EP0067422B1 - Movable extraction unit for dust, clouds of paint particles and the like - Google Patents

Movable extraction unit for dust, clouds of paint particles and the like Download PDF

Info

Publication number
EP0067422B1
EP0067422B1 EP82105088A EP82105088A EP0067422B1 EP 0067422 B1 EP0067422 B1 EP 0067422B1 EP 82105088 A EP82105088 A EP 82105088A EP 82105088 A EP82105088 A EP 82105088A EP 0067422 B1 EP0067422 B1 EP 0067422B1
Authority
EP
European Patent Office
Prior art keywords
filter
air
housing
exhaust unit
unit according
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
EP82105088A
Other languages
German (de)
French (fr)
Other versions
EP0067422A3 (en
EP0067422A2 (en
Inventor
Martin Hanke
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.)
Hanke Martin
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 AT82105088T priority Critical patent/ATE21635T1/en
Publication of EP0067422A2 publication Critical patent/EP0067422A2/en
Publication of EP0067422A3 publication Critical patent/EP0067422A3/en
Application granted granted Critical
Publication of EP0067422B1 publication Critical patent/EP0067422B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B11/00—Devices for reconditioning breathing air in sealed rooms

Definitions

  • the invention relates to a mobile suction device for dusts, paint mist, vapors and the like, with a portable housing, in which a blower generating a vacuum in the interior of the housing and at least one activated carbon filter through which air flows are arranged and which has a filter surface on the wall side, through which large-area contaminated room air can be sucked in is that can be returned to the room after cleaning in recirculation mode via an air outlet of the housing.
  • Such a mobile suction device in the form of a so-called room air cleaning device is known from DE-A-2 621 172.
  • This known device has a circular cylindrical housing which is made of double-walled labyrinth or perforated sheet metal shells and two labyrinth or perforated sheet metal sheets covering the bottom.
  • the hollow interiors between the labyrinth or perforated sheet metal sheaths and the labyrinth or perforated sheet metal disks on the floor are intended to accommodate granular bulk material (activated carbon etc.)
  • a blower is arranged, which is suspended from a conically shaped funnel body attached to the end of the housing.
  • the entire surface of the device that can be used in any position of use is designed as a filter surface, locally concentrated suction cannot be achieved. Rather, the device is rather intended for continuous air recirculation, as is required in hospitals, manufacturing rooms with an odor-laden atmosphere, etc.
  • a locally concentrated suction allows a suction device known from NL-A-7 510 215, but this works with a suction hose connected to a filter box, which opens into a suction mouthpiece with a suction opening that can be moved vertically on a vertical rod.
  • a suction device which requires the stationary attachment of the vertical rod for the suction mouthpiece, is cumbersome and complex and cannot be used for mobile applications.
  • the object of the invention is therefore to provide a mobile, user-friendly and universally applicable suction device which allows local pollutant concentrations to be prevented in air-polluting work in workshops or the like, without the need for stationary air lines and the like. Like. would be required.
  • the mobile suction device is characterized according to the invention in that in the case of the cabinet-like housing, only one wall side is designed as a filter surface, that the activated carbon filter downstream of the blower is formed by a number of filter cartridges evenly pressurized by air, and that the filter cartridges have an annular filter space filled with activated carbon with a cylindrical outer surface and with an inner surface that widens conically towards the blower.
  • the division of the activated carbon filter into a number of filter cartridges downstream of the fan on the pressure side, which the fan blows evenly on the air, on the one hand enables the filter material to be used in a fluidically favorable manner and thus achieve a high loading limit, and on the other hand simple filter replacement by replacing the filter cartridges.
  • the ring-shaped filter chamber with a cylindrical outer surface and with an inner surface that widens conically towards the blower ensures uniform loading of the entire filter cartridges and thus intensive use of the filter material.
  • the filter material is not flowed through radially, but diagonally upwards, which results in a long filter path with small radial dimensions of the cartridges.
  • the portable cabinet housing can also be brought directly to the place where the pollutant accumulates, with the pollutants being sucked off concentratedly on the spot.
  • a suspended matter filter is arranged in the housing, which is connected downstream of the filter surface - which then in turn acts as a suspended matter prefilter.
  • the particulate filter is located on the pressure side of the fan. It is used to filter out the dust content of the polluted air.
  • the filter surface provided in the area of one wall side of the cabinet housing is expediently formed by filter cassettes which are sealed and releasably connected to the cabinet housing. These filter cartridges can be easily replaced if they are dirty, without requiring any special intervention in the suction device itself.
  • adjustable shielding walls can be arranged on the cabinet housing in the region of the boundary of the filter surface, through which the suction zone is limited.
  • the effectiveness of the filters depends on the fact that they are not excessively dirty or loaded.
  • the mobile suction device therefore advantageously has monitoring devices arranged in the cabinet housing for the degree of contamination or loading of the individual filters.
  • at least one of the filters can be assigned a differential pressure measuring device which determines the pressure drop occurring on the filter.
  • the adsorption of the color thinner consisting of aromatic hydrocarbons by the activated carbon of the activated carbon filter leads to an increase in the weight of the filter.
  • This increase in weight can be used for monitoring in that the activated carbon filter is assigned a weighing device which has a display device, which indicates the increase in weight and, if necessary, lights up a warning light arranged on the cabinet housing in a visible position in order to indicate that the activated carbon filter is desorbed or replaced got to.
  • the filter cartridges are placed in a sealed manner on an air guide funnel which is arranged in the cabinet housing and is connected to the pressure side of the blower and which has air passages assigned to the individual filter cartridges which lead into the filter cartridge.
  • one of the filter cartridges can be connected to the control device as a test filter cartridge and height-adjustable and sealed connected to the air guide funnel via a liquid-filled labyrinth seal.
  • the test filter cartridge can be suspended in the cabinet housing so that it can move in height, whereby its weight is balanced when unloaded.
  • the air outlet of the cabinet housing is formed directly by the air outlet openings of the filter cartridges opening out into the open.
  • the arrangement can also be such that the filter surface is covered on the outside by at least one air collection funnel which is detachably fastened to the housing and carries a suction port for connecting at least one air suction hose.
  • the mobile suction device for dusts, paint mist, vapors and the like shown in the drawing has a closed, cabinet-like sheet metal housing 1, which carries rollers 2 on its underside, by means of which it can be moved on the floor.
  • the rollers 2 are provided with a detachable lock.
  • the front side wall 3 of the cabinet housing 1 is formed in the manner shown in FIGS. 3 and 4 in a protruding manner in a gable or triangular manner, so that two partial surfaces 3a, 3b enclosing an angle of approximately 90 ° result, which are air-permeable as filter surfaces .
  • two layers of filter cassettes 4, 4a are sealed on the surfaces 3a, 3b and releasably connected to the cabinet housing 1.
  • the filter cassettes 4, 4a form two suspended matter filters; they can be removed from the cabinet housing 1 and replaced with new filter cartridges as soon as their maximum permissible degree of contamination has been reached.
  • a fan 5 is arranged in the cabinet housing 1, the fan wheel of which is driven by an electric motor 6, which is housed in the cabinet housing 1 in a completely encapsulated manner.
  • the encapsulation indicated at 7 is connected to the atmosphere via its own supply and exhaust air duct 8, the supply air duct opening at 9 on the rear side of the cabinet housing 1 opposite the filter surface formed by the filter cassettes 4, 4a, as can be seen from FIG. 2 .
  • the blower 5 generates a negative pressure in the interior of the cabinet housing 1, under the effect of which, through the filter surface of the filter cassettes 4, 4a arranged on the front of the cabinet housing 1, contaminated room air over a large area is sucked in, which is conveyed back into the room after cleaning in recirculation mode via an air outlet provided at the top of the cabinet housing 1 with 10.
  • the filter cassettes 4, 4a can be followed by at least one further suspended matter filter 11 arranged in the cabinet housing, which is arranged on the pressure side of the blower 5.
  • the suspended matter filter 11 is then in turn connected to an activated carbon filter 12 (see FIGS. 4 to 7) which is also arranged in the cabinet housing 1.
  • the dust components contained in the polluted air are filtered out, while the activated carbon filter 12 serves to absorb solvent vapors contained in the air.
  • two adjustable shielding walls 13 are articulated on the cabinet housing 1 on both sides of the front wall 3 and can be pivoted about vertical joint axes.
  • the cabinet housing is sealed against the floor in the region of its front wall 3 by a brush strip 14.
  • the brush strip 14 also extends over the lower edge of the shielding walls 13, so that a seal against the floor is also present at this point.
  • the activated carbon filter 12 is formed by a number of filter cartridges 16, which are placed in a sealed manner on an air guide funnel 17 which is arranged in the cabinet housing 1 and is connected to the pressure side of the blower 5 and which has air passages 18 (FIG. 5) assigned to the individual filter cartridges 16 the filter cartridges open.
  • Each of the filter cartridges 16 has an annular filter chamber 19 which tapers conically towards the respective air passage 18 of the air guide funnel 17 and is filled with activated carbon (cf., for example, FIG. 5), which is technically advantageous on the one hand because the air throughput, as indicated by arrows 20 is indicated in Fig. 5, increases with increasing distance from the air passage 18 and on the other hand has proven to be favorable with regard to the service life of the filter cartridges.
  • a tightly closing upper plastic cushion 25 prevents the occurrence of short circuits during the filtering process in the event of a reduction in volume caused by shaking the activated carbon.
  • the degree of contamination and loading of the individual filters 4, 4a, 11, 12 can be monitored separately.
  • dedicated monitoring devices are provided, which indicate when the individual filters have to be replaced due to the maximum contamination or loading being reached.
  • the filter cassettes 4, 4a at 21 in FIG. 4 are assigned differential pressure measuring devices, which measure the pressure drop occurring across the filter cassettes and are connected to display devices (FIG. 3) on the front of the cabinet housing via measuring lines running in the cabinet housing 1.
  • the differential pressure measurement not only controls the degree of contamination of the filter, but also monitors the amount of air circulated, which can be kept under control. Switching devices can be provided in order to be able to control the filters individually.
  • the arrangement is such that one of the filter cartridges 16 designed in the manner of filter candles - namely the filter cartridge 16a in FIG. 4 - is designed as a test filter cartridge and is connected to a balance 24, the scale of which is visible from the outside Pointer 26 indicates the weight of the test filter cartridge 16a and thus the pollutant load.
  • test filter cartridge 16a is connected to the air guide funnel 17 to a limited extent via a liquid-filled labyrinth seal 27. It is suspended in a height-adjustable manner in the cabinet housing 1 by means of rollers 28 which are arranged in a fixed manner and by means of the cables 29 guided thereon, the cables 29 being connected at the end to counterweights 30 which balance the weight of the test filter cartridge 16a in the unloaded state.
  • the filter cartridges 16, 16a each have air outlet openings 31 that open out of the filter chamber 19 and together form the air outlet 10 of the cabinet housing 1.
  • the filter surface of the filter cassettes 4, 4a can be covered to the outside by an upstream air collection funnel 50, which is detachably fastened to the cabinet housing 1 by means of sashes and which carries a suction nozzle 51 for connecting flexible air suction hoses. which are placed with their free end in the assembly pit in order to collect the solvents, dusts and. suction.
  • the air collection funnels 50 with the associated suction ports 51 are shown in dashed lines in FIGS. 3, 4.
  • the cabinet housing 1 is constructed in such a way that, in the manner shown in FIGS. 8, 9, it has strip-like corner profiles 52 with an approximately C-shaped cross-sectional shape, with which plate-like wall parts 53, 54 are screwed at 55.
  • the C-shaped corner profiles 52 their inner contour shape corresponding profile pieces 56 are inserted, on which brackets or the like.
  • the profile pieces 56 are also screwed to the corner profiles 52 at 55.

Abstract

1. Mobile exhaust unit for dusts, paint mist, vapors and the like, comprising a movable housing which accommodates in its interior a blower (5) generating a vacuum and at least one activated charcoal filter (12) passed by an air flow, and which is provided on the wall side with a filter surface (at 4) through which contaminated room air can be drawn in over a large area, which air, after having been cleaned, can be returned into the room through an air outlet (10, 31) in the housing (1), characterized in that only one side of the cabinet-like housing (1) is designed as a filter area, that the activated charcoal filter (12) connected to the delivery side of the blower (5) is formed by a number of filter cartridges (16, 16a) to which air is supplied uniformly by the blower (5), and that the filter cartridges (16, 16a) comprise an annular filter chamber (19) which is filled with activated charcoal and which exhibits a cylindrical outer surface and an inner surface tapering outwardly towards the blower (5).

Description

Die Erfindung betrifft ein mobiles Absauggerät für Stäube, Farbnebel, Dämpfe und dergleichen, mit einem ortsveränderlichen Gehäuse, in dem ein in dem Gehäuseinnenraum einen Unterdruck erzeugendes Gebläse sowie zumindest ein luftdurchströmtes Aktivkohlenfilter angeordnet sind und das wandseitig eine Filterfläche aufweist, durch die grossflächig verschmutzte Raumluft ansaugbar ist, die nach der Reinigung im Umluftbetrieb über einen Luftauslass des Gehäuses wieder in den Raum zurückförderbar ist.The invention relates to a mobile suction device for dusts, paint mist, vapors and the like, with a portable housing, in which a blower generating a vacuum in the interior of the housing and at least one activated carbon filter through which air flows are arranged and which has a filter surface on the wall side, through which large-area contaminated room air can be sucked in is that can be returned to the room after cleaning in recirculation mode via an air outlet of the housing.

Ein solches mobiles Absauggerät ist in Gestalt eines sogenannten Raumluft-Reinigungsgerätes aus der DE-A-2 621 172 bekannt. Dieses bekannte Gerät weist ein kreiszylindrisches Gehäuse auf, das aus doppelwandigen Labyrinth- oder Lochblechmänteln und zwei den Boden bedeckenden Labyrinth- oder Lochblechscheiben hergestellt ist. Die hohlen Innenräume zwischen den Labyrinth-oder Lochblechmänteln und den Labyrinth- oder Lochblechscheiben am Boden sind zur Aufnahme von körnigem Schüttgut (Aktivkohle etc.) bestimmt. In dem von dem inneren Lochblechmantel umschlossenen Raum ist ein Gebläse angeordnet, das an einem an dem Gehäuse endseitig befestigten, konisch geformten Trichterkörper aufgehängt ist.Such a mobile suction device in the form of a so-called room air cleaning device is known from DE-A-2 621 172. This known device has a circular cylindrical housing which is made of double-walled labyrinth or perforated sheet metal shells and two labyrinth or perforated sheet metal sheets covering the bottom. The hollow interiors between the labyrinth or perforated sheet metal sheaths and the labyrinth or perforated sheet metal disks on the floor are intended to accommodate granular bulk material (activated carbon etc.) In the space enclosed by the inner perforated sheet jacket, a blower is arranged, which is suspended from a conically shaped funnel body attached to the end of the housing.

Dadurch, dass die gesamte Oberfläche des in jeder beliebigen Gebrauchslage einsetzbaren Gerätes als Filterfläche ausgebildet ist, lässt sich keine örtlich konzentrierte Absaugung erzielen. Das Gerät ist vielmehr eher für eine kontinuierliche Umluft-Erneuerung bestimmt, wie sie in Krankenhäusern, Fabrikationsräumen mit geruchsbelasteter Atmosphäre etc. erforderlich ist.Because the entire surface of the device that can be used in any position of use is designed as a filter surface, locally concentrated suction cannot be achieved. Rather, the device is rather intended for continuous air recirculation, as is required in hospitals, manufacturing rooms with an odor-laden atmosphere, etc.

Beispielsweise in Kraftfahrzeugkarosserie-Reparaturwerkstätten muss aber die Karosserie bevor sie in einer Farbspritzbox ihre Lackierung erhält, einer Vorbehandlung unterzogen werden, bei der eine erhebliche Staub- und Schmutzentwicklung sowie Lösungsmitteldämpfe der verwendeten Kunststoffgrundierungen etc. auftreten. Um der dadurch bedingten Gefährdung der mit diesen Arbeiten beschäftigten Personen abzuhelfen, ist es notwendig, solche örtliche Schadstoffkonzentrationen bei luftverschmutzenden Arbeiten in Werkstätten od. dgl. zu verhüten, d. h. Farbnebel od. dgl. am Orte ihres Entstehens wirksam abzusaugen. Dazu sind aber höhere Strömungsgeschwindigkeiten und insbesondere eine örtliche Konzentration der Absaugung erforderlich.For example, in motor vehicle body repair shops, the body must be subjected to a pretreatment before it gets its paint in a paint spraying box, in which considerable dust and dirt as well as solvent vapors of the plastic primers used etc. occur. In order to remedy the resulting danger to the people involved in this work, it is necessary to prevent such local concentrations of pollutants in air-polluting work in workshops or the like. H. Effective suction of paint mist or the like at the place where they arise. However, this requires higher flow velocities and in particular a local concentration of the suction.

Eine örtlich konzentrierte Absaugung gestattet zwar eine aus der NL-A-7 510 215 bekannte Absaugeinrichtung, doch arbeitet diese mit einem an einen Filterkasten angeschlossenen Absaugeschlauch, der in einem an einer Vertikalstange höhenverfahrbaren Saugmundstück mit einer Ansaugöffnung mündet. Eine solche Absaugeinrichtung, die die ortsfeste Anbringung der Vertikalstange für das Saugmundstück voraussetzt, ist aber umständlich und aufwendig und für mobile Einsatzfälle nicht brauchbar.A locally concentrated suction allows a suction device known from NL-A-7 510 215, but this works with a suction hose connected to a filter box, which opens into a suction mouthpiece with a suction opening that can be moved vertically on a vertical rod. Such a suction device, which requires the stationary attachment of the vertical rod for the suction mouthpiece, is cumbersome and complex and cannot be used for mobile applications.

Schliesslich ist es aus der FR-A-2 442 084 bekannt, zum Farbspritzen von Karosseriewänden von Omnibussen u. dgl. einen sogenannten Absaugrahmen zu benutzen, der auf seiner Vorderseite eine begehbare Öffnung aufweist und an seiner Hinterseite gelenkige Wandteile trägt, die an dem Rahmen angelenkt sind und die gemeinsam mit dem zu behandelnden Objekt die Rückwand des Rahmens bilden. Die Luftabsaugung erfolgt dabei innerhalb des Rahmens durch seitlich angeordnete Filterflächen. Ein solcher Rahmen, der gemeinsam mit dem zu behandelnden Objekt eine Art Farbspritzkabine bildet, in der sich die Bedienungsperson aufhält und deren Seitenwände Absaugeinrichtungen für die Farbnebel aufweisen, ist nicht universell einsetzbar und auf die Verwendung zum erwähnten Farbspritzen an Karosseriewänden von Omnibussen u. dgl. beschränkt.Finally, it is known from FR-A-2 442 084 for spraying paint on body walls of buses and the like. Like. Use a so-called suction frame, which has a walk-in opening on its front side and carries articulated wall parts on its rear side, which are hinged to the frame and which together with the object to be treated form the rear wall of the frame. The air extraction takes place within the frame through laterally arranged filter surfaces. Such a frame, which together with the object to be treated forms a type of paint spray booth in which the operator is located and whose side walls have suction devices for the paint mist, cannot be used universally and is suitable for the use of the above-mentioned paint spraying on the body walls of buses and the like. The like. Limited.

Aufgabe der Erfindung ist es deshalb, ein mobiles, anwendungsfreundliches und universell einsetzbares Absauggerät zu schaffen, das es gestattet, örtliche Schadstoffkonzentrationen bei luftverschmutzenden Arbeiten in Werkstätten od. dgl. zu verhüten, ohne dass dazu stationär verlegte Luftleitungen u. dgl. erforderlich wären.The object of the invention is therefore to provide a mobile, user-friendly and universally applicable suction device which allows local pollutant concentrations to be prevented in air-polluting work in workshops or the like, without the need for stationary air lines and the like. Like. would be required.

Zur Lösung dieser Aufgabe ist das mobile Absauggerät erfindungsgemäss dadurch gekennzeichnet, dass bei dem schrankartigen Gehäuse lediglich eine Wandseite als Filterfläche ausgebildet ist, dass das dem Gebläse druckseitig nachgeschaltete Aktivkohlefilter durch eine Anzahl von dem Gebläse gleichmässig mit Luft beaufschlagter Filterpatronen gebildet ist, und dass die Filterpatronen einen mit Aktivkohle gefüllten, ringförmigen Filterraum mit zylindrischer Aussenfläche sowie mit zu dem Gebläse hin sich konisch erweiternder Innenfläche aufweisen.To achieve this object, the mobile suction device is characterized according to the invention in that in the case of the cabinet-like housing, only one wall side is designed as a filter surface, that the activated carbon filter downstream of the blower is formed by a number of filter cartridges evenly pressurized by air, and that the filter cartridges have an annular filter space filled with activated carbon with a cylindrical outer surface and with an inner surface that widens conically towards the blower.

Dadurch, dass in dem Schrankgehäuse lediglich eine Wandseite als Filterfläche ausgebildet ist, wird die erforderliche Konzentration und Ausrichtung des Absaugluftstromes auf den Ort der Schadstoffentstehung hin gewährleistet.The fact that only one wall side is designed as a filter surface in the cabinet housing ensures the required concentration and orientation of the exhaust air flow to the location of the pollutant generation.

Die Aufteilung des Aktivkohlefilters in eine Anzahl dem Gebläse druckseitig nachgeschalteter, von dem Gebläse gleichmässig mit Luft beaufschlagter Filterpatronen ergibt einerseits die Möglichkeit, das Filtermaterial strömungstechnisch günstig auszunützen und damit eine hohe Beladungsgrenze zu erzielen, und andererseits eine einfache Filtererneuerung durch Austausch der Filterpatronen. Der ringförmige Filterraum mit zylindrischer Aussenfläche sowie mit zu dem Gebläse hin sich konisch erweiternder Innenfläche gewährleistet eine gleichmässige Beladung der ganzen Filterpatronen und damit eine intensive Ausnutzung des Filtermateriales. Das Filtermaterial ist nämlich nicht radial durchströmt, sondern schräg aufwärts, wodurch sich ein langer Filterweg bei kleinen Radialabmessungen der Patronen ergibt.The division of the activated carbon filter into a number of filter cartridges downstream of the fan on the pressure side, which the fan blows evenly on the air, on the one hand enables the filter material to be used in a fluidically favorable manner and thus achieve a high loading limit, and on the other hand simple filter replacement by replacing the filter cartridges. The ring-shaped filter chamber with a cylindrical outer surface and with an inner surface that widens conically towards the blower ensures uniform loading of the entire filter cartridges and thus intensive use of the filter material. The filter material is not flowed through radially, but diagonally upwards, which results in a long filter path with small radial dimensions of the cartridges.

Das ortsveränderliche Schrankgehäuse kann im übrigen unmittelbar an den Ort des Schadstoffanfalls gebracht werden, wobei die Schadstoffe an Ort und Stelle konzentriert abgesaugt werden.The portable cabinet housing can also be brought directly to the place where the pollutant accumulates, with the pollutants being sucked off concentratedly on the spot.

Um die Filterwirkung zu erhöhen, ist es zweckmässig, wenn zwischen dem Gebläse und dem Aktivkohlefilter in dem Gehäuse ein Schwebstoffilter angeordnet ist, das der Filterfläche - die dann ihrerseits als Schwebstoff-Vorfilter wirkt - nachgeschaltet ist. Das Schwebstoffilter ist auf der Druckseite des Gebläses angeordnet. Es dient dazu, den Staubgehalt der verschmutzten Luft auszufiltern.In order to increase the filter effect, it is useful if between the fan and the Activated carbon filter, a suspended matter filter is arranged in the housing, which is connected downstream of the filter surface - which then in turn acts as a suspended matter prefilter. The particulate filter is located on the pressure side of the fan. It is used to filter out the dust content of the polluted air.

Die im Bereiche der einen Wandseite des Schrankgehäuses vorgesehene Filterfläche ist zweckmässigerweise durch Filterkassetten gebildet, die abgedichtet und lösbar mit dem Schrankgehäuse verbunden sind. Diese Filterkassetten können bei Verschmutzung einfach ausgewechselt werden, ohne dass dazu besondere Eingriffe in das Absauggerät selbst erforderlich wären.The filter surface provided in the area of one wall side of the cabinet housing is expediently formed by filter cassettes which are sealed and releasably connected to the cabinet housing. These filter cartridges can be easily replaced if they are dirty, without requiring any special intervention in the suction device itself.

Um die von dem Absauggerät ausgehende Saugwirkung zu erhöhen, können an dem Schrankgehäuse im Bereiche der Berandung der Filterfläche verstellbare Abschirmwände angeordnet sein, durch die die Absaugzone begrenzt ist.In order to increase the suction effect emanating from the suction device, adjustable shielding walls can be arranged on the cabinet housing in the region of the boundary of the filter surface, through which the suction zone is limited.

Die Wirksamkeit der Filter hängt davon ab, dass diese nicht übermässig verschmutzt bzw. beladen sind. Das mobile Absauggerät weist deshalb mit Vorteil in dem Schrankgehäuse angeordnete Überwachungseinrichtungen für den Verschmutzungs- oder Beladungsgrad der einzelnen Filter auf. Dazu kann zumindest einem der Filter ein den an dem Filter auftretenden Druckabfall feststellendes Differenzdruckmessgerät zugeordnet sein.The effectiveness of the filters depends on the fact that they are not excessively dirty or loaded. The mobile suction device therefore advantageously has monitoring devices arranged in the cabinet housing for the degree of contamination or loading of the individual filters. For this purpose, at least one of the filters can be assigned a differential pressure measuring device which determines the pressure drop occurring on the filter.

Die Adsorption der aus aromatischen Kohlenwasserstoffen bestehenden Farbverdünnungsmittel durch die Aktivkohle des Aktivkohlefilters führt zu einer Gewichtserhöhung des Filters. Diese Gewichtszunahme kann zur Überwachung dadurch ausgenutzt werden, dass dem Aktivkohlefilter eine eine Anzeigeeinrichtung aufweisende Wägeeinrichtung zugeordnet ist, die die Gewichtszunahme anzeigt und gegebenenfalls eine an dem Schrankgehäuse an sichtbarer Stelle angeordnete Warnleuchte zum Aufleuchten bringt, um damit anzuzeigen, dass das Aktivkohlefilter desorbiert oder ausgetauscht werden muss.The adsorption of the color thinner consisting of aromatic hydrocarbons by the activated carbon of the activated carbon filter leads to an increase in the weight of the filter. This increase in weight can be used for monitoring in that the activated carbon filter is assigned a weighing device which has a display device, which indicates the increase in weight and, if necessary, lights up a warning light arranged on the cabinet housing in a visible position in order to indicate that the activated carbon filter is desorbed or replaced got to.

In einer bevorzugten Ausführungsform sind die Filterpatronen auf einen in dem Schrankgehäuse angeordneten, an die Druckseite des Gebläses angeschlossenen Luftleittrichter abgedichtet aufgesetzt, der den einzelnen Filterpatronen zugeordnete Luftdurchlässe aufweist, die in die Filterpatrone führen. Um die erwähnte Kontrolle der Beladung des Aktivkohlefilters mit absorbierten Lösungsmitteln in einfacher Weise zu ermöglichen, kann eine der Filterpatronen als Prüf-Filterpatrone mit der Regeleinrichtung verbunden und über eine flüssigkeitsgefüllte Labyrinthdichtung höhenverstellbar und abgedichtet mit dem Luftleittrichter verbunden sein. Dabei kann die Prüf-Filterpatrone in dem Schrankgehäuse höhenbeweglich aufgehängt sein, wobei ihr Gewicht im unbeladenen Zustand austariert ist.In a preferred embodiment, the filter cartridges are placed in a sealed manner on an air guide funnel which is arranged in the cabinet housing and is connected to the pressure side of the blower and which has air passages assigned to the individual filter cartridges which lead into the filter cartridge. In order to enable the aforementioned control of the loading of the activated carbon filter with absorbed solvents in a simple manner, one of the filter cartridges can be connected to the control device as a test filter cartridge and height-adjustable and sealed connected to the air guide funnel via a liquid-filled labyrinth seal. The test filter cartridge can be suspended in the cabinet housing so that it can move in height, whereby its weight is balanced when unloaded.

Im übrigen ist es zweckmässig, wenn der Luftauslass des Schrankgehäuses unmittelbar durch die ins Freie mündenden Luftauslassöffnungen der Filterpatronen gebildet ist. Zur Erweiterung der Einsatzmöglichkeiten kann schliesslich die Anordnung noch derart getroffen sein, dass die Filterfläche nach aussen zu durch wenigstens einen lösbar an dem Gehäuse befestigten Luftsammeltrichter abgedeckt ist, der einen Saugstutzen zum Anschluss wenigstens eines Luftabsaugschlauches trägt.In addition, it is expedient if the air outlet of the cabinet housing is formed directly by the air outlet openings of the filter cartridges opening out into the open. Finally, to expand the possible uses, the arrangement can also be such that the filter surface is covered on the outside by at least one air collection funnel which is detachably fastened to the housing and carries a suction port for connecting at least one air suction hose.

In der Zeichnung ist ein Ausführungsbeispiel des Gegenstandes der Erfindung dargestellt. Es zeigen:

  • Fig. 1 ein mobiles Absauggerät gemäss der Erfindung, in einer Seitenansicht,
  • Fig. 2 das Absauggerät nach Fig. 1, in einer Ansicht von hinten,
  • Fig. 3 das Absauggerät nach Fig. 1, in einer Ansicht von vorne,
  • Fig. 4 das Absauggerät nach Fig. 1, in einer Draufsicht,
  • Fig. 5 die Prüf-Filterpatrone des Absauggerätes nach Fig. 1, in einer Seitenansicht,
  • Fig. 6 die Prüf-Filterpatrone nach Fig. 5, in einer anderen Seitenansicht,
  • Fig. 7 die Prüf-Filterpatrone nach Fig. 5, in einer Draufsicht, und
  • Fig. 8 und 9 einen Ausschnitt des Schrankgehäuses des Absauggerätes nach Fig. 1, entsprechend der Einzelheit «A der Fig. 4, in der Draufsicht bzw. in einer Seitenansicht und in einem anderen Massstab.
In the drawing, an embodiment of the object of the invention is shown. Show it:
  • 1 shows a mobile suction device according to the invention, in a side view,
  • 2 the suction device according to FIG. 1, in a view from behind,
  • 3, the suction device according to FIG. 1, in a view from the front,
  • 4 is a top view of the suction device according to FIG. 1,
  • 5 the test filter cartridge of the suction device according to FIG. 1, in a side view,
  • 6 shows the test filter cartridge according to FIG. 5, in a different side view,
  • Fig. 7, the test filter cartridge of FIG. 5, in a plan view, and
  • 8 and 9 a section of the cabinet housing of the suction device according to FIG. 1, corresponding to the detail “A of FIG. 4, in plan view or in a side view and on a different scale.

Das in der Zeichnung dargestellte mobile Absauggerät für Stäube, Farbnebel, Dämpfe und dergleichen weist ein geschlossenes, schrankartiges Blechgehäuse 1 auf, das an seiner Unterseite Rollen 2 trägt, mittels derer es auf dem Fussboden verfahrbar ist. Die Rollen 2 sind mit einem lösbaren Feststeller versehen. Die vordere Seitenwand 3 des Schrankgehäuses 1 ist in der insbesondere aus Fig. 3 und 4 ersichtlichen Weise giebel- oder dreiecksförmig vorspringend ausgebildet, so dass sich zwei einen Winkel von etwa 90° miteinander einschliessende Teilflächen 3a, 3b ergeben, die luftdurchlässig als Filterflächen ausgebildet sind. Zu diesem Zwecke sind an den Flächen 3a, 3b zwei Lagen Filterkassetten 4, 4a abgedichtet und lösbar mit dem Schrankgehäuse 1 verbunden. Die Filterkassetten 4, 4a bilden zwei Schwebstoffilter; sie können, sowie ihr maximal zulässiger Verschmutzungsgrad erreicht ist, von dem Schrankgehäuse 1 abgenommen und durch neue Filterkassetten ersetzt werden.The mobile suction device for dusts, paint mist, vapors and the like shown in the drawing has a closed, cabinet-like sheet metal housing 1, which carries rollers 2 on its underside, by means of which it can be moved on the floor. The rollers 2 are provided with a detachable lock. The front side wall 3 of the cabinet housing 1 is formed in the manner shown in FIGS. 3 and 4 in a protruding manner in a gable or triangular manner, so that two partial surfaces 3a, 3b enclosing an angle of approximately 90 ° result, which are air-permeable as filter surfaces . For this purpose, two layers of filter cassettes 4, 4a are sealed on the surfaces 3a, 3b and releasably connected to the cabinet housing 1. The filter cassettes 4, 4a form two suspended matter filters; they can be removed from the cabinet housing 1 and replaced with new filter cartridges as soon as their maximum permissible degree of contamination has been reached.

In dem Schrankgehäuse 1 ist ein Gebläse 5 angeordnet, dessen Gebläserad vom einem Elektromotor 6 angetrieben ist, der in dem Schrankgehäuse 1 vollständig gekapselt untergebracht ist. Die bei 7 angedeutete Kapselung ist über einen eigenen Zu- und Abluftkanal 8 mit der Atmosphäre verbunden, wobei der Zuluftkanal bei 9auf der der durch die Filterkassetten 4, 4a gebildeten Filterfläche gegenüberliegenden Rückseite des Schrankgehäuses 1 mündet, wie dies aus Fig. 2 zu ersehen ist.A fan 5 is arranged in the cabinet housing 1, the fan wheel of which is driven by an electric motor 6, which is housed in the cabinet housing 1 in a completely encapsulated manner. The encapsulation indicated at 7 is connected to the atmosphere via its own supply and exhaust air duct 8, the supply air duct opening at 9 on the rear side of the cabinet housing 1 opposite the filter surface formed by the filter cassettes 4, 4a, as can be seen from FIG. 2 .

Das Gebläse 5 erzeugt im Inneren des Schrankgehäuses 1 einen Unterdruck, unter dessen Wirkung durch die an der Vorderseite des Schrankgehäuses 1 angeordnete Filterfläche der Filterkassetten 4, 4a grossflächig verschmutzte Raumluft angesaugt wird, die nach der Reinigung im Umluftbetrieb über einen an der Oberseite des Schrankgehäuses 1 bei 10 vorhandenen Luftauslass wieder in den Raum zurückgefördert wird.The blower 5 generates a negative pressure in the interior of the cabinet housing 1, under the effect of which, through the filter surface of the filter cassettes 4, 4a arranged on the front of the cabinet housing 1, contaminated room air over a large area is sucked in, which is conveyed back into the room after cleaning in recirculation mode via an air outlet provided at the top of the cabinet housing 1 with 10.

Den Filterkassetten 4, 4a kann wenigstens ein in dem Schrankgehäuse angeordnetes weiteres Schwebstoff-Filter 11 nachgeschaltet sein, das auf der Druckseite des Gebläses 5 angeordnet ist. Dem Schwebstoff-Filter 11 ist dann seinerseits ein ebenfalls in dem Schrankgehäuse 1 angeordnetes Aktivkohlefilter 12 (vgl. Fig. 4 bis 7) nachgeschaltet.The filter cassettes 4, 4a can be followed by at least one further suspended matter filter 11 arranged in the cabinet housing, which is arranged on the pressure side of the blower 5. The suspended matter filter 11 is then in turn connected to an activated carbon filter 12 (see FIGS. 4 to 7) which is also arranged in the cabinet housing 1.

In den als Schwebstoff-Filter wirkenden Filterkassetten 4, 4a, bzw. den Schwebstoff-Filter 11 werden die in der verschmutzten Luft enthaltenen Staubanteile ausgefiltert, während das Aktivkohlefilter 12 zur Absorption von in der Luft enthaltenen Lösungsmitteldämpfen dient.In the filter cassettes 4, 4a, or the suspended matter filter 11, which act as a suspended matter filter, the dust components contained in the polluted air are filtered out, while the activated carbon filter 12 serves to absorb solvent vapors contained in the air.

Um die Absaugzone zu begrenzen und den jeweiligen örtlichen Gegebenheiten anpassen zu können, sind an dem Schrankgehäuse 1 zu beiden Seiten der Vorderwand 3 zwei verstellbare Abschirmwände 13 angelenkt, die um vertikale Gelenkachsen verschwenkt werden können. Zur Erhöhung der Absaugwirkung ist das Schrankgehäuse im Bereiche seiner Vorderwand 3 durch eine Bürstenleiste 14 gegen den Fussboden abgedichtet. Die Bürstenleiste 14 erstreckt sich auch über die Unterkante der Abschirmwände 13, so dass auch an dieser Stelle eine Abdichtung gegen den Fussboden vorhanden ist.In order to limit the suction zone and to be able to adapt to the respective local conditions, two adjustable shielding walls 13 are articulated on the cabinet housing 1 on both sides of the front wall 3 and can be pivoted about vertical joint axes. To increase the suction effect, the cabinet housing is sealed against the floor in the region of its front wall 3 by a brush strip 14. The brush strip 14 also extends over the lower edge of the shielding walls 13, so that a seal against the floor is also present at this point.

Das Aktivkohlefilter 12 ist durch eine Anzahl Filterpatronen 16 gebildet, die auf einen in dem Schrankgehäuse 1 angeordneten, an die Druckseite des Gebläses 5 angeschlossenen Luftleittrichter 17 abgedichtet aufgesetzt sind, der den einzelnen Filterpatronen 16 zugeordnete Luftdurchlässe 18 (Fig. 5) aufweist, die in die Filterpatronen münden.The activated carbon filter 12 is formed by a number of filter cartridges 16, which are placed in a sealed manner on an air guide funnel 17 which is arranged in the cabinet housing 1 and is connected to the pressure side of the blower 5 and which has air passages 18 (FIG. 5) assigned to the individual filter cartridges 16 the filter cartridges open.

Jede der Filterpatronen 16 weist einen zu dem jeweiligen Luftdurchlass 18 des Luftleittrichters 17 hin sich konisch verjüngenden, mit Aktivkohle gefüllten ringförmigen Filterraum 19 auf (vgl. bspw. Fig. 5), was einerseits lufttechnisch günstig ist, weil der Luftdurchsatz, wie er durch Pfeile 20 in Fig. 5 angedeutet ist, in zunehmendem Abstand von dem Luftdurchlass 18 zunimmt und andererseits sich hinsichtlich der Standzeit der Filterpatronen als günstig erwiesen hat. Ein dichtschliessendes oberes Kunststoffpolster 25 verhindert bei der durch Rütteln der Aktivkohle auftretenden Volumenverminderung das Auftreten von Kurzschlüssen beim Filtervorgang.Each of the filter cartridges 16 has an annular filter chamber 19 which tapers conically towards the respective air passage 18 of the air guide funnel 17 and is filled with activated carbon (cf., for example, FIG. 5), which is technically advantageous on the one hand because the air throughput, as indicated by arrows 20 is indicated in Fig. 5, increases with increasing distance from the air passage 18 and on the other hand has proven to be favorable with regard to the service life of the filter cartridges. A tightly closing upper plastic cushion 25 prevents the occurrence of short circuits during the filtering process in the event of a reduction in volume caused by shaking the activated carbon.

Der Verschmutzungs- und Beladungsgrad der einzelnen Filter 4, 4a, 11, 12 kann getrennt überwacht werden. Zu diesem Zwecke sind eigene Überwachungseinrichtungen vorgesehen, die anzeigen, wann die einzelnen Filter wegen Erreichen der zulässigen maximalen Verschmutzung oder Beladung ausgetauscht werden müssen.The degree of contamination and loading of the individual filters 4, 4a, 11, 12 can be monitored separately. For this purpose, dedicated monitoring devices are provided, which indicate when the individual filters have to be replaced due to the maximum contamination or loading being reached.

Zu diesem Zwecke sind den Filterkassetten 4, 4a bei 21 in Fig. 4 angedeutete Differenzdruck-Messgeräte zugeordnet, die den über den Filterkassetten auftretenden Druckabfall messen und über in dem Schrankgehäuse 1 verlaufende Messleitungen mit Anzeigegeräten (Fig. 3) an der Schrankgehäusevorderseite verbunden sind. Über die Differenzdruck-Messung erfolgt nicht nur eine Kontrolle des Verschmutzungsgrades der Filter, sondern gleichzeitig auch eine Überwachung der umgewälzten Luftmenge, die damit unter Kontrolle gehalten werden kann. Es können Umschalteinrichtungen vorgesehen sein, um die Filter einzeln kontrollieren zu können.For this purpose, the filter cassettes 4, 4a at 21 in FIG. 4 are assigned differential pressure measuring devices, which measure the pressure drop occurring across the filter cassettes and are connected to display devices (FIG. 3) on the front of the cabinet housing via measuring lines running in the cabinet housing 1. The differential pressure measurement not only controls the degree of contamination of the filter, but also monitors the amount of air circulated, which can be kept under control. Switching devices can be provided in order to be able to control the filters individually.

Zur Überwachung des Beladungszustandes des Aktivkohlefilters 12 ist die Anordnung derart getroffen, dass eine der nach Art von Filterkerzen gestalteten Filterpatronen 16 - nämlich die Filterpatrone 16a in Fig. 4 - als Prüf-Filterpatrone ausgebildet und mit einer Waage 24 verbunden ist, deren von aussen sichtbarer Zeiger 26 das Gewicht der Prüf-Filterpatrone 16a und damit die Schadstoffbeladung anzeigt.To monitor the loading condition of the activated carbon filter 12, the arrangement is such that one of the filter cartridges 16 designed in the manner of filter candles - namely the filter cartridge 16a in FIG. 4 - is designed as a test filter cartridge and is connected to a balance 24, the scale of which is visible from the outside Pointer 26 indicates the weight of the test filter cartridge 16a and thus the pollutant load.

Zu diesem Zwecke ist die Prüf-Filterpatrone 16a über eine flüssigkeitsgefüllte Labyrinthdichtung 27 begrenzt höhenverstellbar mit dem Luftleittrichter 17 verbunden. Sie ist in dem Schrankgehäuse 1 über ortsfest angeordnete Rollen 28 und über diese geleitete Seilzüge 29 höhenverstellbar aufgehängt, wobei die Seilzüge 29 endseitig mit Ausgleichsgewichten 30 verbunden sind, die das Gewicht der Prüf-Filterpatrone 16a im unbeladenen Zustand austarieren.For this purpose, the test filter cartridge 16a is connected to the air guide funnel 17 to a limited extent via a liquid-filled labyrinth seal 27. It is suspended in a height-adjustable manner in the cabinet housing 1 by means of rollers 28 which are arranged in a fixed manner and by means of the cables 29 guided thereon, the cables 29 being connected at the end to counterweights 30 which balance the weight of the test filter cartridge 16a in the unloaded state.

Die Filterpatronen 16, 16a weisen jeweils aus dem Filterraum 19 ins Freie mündende Luftauslassöffnungen bei 31 auf, die gemeinsam den Luftauslass 10 des Schrankgehäuses 1 bilden.The filter cartridges 16, 16a each have air outlet openings 31 that open out of the filter chamber 19 and together form the air outlet 10 of the cabinet housing 1.

Beispielsweise wenn von einer Montagegrube aus ein sogenannter Unterbodenschutz auf die Unterseite eines Kraftfahrzeuges aufgesprüht wird, besteht die Gefahr, dass sich in der Montagegrube eine unzulässig hohe Konzentration der Lösungsmitteldämpfe einstellt, die daher rührt, dass das spezifische Gewicht des Lösungsmittels höher ist als jenes der Luft. Um das Absauggerät auch für solche Fälle einsetzen zu können, kann die Filterfläche der Filterkassetten 4, 4a nach aussen zu durch einen vorgesetzten, etwa mittels Vorreibern an dem Schrankgehäuse 1 lösbar befestigten Luftsammeltrichter 50 abgedeckt sein, der einen Saugstutzen 51 zum Anschluss flexibler Luftabsaugschläuche trägt, die mit ihrem freien Ende in die Montagegrube gelegt werden, um die sich dort ansammelnden Lösungsmittel, Stäube u. dgl. abzusaugen. Die Luftsammeltrichter 50 mit den zugeordneten Saugstutzen 51 sind in den Fig. 3, 4 gestrichelt eingezeichnet.For example, if a so-called underbody protection is sprayed onto the underside of a motor vehicle from an assembly pit, there is a risk that an inadmissibly high concentration of the solvent vapors will result in the assembly pit, which is due to the fact that the specific weight of the solvent is higher than that of the air . In order to be able to use the suction device for such cases as well, the filter surface of the filter cassettes 4, 4a can be covered to the outside by an upstream air collection funnel 50, which is detachably fastened to the cabinet housing 1 by means of sashes and which carries a suction nozzle 51 for connecting flexible air suction hoses. which are placed with their free end in the assembly pit in order to collect the solvents, dusts and. suction. The air collection funnels 50 with the associated suction ports 51 are shown in dashed lines in FIGS. 3, 4.

Das Schrankgehäuse 1 ist derart aufgebaut, dass es in der aus den Fig. 8, 9 ersichtlichen Weise leistenartige Eckprofile 52 mit einer etwa C-förmigen Querschnittsgestalt aufweist, mit denen plattenartige Wandteile 53, 54 bei 55 verschraubt sind. In die C-förmigen Eckprofile 52 sind deren Innenumrissgestalt entsprechende Profilstücke 56 eingefügt, auf denen Konsolen od. dgl. des Schrankgehäuses 1 abgestützt sind, auf welchen ihrerseits die in dem Schrankgehäuse 1 untergebrachten Elemente befestigt und angeordnet sind. Die Profilstücke 56 sind mit den Eckprofilen 52 ebenfalls bei 55 verschraubt.The cabinet housing 1 is constructed in such a way that, in the manner shown in FIGS. 8, 9, it has strip-like corner profiles 52 with an approximately C-shaped cross-sectional shape, with which plate-like wall parts 53, 54 are screwed at 55. In the C-shaped corner profiles 52, their inner contour shape corresponding profile pieces 56 are inserted, on which brackets or the like. Of the cabinet housing 1 are supported, on which in turn the elements accommodated in the cabinet housing 1 are fastened and arranged. The profile pieces 56 are also screwed to the corner profiles 52 at 55.

Claims (12)

1. Mobile exhaust unit for dusts, paint mist, vapors and the like, comprising a movable housing which accommodates in its interior a blower (5) generating a vacuum and at least one activated charcoal filter (12) passed by an air flow, and which is provided on the wall side with a filter surface (at 4) through which contaminated room air can be drawn in over a large area, which air, after having been cleaned, can be returned into the room through an air outlet (10, 31) in the housing (1), characterized in that only one side of the cabinet-like housing (1) is designed as a filter area, that the activated charcoal filter (12) connected to the delivery side of the blower (5) is formed by a number of filter cartridges (16, 16a) to which air is supplied uniformly by the blower (5), and that the filter cartridges (16, 16a) comprise an annular filter chamber (19) which is filled with activated charcoal and which exhibits a cylindrical outer surface and an inner surface tapering outwardly towards the blower (5).
2. Exhaust unit according to claim 1, characterized in that a submicron particulate air filter (11) is arranged in the housing (1) between the blower (5) and the activated charcoal filter (12).
3. Exhaust unit according to claim 1 or 2, characterized in that the filter surface is formed by filter cassettes (4) which are connected with the housing (1) in sealed, but detachable relationship.
4. Exhaust unit according to any of the preceding claims, characterized in that adjustable screening walls (13) are arranged on the housing (1) in the area of the border of the filter surface (at 4) to limit the suction area.
5. Exhaust unit according to any of the preceding claims, characterized in that the filter cartridges (16, 16a) are fitted in sealed relationship upon an air guide funnel (17) arranged in the housing (5), connected to the delivery side of the blower (5), and provided with air passages (18) assigned to the individual filter cartridges (16, 16a) and leading into the filter cartridges (16, 16a).
6. Exhaust unit according to any of the preceding claims, characterized in that the air outlet (10) of the housing is formed directly by the air outlet openings (31) of the filter cartridges (16, 16a) which lead into the open air.
7. Exhaust unit according to any of the preceding claims, characterized in that the filter area is covered on its outside by at least one air collecting funnel (50) detachably mounted on the said housing (1) and carrying a suction pipe (51) for connection of at least one air exhaust house.
8. Exhaust unit according to any of the preceding claims, characterized in that the unit comprises devices (22, 24) for monitoring the degree of contamination or loading of the individual filters (4, 11), the said devices being arranged in the cabinet-line housing (1).
9. Exhaust unit according to claim 8, characterized in that a differential pressure measuring device (21) for determining the pressure drop occurring at the filter is assigned to at least one of the filters.
10. Exhaust unit according to claim 8, characterized in that a weighing device (24) comprising indicating means (26) is assigned at least to the activated charcoal filter (12).
11. Exhaust unit according to claim 10, characterized in that one of the filter cartridges serving as test cartridge (16a) is connected with the weighing device (24) and also with the air guide filter (17) in sealed and vertically adjustable relationship via a labyrinth seal (27) filled with a liquid.
12. Exhaust unit according to claim 17, characterized in that the test filter cartridge (16a) is suspended in the cabinet-like housing (1) for vertical movement and that its weight is counterbalanced in the unloaded condition.
EP82105088A 1981-06-13 1982-06-10 Movable extraction unit for dust, clouds of paint particles and the like Expired EP0067422B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82105088T ATE21635T1 (en) 1981-06-13 1982-06-10 MOBILE EXTRACTOR FOR DUST, PAINT MIST, FUMES AND THE LIKE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3123571 1981-06-13
DE19813123571 DE3123571A1 (en) 1981-06-13 1981-06-13 MOBILE EXTRACTION UNIT IN A RECIRCULATED PROCESS

Publications (3)

Publication Number Publication Date
EP0067422A2 EP0067422A2 (en) 1982-12-22
EP0067422A3 EP0067422A3 (en) 1983-03-30
EP0067422B1 true EP0067422B1 (en) 1986-08-27

Family

ID=6134682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105088A Expired EP0067422B1 (en) 1981-06-13 1982-06-10 Movable extraction unit for dust, clouds of paint particles and the like

Country Status (3)

Country Link
EP (1) EP0067422B1 (en)
AT (1) ATE21635T1 (en)
DE (2) DE3123571A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009038069A1 (en) * 2009-08-19 2011-02-24 Heinrich Stumpf suction
DE102011050915A1 (en) 2011-06-08 2012-12-13 Neufilter Gmbh A paper jelly filter module, method for making such a paper jelly filter module and paper jelly filter module wall from a plurality of such paper jelly filter modules

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1150789B (en) * 1957-10-30 1963-06-27 Georg Moessmer Dipl Ing Extraction device for stone masonry
US3747502A (en) * 1971-06-14 1973-07-24 J Williams Air pollution control system
SE384637B (en) * 1974-09-02 1976-05-17 J O Olsson VENTILATION UNIT WITH FLEXIBLE PIPELINE
DE2621172A1 (en) * 1976-05-11 1977-12-01 Gerhard Max Neumann Room air purifier unit - has double skinned shell with filter cover and perforated walls housing hollow conical fan support
SE7812139L (en) * 1978-11-24 1980-05-25 Svenska Flaektfabriken Ab UTSUGNINGSBOX
DE2934246A1 (en) * 1979-08-24 1981-03-26 Hartwig 74744 Ahorn Straub Activated carbon filter - with inlets near base periphery and outlets near top centre

Also Published As

Publication number Publication date
EP0067422A3 (en) 1983-03-30
DE3272875D1 (en) 1986-10-02
EP0067422A2 (en) 1982-12-22
ATE21635T1 (en) 1986-09-15
DE3123571A1 (en) 1982-12-30

Similar Documents

Publication Publication Date Title
EP0211383B1 (en) Filtering apparatus
DE112009003519T5 (en) Compact and modular robotic cleaning system
EP0909577B1 (en) Mobile appparatus for purifying polluted air
EP1935516B1 (en) Safety cabinet with a double-walled base tub
EP0067422B1 (en) Movable extraction unit for dust, clouds of paint particles and the like
EP0594216B1 (en) Filtering device for a gaseous medium
DE2813691A1 (en) Sepn. of droplets and particles from gas streams - using filter with combination of stages including filter mats and particulate filter beds in draw trays
EP0598246B1 (en) Working place with a working table and a suction appliance provided with a filter device
AT403014B (en) CLEANING DEVICE FOR FILTERS AND FILTER MATS
EP0594213B2 (en) Filtering device for a gaseous medium
DE102018124928A1 (en) Fume cupboard
DE4143113C2 (en) Device for cleaning the walls of towering structures, in particular cooling towers, chimneys, silos or the like
EP2072146A2 (en) Modular coating enclosure
DE4122699C2 (en) Workplace for the treatment of contaminated parts
DE4321869A1 (en) Device for the removal of fly settling on textile machines
DE19509432C2 (en) Suction device, in particular for dental technician workplaces
CH685233A5 (en) A device for catching the paint surplus during the spray painting.
DE2947334A1 (en) SUCTION BOX
DD156517A1 (en) DEVICE FOR CLEANING AIR
EP0503449A1 (en) Filter
DE4140490A1 (en) Enamel-glaze spray box - has excess spray collection unit which collects spray material free from water
DE19537396C1 (en) Filter band cleansing device for use in a cooling lubricant system
DE3438651A1 (en) Process and device for cleaning mechanical equipment, small parts and/or electronic switch units
DE2711255B1 (en) Street cleaning machine
EP0509052A1 (en) Device for cleaning mechanical appliances, small parts and/or electronic switch units.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19830629

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19860827

REF Corresponds to:

Ref document number: 21635

Country of ref document: AT

Date of ref document: 19860915

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19860831

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: HANKE, MARTIN

REF Corresponds to:

Ref document number: 3272875

Country of ref document: DE

Date of ref document: 19861002

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19870630

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19890526

Year of fee payment: 8

Ref country code: AT

Payment date: 19890526

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19890531

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890622

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890626

Year of fee payment: 8

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890630

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900610

Ref country code: AT

Effective date: 19900610

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19900630

Ref country code: CH

Effective date: 19900630

Ref country code: BE

Effective date: 19900630

BERE Be: lapsed

Owner name: HANKE MARTIN

Effective date: 19900630

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19910228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910816

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930302