch, dass die Ablassventile (11) mit einer Steuerung (15) in Wirkverbindung stehen.7. Filter unit for cleaning dust-laden process air according to one or more of the preceding claims, characterized in that the drain valves (11) are operatively connected to a controller (15).
8. Filtereinheit zum Reinigen von staubbeladener Prozessluft nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet dadurch, dass die Waschdüsen (16) mit einem Schaltventil und deren zugeordneten Steuerung in Wirkverbindung stehen.8. Filter unit for cleaning dust-laden process air according to one or more of the preceding claims, characterized in that the washing nozzles (16) are operatively connected to a switching valve and its associated control.
9. Filtereinheit zum Reinigen von staubbeladener Prozessluft nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet dadurch, dass durch Druckluftimpulse zum Abstoßen des Filterkuchens durch ein9. Filter unit for cleaning dust-laden process air according to one or more of the preceding claims, characterized in that by compressed air pulses for repelling the filter cake by a
Lüften des jeweiligen Auslassventils (7) ein Reinigen der Außenseite des Schlauchbodens (12) erreichbar ist. If the respective outlet valve (7) is ventilated, the outside of the tube base (12) can be cleaned.
EP00987190A 2000-11-29 2000-11-29 Filter unit for purifying dust-laden process air Withdrawn EP1372815A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2000/004254 WO2002043835A1 (en) 2000-11-29 2000-11-29 Filter unit for purifying dust-laden process air

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EP1372815A1 true EP1372815A1 (en) 2004-01-02

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EP (1) EP1372815A1 (en)
AU (1) AU2001223511A1 (en)
WO (1) WO2002043835A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007041733B4 (en) 2007-09-04 2009-09-03 Hüttlin Gmbh Filter assembly for cleaning particulate contaminated gases and method for cleaning at least one filter unit

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Publication number Priority date Publication date Assignee Title
US3623910A (en) * 1969-11-28 1971-11-30 Flex Kleen Corp Method and apparatus for laundering dust collectors
DE3316527A1 (en) * 1983-05-06 1984-11-08 Henkel KGaA, 4000 Düsseldorf METHOD FOR WASHING THE FILTER ELEMENTS OF A GAS FILTER AND DEVICE FOR CARRYING OUT THE METHOD
GB9323494D0 (en) * 1993-11-15 1994-01-05 Hosokawa Micron Limited Improvements in relating to apparatus for separating particulate and/or powdery material from an entraining gas

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0243835A1 *

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WO2002043835A1 (en) 2002-06-06
AU2001223511A1 (en) 2002-06-11

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