EP1503033B1 - Apparatus for generating an air current in a sound-isolated dust remover - Google Patents

Apparatus for generating an air current in a sound-isolated dust remover Download PDF

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Publication number
EP1503033B1
EP1503033B1 EP04017141A EP04017141A EP1503033B1 EP 1503033 B1 EP1503033 B1 EP 1503033B1 EP 04017141 A EP04017141 A EP 04017141A EP 04017141 A EP04017141 A EP 04017141A EP 1503033 B1 EP1503033 B1 EP 1503033B1
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EP
European Patent Office
Prior art keywords
sound
housing
fan
sound absorber
fan housing
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 - Lifetime
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EP04017141A
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German (de)
French (fr)
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EP1503033A1 (en
Inventor
Reinhold Dipl.-Ing. Both
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CFT GmbH Compact Filter Technic
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CFT GmbH Compact Filter Technic
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Priority to PL04017141T priority Critical patent/PL1503033T3/en
Publication of EP1503033A1 publication Critical patent/EP1503033A1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/22—Equipment for preventing the formation of, or for removal of, dust
    • E21C35/223—Equipment associated with mining machines for sucking dust-laden air from the cutting area, with or without cleaning of the air
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/20—Drawing-off or depositing dust

Definitions

  • the invention relates to a device for generating an air flow in a wet or dry deduster, especially for use in underground mining and tunneling with a fan housing and the fan with drive and associated muffler.
  • a deduster is known in which the associated fan between the input and output side, that is arranged in the raw gas stream.
  • the fan including its fan housing is quasi soundproof, but exposed to the water droplets, the water and dust droplets and the dust grains, quite apart from the fact that it is centrally located in this raw gas stream, so that repair work and the like are considerably more difficult.
  • the fan with its fan ensures that the raw gas flow through the deduster is pulled so that it can be freed from the dust particles, either by adding water, or in dry filters in that the air flow through appropriate Dust-retaining wipes is passed.
  • devices ie fans are known, which are arranged outside of the deduster, with which, however, also the raw gas flow is selectively passed through the deduster.
  • the environmental impact silencer When used in conjunction with dedusters and in other applications, it is necessary to use to reduce the environmental impact silencer. This can, as in DE 198 53 190 A1 happen that the entire fan is arranged with its fan housing in a large room, so that the fan noise can penetrate only conditionally to the outside.
  • these mufflers are so associated with the fan housing, that the sonic load of the fan wheel can escape from the fan housing uninsulated.
  • the invention is therefore based on the object to provide an intended for use in underground dedusters, powerful and small-sized, soundproof fan, which is also used in other areas.
  • the muffler is designed as the fan housing upstream inlet muffler and downstream outlet muffler that the fan housing additionally has soundproofing and that the outlet muffler upstream of a power distribution, which distributes the fan housing leaving clean the distributed through the multiple channels Outlet silencer is formed feeding, the flow channels are secured all around sound insulation walls.
  • both sides of the fan housing are protected by silencers and additionally the fan housing itself, so that virtually no sound or only a small amount of noise can escape into the environment.
  • the outlet silencer is increased so that while reducing the flow velocity, the insulating areas or insulating parts of the silencer are particularly effective.
  • the power distributor ensures that the clean gases leaving the fan housing strike the insulation surfaces as optimally distributed as possible, so that soundproofing can be achieved.
  • the single clean gas flow which leaves the fan housing and thus the fan wheel, is thus guided through a relatively small diameter flow channel, which has all-round sound insulation walls, so that a total of a very large sound-insulating surface is available, much larger than conventional outlet silencers.
  • the number of flow channels created may be appropriate to the circumstances, e.g. be adapted in particular to the volume of the clean gas to be delivered. It is also conceivable to provide subdivisions in the power distributor and in the outlet silencer, so that always a specific amount of flow channels is always used or just for large clean gas volumes all existing flow channels.
  • the power distributor is at the same time designed to act as a compensation chamber, in which the clean gas leading baffles are arranged and that it has its own soundproofing elements.
  • the clean gas in the power distributor is first of all reduced in its speed, quite simply because a correspondingly enlarged space is made available and beyond that then guided so that the clean gas on the sound attenuation targeted strokes over while the targeted insulation can occur. It is understood that this power distribution is required especially when the outlet or when the entire outlet silencer is increased in volume, the end cross-section of the power distributor and the outlet silencer are identical.
  • a further embodiment provides that the power distributor and the associated outlet silencer have an up to the footprint of the associated deduster reaching damper housing.
  • the above-mentioned insulating effect is achieved in the flow channels, in particular when the sound insulation walls have spaces filled with rock wool filling.
  • This can be specifically filled a certain amount of rock wool in the gap, so as to ensure the targeted insulation of the sound.
  • the rock wool filling has a specific density or that the density can be adjusted by an appropriate amount of rock wool filling or is also set differently, in order to be able to set the insulating effect to the existing sound safely.
  • perforated plates provide a sufficiently large area, which allow a direct contact between rock wool filling and clean gas or sound.
  • the rock wool filling is formed from columnar components, which are designed to be inserted into the interstices.
  • These columnar components are made of rock wool of a certain density, being so stable that they can be handled well. Due to their stable construction or their stable condition, they can be inserted into the interstices without the need for further aids. Due to their shape and the shape of the interstices, they are stored and held there so that they can not slip and are always arranged with their sound-absorbing surface to the passing clean gas out. If there is any influence on the rock wool filling, the columnar components can be replaced by new ones, whereby either only a part of the rock wool filling is replaced or also the entire rock wool filling of such a discharge silencer or other silencer.
  • At least one side wall of the damper housing is made detachable or hinged, so that the side wall can be detached from the rest of the damper housing to either insert the columnar components first or to exchange them for others, if this is due to Overload or other problems is necessary.
  • the actual fan housing is designed soundproofed.
  • the fan-housing associated columnar components of the sound-insulating walls are arranged parallel to the air flow direction, wherein in the middle of the fan wheel metal dampers are provided. Because metal dampers are arranged in the region of the fan wheel, the columnar components consisting of rock wool can not be overstressed. Rather, it is even possible to make an additional or simplified fixation of the columnar components in the region of the soundproof walls of the fan housing with the help of the proposed metal damper.
  • the plates provided to the inside are designed as perforated plates, so that here too the necessary contact between the flowing clean gas and the rock wool is achieved or can be ensured.
  • the metal damper on the columnar components additionally fixedly connected to the housing wall or secured and fixed on the same time holding the columnar components perforated plates. So here is the other possibility addressed by the metal damper can perform a dual function. In general, it will be the case that the metal dampers are made of correspondingly hard material rather for additional fixation of the columnar components, as vice versa. But as I said, the reverse function is possible.
  • the noise mainly also arise from the fact that the air flow through a narrow gap between the metal dampers and the individual wings of the fan is pressed through. Another sound load naturally arises via the drive and the rotating blades of the fan wheel. A large part of this load is, as mentioned, adsorbed by the arranged parallel to the air flow columnar components of rock wool and thus rendered harmless, this is further improved by the fan housing from the core tube-shaped and then a rectangular housing shell with an intermediate pitted stone wool filling is dammed.
  • the special design of the fan housing or better of the housing shell makes it possible to specifically arrange further rock wool so that the desired sound insulation is improved. In any case, this enlargement of the fan housing is usually harmless, because the dimensions of the associated deduster or other machine parts is predetermined so that the magnification is harmless here on the fan housing.
  • the individual fan wheels supplied clean gas flow passes through an inlet silencer, which may be connected to the fan housing, which also assumes a dual function insofar as the fan housing in the air flow upstream inlet exhaust extended to approximately standing surface of the deduster and running a compensating space forming is.
  • an enlargement of the flow cross-section is thus predetermined, and this entire area of the intake silencer is protected by sound insulating walls, so that hereby a corresponding reassurance can be achieved.
  • the size of this inlet silencer can be reduced due to the described embodiment over the prior art, so that the entire length of the fan housing or, more specifically, the operated device can be limited.
  • the possibility of a compensating piece that is designed to be flexible, and a transition piece to the dust extractor to ensure additional sound insulation so that the described inlet silencer may possibly even completely eliminated.
  • the invention is characterized in that a device is provided, i. a fan that is designed and fitted with silencers that it can be used in underground mining but also in other areas to improve together with a dust extractor or similar aggregates cleaning ability for dust-laden LOSSströme or to the industry a fan or specify a device for generating an air flow, which can be made compact and stable and that allows for close to 100% sound insulation high performance by, for example, one or more fans in a row arranges and interconnects.
  • the inlet side of the fan is soundproofed, but above all, the outlet side, in which case the outlet silencer is not only increased in terms of volume, but also with respect to its soundproofing effect. This can be achieved by the multiple flow channels, which can be secured all around by sound insulation or sound insulation. At the end or when flowing out of the purified air, the sound pressure is brought to virtually zero.
  • the fan unit 1 shown in FIG. 1 is one which can be assigned to a dust collector 2 which is not shown in detail here. Accordingly, the deduster is connected to the fan housing 3 via a transition piece 38 and a flexible compensation piece 39. It should be mentioned here that this transition piece is provided with an insulation 40 made of rock wool, this transition piece 38 can also take over the function of the further explained in more detail inlet silencer 6.
  • the fan housing 3 has the fan 4 and the drive 5, wherein the drive is arranged according to Figure 5 on a fan block 9.
  • two fan housing 3, 8 are arranged one behind the other and equipped with fan wheels 4, which provide an approximately doubled performance.
  • a power distributor 10 connects, which is the connecting part to the outlet silencer 7.
  • the power distributor 10 has all the sound insulation elements 16 and is formed pulled down far, when used with a deduster 2 to approxemdemd towards the sole.
  • the current distributor 10 is equipped with a flow cross-section which is larger than the flow cross-section of the fan housing 3, 8, so that a so-called equalization space 20 is created by a calming of the clean gas flow.
  • the partial flows are directed by the baffles 21, that the clean gas flow to each of the reproduced in Figure 1 flow channels 11, 12, 13 is passed.
  • the flow-through channels 11, 12, 13 are completely covered by sound-absorbing elements 15, which can be seen in particular from FIG. 2, so that the actual flow-through channels 11, 12, 13 are completely protected against the environment.
  • the clean gas flowing through in the air flow direction 22 is conducted through the flow channels 11, 12, 13 so uniformly that the sound insulation elements 15 can be fully effective.
  • the individual sound-absorbing wall 24 of the damper housing 23 consists of the outer panel 29, the perforated plate 28 arranged towards the interior 27 and the rock wool filling 25 filling this gap 26. As shown in FIG. 2, this results in all-round insulation for each duct, the side wall or a wall the side walls 31 is designed to be foldable or can be opened, so that you can easily bring the rock wool filling 25.
  • the rock wool filling 25 is introduced in the form of columnar components 30.
  • Such a component 30 is shown in FIG. 3, it being apparent here that the latter large columnar components 30 are inserted from the side wall 31 forth and are arranged between outer panel 29 and perforated plate 28.
  • Figure 4 and Figure 5 show cross sections of the fan housing 3, wherein according to Figure 4, the circular cross section is also reflected on the wall, here between the perforated plate 28 and outer panel 29 also find the visible from Figure 3 columnar components 30 use.
  • the housing wall 34 is actually represented by the outer panel 29, but ultimately of the overall structure, which is additionally stabilized by the soundproofing elements 17 and the columnar components 30.
  • Figure 5 shows the elevated drive 5 for the fan 4, the figure 4 can be seen.
  • the housing wall 34 is also shown in the form of a double wall, namely consisting of perforated plate 28 and outer panel 29, then additionally a housing shell 35 is provided which receives an additional Steinwoll Anlagenllung 36, which practically the cavity between the square housing shell 35 and the circular housing wall 34 fills out.
  • the individual figures 1 to 5 illustrate that virtually the entire housing of the fan unit 1 is protected by sound insulation elements 15, 16, 17, 18, this also with respect to the flow channels 11, 12 and 13. This results in an advantageous insulation effect, which leads to Such a dust extractor 2, for example, associated fan unit can be used as such without endangering the environment or adverse effect on the environment. Due to the compact design, the total length of the fan unit 1 within very narrow limits kept well below 10 meters, usually even 5 meters. As a result, fan units of this kind can be advantageously used, in particular in cramped conditions, so that these workplaces, which are frequently affected by noise, can thus be made substantially more ergonomic.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrostatic Separation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Prevention Of Fouling (AREA)
  • Ventilation (AREA)

Abstract

The tunnel ventilator (1) draws air from a dust removal device (2). Dust laden air flows through a pipe (38) with rock wool sound insulation (40). It flows through a bellows connection (39) into an enlarged chamber (6) with sound insulation (18). There are two fans (4) in series surrounded by metallic dampers (33) in fan housings (3,8). There are sound damping elements (17) on either side of each fan. There is a diffuser (10) with sound insulation downstream of the fans leading to an insulated (15) sound-damping section with parallel channels (11-13).

Description

Die Erfindung betrifft ein Gerät zur Erzeugung eines Luftstromes in einem Naß- oder Trockenentstauber, insbesondere für den Einsatz im untertägigen Berg- und Tunnelbau mit einem Lüftergehäuse und dem Lüfterrad mit Antrieb sowie zugeordnetem Schalldämpfer.The invention relates to a device for generating an air flow in a wet or dry deduster, especially for use in underground mining and tunneling with a fan housing and the fan with drive and associated muffler.

Aus der DE 198 53 190 A1 ist ein Entstauber bekannt, bei dem der zugeordnete Lüfter zwischen Eingangs- und Ausgangsseite, also im Rohgasstrom angeordnet ist. Somit ist der Lüfter einschließlich seines Lüftergehäuses quasi schallgedämmt, dafür aber den Wassertröpfchen, den Wasser- und Staubtröpfchen sowie den Staubkörnern ausgesetzt, ganz davon abgesehen, dass er mittig in diesem Rohgasstrom angeordnet ist, also dass auch Reparaturarbeiten und ähnliches erheblich erschwert sind. Bei dieser Lösung sorgt der Lüfter mit seinem Lüfterrad dafür, dass der Rohgasstrom durch den Entstauber so hindurchgezogen wird, dass er von den Staubpartikeln befreit werden kann, sei es durch Zusatz von Wasser, sei es bei Trockenfiltern dadurch, dass der Luftstrom durch entsprechende, den Staub zurückhaltende Tücher hindurchgeführt wird. Darüber hinaus sind auch Geräte, also Lüfter bekannt, die außerhalb des Entstaubers angeordnet sind, mit denen aber ebenfalls der Rohgasstrom gezielt durch den Entstauber hindurchgeführt wird. Beim Einsatz in Zusammenhang mit Entstaubern aber auch bei anderen Einsätzen ist es erforderlich, zur Verringerung der Umweltbelastung Schalldämpfer einzusetzen. Dies kann, wie bei der DE 198 53 190 A1 dadurch geschehen, dass der gesamte Lüfter mit seinem Lüftergehäuse in einem großen Raum angeordnet ist, sodass die Lüftergeräusche nur bedingt nach außen dringen können. In der Regel sind aber diese Schalldämpfer so dem Lüftergehäuse zugeordnet, dass die Schallbelastung des Lüfterrades aus dem Lüftergehäuse ungedämmt herausdringen kann. Nachteilig dabei ist ein großer Aufwand an Baumasse für den Schalldämpfer und die Notwendigkeit, das Lüftergehäuse sowohl eingangsseitig wie auch ausgangsseitig schallmäßig zu dämmen, um eine wirksame Schalldämmung sicherzustellen. Aus der DE 24 43 858 A ist ein Entstauber bekannt, bei dem der Lüfterstation ein Drallstromerzeuger vor- und nachgeschaltet ist, wobei durch eingesprühtes Wasser und die erzeugte Drallströmung ein Schalldämmeffekt bewirkt werden soll. Abgesehen davon, dass dieser Entstauber nur als Nassentstauber verwirklicht werden kann, genügt der erzielte "Dämmeffekt" den geltenden Schalldämmungsvorschriften bei weitem nicht. Bei dem in der US-A-4,348,057 beschriebene Entstauber ist eine endseitig des Entstaubers angeordnete Schalldämmeinrichtung vorgesehen, die als zylindrisches Rohr ausgebildet ist, das über Zwischenwände unterteilt ist. Diese Zwischenwände sind zwecks Schalldämmung mit Polyurethan (einer dünnen Schicht) versehen. Somit ist nur am Entstauberausgang ein Schalldämpfer vorgesehen, die übrigen Teile des Entstaubers bleiben ungedämmt und ein Schalldämmeffekt ist wegen der mehr oder weniger zufälligen Beaufschlagung der Schalldämpferteile sehr ungewiss.From DE 198 53 190 A1 discloses a deduster is known in which the associated fan between the input and output side, that is arranged in the raw gas stream. Thus, the fan including its fan housing is quasi soundproof, but exposed to the water droplets, the water and dust droplets and the dust grains, quite apart from the fact that it is centrally located in this raw gas stream, so that repair work and the like are considerably more difficult. In this solution, the fan with its fan ensures that the raw gas flow through the deduster is pulled so that it can be freed from the dust particles, either by adding water, or in dry filters in that the air flow through appropriate Dust-retaining wipes is passed. In addition, devices, ie fans are known, which are arranged outside of the deduster, with which, however, also the raw gas flow is selectively passed through the deduster. When used in conjunction with dedusters and in other applications, it is necessary to use to reduce the environmental impact silencer. This can, as in DE 198 53 190 A1 happen that the entire fan is arranged with its fan housing in a large room, so that the fan noise can penetrate only conditionally to the outside. As a rule, however, these mufflers are so associated with the fan housing, that the sonic load of the fan wheel can escape from the fan housing uninsulated. The disadvantage here is a great deal of building mass for the silencer and the need to insulate the fan housing both the input side and the output side sound to ensure effective sound insulation. From DE 24 43 858 A a dust extractor is known in which the fan station upstream and downstream of a swirl current generator, which is to be effected by sprayed water and the swirl flow generated a sound insulation effect. Apart from the fact that this dust extractor can only be realized as a wet deduster, the achieved "insulation effect" does not meet the applicable sound insulation regulations by far. In the dust extractor described in US-A-4,348,057 a Schalldämmeinrichtung arranged end of the deduster is provided, which is formed as a cylindrical tube which is divided over intermediate walls. These partition walls are provided with polyurethane (a thin layer) for sound insulation. Thus, a silencer is provided only at the deduster output, the remaining parts of the deduster remain uninsulated and a sound insulation effect is very uncertain because of the more or less random application of the silencer parts.

Der Erfindung liegt daher die Aufgabe zugrunde, einen für den Einsatz an Untertageentstaubern vorgesehenen, leistungsfähigen und klein bauenden, schallgeschützten Lüfter zu schaffen, der darüber hinaus auch in anderen Bereichen einsetzbar ist.The invention is therefore based on the object to provide an intended for use in underground dedusters, powerful and small-sized, soundproof fan, which is also used in other areas.

Die Aufgabe wird gemäß der Erfindung dadurch gelöst, dass der Schalldämpfer als dem Lüftergehäuse vorgeordneter Einlaufschalldämpfer sowie nachgeordneter Auslaufschalldämpfer ausgebildet ist, dass das Lüftergehäuse zusätzlich über Schalldämmelemente verfügt und dass dem Auslaufschalldämpfer ein Stromverteiler vorgeordnet ist, der die das Lüftergehäuse verlassenden Reingase verteilt den mehreren Durchströmkanälen des Auslaufschalldämpfers zuführend ausgebildet ist, wobei die Durchströmkanäle rundum über Schalldämmwände gesichert sind.The object is achieved according to the invention in that the muffler is designed as the fan housing upstream inlet muffler and downstream outlet muffler that the fan housing additionally has soundproofing and that the outlet muffler upstream of a power distribution, which distributes the fan housing leaving clean the distributed through the multiple channels Outlet silencer is formed feeding, the flow channels are secured all around sound insulation walls.

Diese verschiedenen Maßnahmen führen dazu, dass die Schalldämmung als solche auf den unmittelbaren Bereich um das Lüftergehäuse herum zusammengezogen ist, sodass der Platzaufwand für einen derartigen Lüfter, der dann einem Entstauber oder anderen Geräten zugeordnet wird, gering gehalten werden kann. Zunächst einmal werden beide Seiten des Lüftergehäuses durch Schalldämpfer abgesichert und zusätzlich das Lüftergehäuse selbst, sodass in die Umgebung praktisch kein Schall oder nur noch eine geringe Menge Lärm austreten kann. Darüber hinaus wird der Auslaufschalldämpfer so vergrößert, dass unter gleichzeitiger Reduzierung der Strömgeschwindigkeit die Dämmbereiche bzw. Dämmteile des Schalldämpfers besonders gut wirksam werden. Der Stromverteiler sorgt dafür, dass die das Lüftergehäuse verlassenden Reingase möglichst optimal verteilt an den Dämmflächen vorbei streichen, sodass es zu der gezielten Schalldämmung kommen kann. Der einzelne Reingasstrom, der das Lüftergehäuse und damit das Lüfterrad verlässt, wird somit durch einen verhältnismäßig kleinen Durchmesser aufweisenden Durchströmkanal geführt, der rundum Schalldämmwände aufweist, sodass insgesamt gesehen eine sehr große schalldämmende Fläche zur Verfügung steht, viel größer, als bei herkömmlichen Auslaufschalldämpfern. Die Zahl der geschaffenen Durchströmkanäle kann den Gegebenheiten, d.h. insbesondere dem Volumen des zu fördernden Reingases angepasst werden. Denkbar ist es auch, Unterteilungen im Stromverteiler und im Auslaufschalldämpfer vorzusehen, sodass immer gezielt eine bestimmte Menge an Durchströmkanälen benutzt wird oder eben bei großen Reingasmengen alle vorhandenen Durchströmkanäle.These various measures mean that the sound insulation as such is contracted to the immediate area around the fan housing, so that the space required for such a fan, which is then assigned to a deduster or other devices, can be kept low. First of all, both sides of the fan housing are protected by silencers and additionally the fan housing itself, so that virtually no sound or only a small amount of noise can escape into the environment. In addition, the outlet silencer is increased so that while reducing the flow velocity, the insulating areas or insulating parts of the silencer are particularly effective. The power distributor ensures that the clean gases leaving the fan housing strike the insulation surfaces as optimally distributed as possible, so that soundproofing can be achieved. The single clean gas flow, which leaves the fan housing and thus the fan wheel, is thus guided through a relatively small diameter flow channel, which has all-round sound insulation walls, so that a total of a very large sound-insulating surface is available, much larger than conventional outlet silencers. The number of flow channels created may be appropriate to the circumstances, e.g. be adapted in particular to the volume of the clean gas to be delivered. It is also conceivable to provide subdivisions in the power distributor and in the outlet silencer, so that always a specific amount of flow channels is always used or just for large clean gas volumes all existing flow channels.

Bei einer zweckmäßigen Ausführung der Erfindung ist vorgesehen, dass der Stromverteiler zugleich als Ausgleichsraum wirkend ausgebildet ist, in dem das Reingas führende Leitbleche angeordnet sind und dass er über eigene Schalldämmelemente verfügt. Somit wird das Reingas in dem Stromverteiler zunächst einmal in seiner Geschwindigkeit reduziert, ganz einfach, weil ein entsprechend vergrößerter Raum zur Verfügung gestellt wird und darüber hinaus dann so geführt, dass das Reingas an den Schalldämmelementen gezielt vorbei streicht und dabei die gezielte Dämmung eintreten kann. Es versteht sich, dass dieser Stromverteiler vor allem dann erforderlich ist, wenn der Austritt oder wenn der gesamte Auslaufschalldämpfer volumenmäßig vergrößert ist, wobei der Endquerschnitt des Stromverteilers und der des Auslaufschalldämpfers identisch sind.In an expedient embodiment of the invention, it is provided that the power distributor is at the same time designed to act as a compensation chamber, in which the clean gas leading baffles are arranged and that it has its own soundproofing elements. Thus, the clean gas in the power distributor is first of all reduced in its speed, quite simply because a correspondingly enlarged space is made available and beyond that then guided so that the clean gas on the sound attenuation targeted strokes over while the targeted insulation can occur. It is understood that this power distribution is required especially when the outlet or when the entire outlet silencer is increased in volume, the end cross-section of the power distributor and the outlet silencer are identical.

Eine weitere Ausführung sieht vor, dass der Stromverteiler und der zugeordnete Auslaufschalldämpfer über ein bis zur Standfläche des zugeordneten Entstaubers reichendes Dämpfergehäuse verfügen. Hier ist die Möglichkeit geschaffen, die Querschnitte vom Stromverteiler und Auslaufschalldämpfer gezielt zu vergrößern, ohne dass dadurch zusätzlicher Platzaufwand entsteht. Vielmehr nutzt man die vorhandenen Räume optimal aus und kann damit einen Auslaufschalldämpfer vorgeben, der mit der notwendigen Sicherheit den Erfolg erbringt, der von einem solchen Auslaufschalldämpfer erwartet wird.A further embodiment provides that the power distributor and the associated outlet silencer have an up to the footprint of the associated deduster reaching damper housing. Here is the opportunity created to increase the cross-sections of the power distribution and outlet silencer targeted without additional space required. Rather, one uses the existing spaces optimally and can thus pretend an outlet silencer, which provides the necessary security the success that is expected of such a discharge muffler.

Die erwähnte Dämmwirkung erreicht man in den Durchströmkanälen insbesondere dann, wenn die Schalldämmwände mit einer Steinwollefüllung versehene Zwischenräume aufweisen. Damit kann gezielt eine bestimmte Menge an Steinwolle in den Zwischenraum eingefüllt werden, um so die gezielte Dämmung des Schalls sicherzustellen. Denkbar ist es dabei, dass die Steinwollefüllung eine gezielte Dichte aufweist oder aber die Dichte durch entsprechende Menge an Steinwollefüllung anpassbar ist bzw. auch unterschiedlich eingestellt wird, um so sicher die Dämmwirkung auf den vorhandenen Schall einstellen zu können.The above-mentioned insulating effect is achieved in the flow channels, in particular when the sound insulation walls have spaces filled with rock wool filling. This can be specifically filled a certain amount of rock wool in the gap, so as to ensure the targeted insulation of the sound. It is conceivable that the rock wool filling has a specific density or that the density can be adjusted by an appropriate amount of rock wool filling or is also set differently, in order to be able to set the insulating effect to the existing sound safely.

Um die Steinwollefüllung direkt mit dem Reingas und damit mit dem Schall in Verbindung zu bringen, ist vorgesehen, die Steinwollefüllung der Schalldämmwände zum Innenraum hin über Lochbleche zu fixieren. Die Lochbleche geben eine genügend große Fläche vor, die einen direkten Kontakt zwischen Steinwollefüllung und Reingas bzw. Schall ermöglichen.In order to connect the rock wool filling directly with the clean gas and thus with the sound, it is provided to fix the rock wool filling the sound insulation walls to the interior through perforated plates. The perforated plates provide a sufficiently large area, which allow a direct contact between rock wool filling and clean gas or sound.

Die Montage aber auch die Wartung wird dadurch erleichtert, dass nach der Erfindung die Steinwollefüllung aus säulenförmigen Bauteilen gebildet ist, die in die Zwischenräume einschiebbar ausgebildet sind. Diese säulenförmigen Bauteile bestehen aus Steinwolle einer bestimmten Dichte, wobei sie so stabil sind, dass sie gut gehandhabt werden können. Sie können aufgrund ihrer stabilen Bauweise bzw. ihres stabilen Zustandes in die Zwischenräume eingeschoben werden, ohne dass es weiterer Hilfsmittel bedarf. Aufgrund ihrer Formgebung und auch der Formgebung der Zwischenräume werden sie dort so gelagert und gehalten, dass sie nicht verrutschen können und immer mit ihrer schalldämmenden Fläche zum vorbei streichenden Reingas hin angeordnet sind. Kommt es zu irgendwelchen Beeinflussungen der Steinwollefüllung, so können die säulenförmigen Bauteile durch neue ersetzt werden, wobei entweder nur ein Teil der Steinwollefüllung ausgetauscht wird oder aber auch die gesamte Steinwollefüllung eines solchen Auslaufschalldämpfers oder anderen Schalldämpfers.The assembly but also the maintenance is facilitated by the fact that according to the invention, the rock wool filling is formed from columnar components, which are designed to be inserted into the interstices. These columnar components are made of rock wool of a certain density, being so stable that they can be handled well. Due to their stable construction or their stable condition, they can be inserted into the interstices without the need for further aids. Due to their shape and the shape of the interstices, they are stored and held there so that they can not slip and are always arranged with their sound-absorbing surface to the passing clean gas out. If there is any influence on the rock wool filling, the columnar components can be replaced by new ones, whereby either only a part of the rock wool filling is replaced or also the entire rock wool filling of such a discharge silencer or other silencer.

Weiter wird zur Erleichterung der Montage und Demontage vorgeschlagen, dass mindestens eine Seitenwand des Dämpfergehäuses lösbar oder klappbar ausgeführt ist, sodass die Seitenwand vom übrigen Dämpfergehäuse gelöst werden kann, um entweder die säulenförmigen Bauteile erstmals einzuschieben oder aber sie gegen andere auszutauschen, wenn dies aufgrund von Überlastung oder sonst welchen Problemen notwendig ist.Further, it is proposed to facilitate assembly and disassembly that at least one side wall of the damper housing is made detachable or hinged, so that the side wall can be detached from the rest of the damper housing to either insert the columnar components first or to exchange them for others, if this is due to Overload or other problems is necessary.

Weiter vom ist bereits erläutert worden, dass auch das eigentliche Lüftergehäuse schallgedämmt ausgeführt ist. Hierzu ist vorgesehen, dass die dem Lüftergehäuse zugeordneten säulenförmigen Bauteile der Schalldämmwände parallel zur Luftströmrichtung angeordnet sind, wobei mittig im Bereich des Lüfterrades Metalldämpfer vorgesehen sind. Dadurch, dass im Bereich des Lüfterrades Metalldämpfer angeordnet sind, können die aus Steinwolle bestehenden säulenförmigen Bauteile nicht überbeansprucht werden. Vielmehr ist es sogar möglich, mit Hilfe der vorgesehenen Metalldämpfer eine zusätzliche oder vereinfachte Fixierung der säulenförmigen Bauteile im Bereich der Schalldämmwände des Lüftergehäuses vorzunehmen. Die zur Innenseite hin vorgesehenen Bleche sind als Lochbleche ausgebildet, sodass auch hier der notwendige Kontakt zwischen dem durchströmenden Reingas und der Steinwolle erreicht wird bzw. sichergestellt werden kann.Next from has already been explained that the actual fan housing is designed soundproofed. For this purpose, it is provided that the fan-housing associated columnar components of the sound-insulating walls are arranged parallel to the air flow direction, wherein in the middle of the fan wheel metal dampers are provided. Because metal dampers are arranged in the region of the fan wheel, the columnar components consisting of rock wool can not be overstressed. Rather, it is even possible to make an additional or simplified fixation of the columnar components in the region of the soundproof walls of the fan housing with the help of the proposed metal damper. The plates provided to the inside are designed as perforated plates, so that here too the necessary contact between the flowing clean gas and the rock wool is achieved or can be ensured.

Denkbar ist es auch, dass die Metalldämpfer über die säulenförmigen Bauteile zusätzlich fixiert mit der Gehäusewand verbunden oder über die zugleich die säulenförmigen Bauteile haltenden Lochbleche gesichert und fixiert sind. Hier ist also auch die andere Möglichkeit angesprochen, durch die die Metalldämpfer eine Doppelfunktion wahrnehmen können. In der Regel wird es so sein, dass die Metalldämpfer aus entsprechend hartem Material eher zur zusätzlichen Fixierung der säulenförmigen Bauteile eingesetzt werden, als umgekehrt. Möglich ist aber wie gesagt auch die umgekehrte Funktion.It is also conceivable that the metal damper on the columnar components additionally fixedly connected to the housing wall or secured and fixed on the same time holding the columnar components perforated plates. So here is the other possibility addressed by the metal damper can perform a dual function. In general, it will be the case that the metal dampers are made of correspondingly hard material rather for additional fixation of the columnar components, as vice versa. But as I said, the reverse function is possible.

Im Lüftergehäuse ist der Lüfter bzw. das Lüfterrad angeordnet, wobei die Geräusche vor allem auch dadurch entstehen, dass der Luftstrom durch einen engen Spalt zwischen den Metalldämpfern und den einzelnen Flügeln des Lüfterrades hindurch gepresst wird. Eine weitere Schallbelastung entsteht naturgemäß über den Antrieb und die sich drehenden Flügel des Lüfterrades. Ein großer Teil dieser Belastung wird, wie erwähnt, durch die parallel zur Luftströmrichtung angeordneten säulenförmigen Bauteile aus Steinwolle adsorbiert und damit unschädlich gemacht, wobei dies noch dadurch verbessert wird, dass das Lüftergehäuse vom Kern her rohrförmig ausgebildet und dann über einen rechteckigen Gehäusemantel mit einer zwischen gefügten Steinwollefüllung abgedämmt ist. Die besondere Ausbildung des Lüftergehäuses oder besser des Gehäusemantels ermöglicht es, weitere Steinwolle gezielt so anzuordnen, dass die gewünschte Schalldämmung verbessert wird. Jedenfalls ist diese Vergrößerung des Lüftergehäuses in der Regel unschädlich, weil die Abmessungen des zugeordneten Entstaubers oder anderer Maschinenteile so vorgegeben ist, dass die Vergrößerung hier am Lüftergehäuse unschädlich ist.In the fan housing of the fan or the fan wheel is arranged, the noise mainly also arise from the fact that the air flow through a narrow gap between the metal dampers and the individual wings of the fan is pressed through. Another sound load naturally arises via the drive and the rotating blades of the fan wheel. A large part of this load is, as mentioned, adsorbed by the arranged parallel to the air flow columnar components of rock wool and thus rendered harmless, this is further improved by the fan housing from the core tube-shaped and then a rectangular housing shell with an intermediate pitted stone wool filling is dammed. The special design of the fan housing or better of the housing shell makes it possible to specifically arrange further rock wool so that the desired sound insulation is improved. In any case, this enlargement of the fan housing is usually harmless, because the dimensions of the associated deduster or other machine parts is predetermined so that the magnification is harmless here on the fan housing.

Der den einzelnen Lüfterrädem zugeführte Reingasstrom durchläuft einen Einlaufschalldämpfer, wobei dieser mit dem Lüftergehäuse verbunden sein kann, wobei auch dieser eine Doppelfunktion insofern übernimmt, als der dem Lüftergehäuse in Luftströmrichtung vorgeordnete Einlaufschalldämpfer bis annähernd zu Standfläche des Entstaubers erweitert und einen Ausgleichsraum bildend ausgeführt ist. Auch hier wird somit eine Vergrößerung des Strömungsquerschnittes vorgegeben, und dieser ganze Bereich des Einlaufschalldämpfers über Schalldämmwände abgesichert, sodass hiermit eine entsprechende Beruhigung erreicht werden kann. Die Größe dieses Einlaufschalldämpfers kann aufgrund der beschriebenen Ausführung gegenüber dem Stand der Technik verringert werden, sodass die gesamte Baulänge des Lüftergehäuses oder besser gesagt des betriebenen Gerätes damit eingeschränkt werden kann. Darüber hinaus besteht, wie schon erwähnt, die Möglichkeit, über ein Ausgleichsstück, das flexibel ausgebildet ist, und ein Übergangsstück zum Entstauber hin eine zusätzliche Schalldämmung sicherzustellen, sodass der beschrieben Einlaufschalldämpfer ggf. sogar ganz entfallen kann.The individual fan wheels supplied clean gas flow passes through an inlet silencer, which may be connected to the fan housing, which also assumes a dual function insofar as the fan housing in the air flow upstream inlet exhaust extended to approximately standing surface of the deduster and running a compensating space forming is. Here, too, an enlargement of the flow cross-section is thus predetermined, and this entire area of the intake silencer is protected by sound insulating walls, so that hereby a corresponding reassurance can be achieved. The size of this inlet silencer can be reduced due to the described embodiment over the prior art, so that the entire length of the fan housing or, more specifically, the operated device can be limited. In addition, there is, as already mentioned, the possibility of a compensating piece that is designed to be flexible, and a transition piece to the dust extractor to ensure additional sound insulation, so that the described inlet silencer may possibly even completely eliminated.

Die Erfindung zeichnet sich dadurch aus, dass ein Gerät geschaffen ist, d.h. ein Lüfter, der so ausgebildet und mit Schalldämpfern bestückt ist, dass er im untertägigen Bergbau aber auch in anderen Bereichen eingesetzt werden kann, um zusammen mit einem Entstauber oder ähnlichen Aggregaten die Reinigungsmöglichkeit für Staub beladene Lüftströme zu verbessern bzw. um für die Industrie einen Lüfter bzw. ein Gerät zur Erzeugung eines Luftstromes vorzugeben, das kompakt und stabil ausgebildet werden kann und dass bei annähernd 100%iger Schalldämmung große Leistungen zulässt, indem man beispielsweise einen oder mehrere Lüfter hintereinander anordnet und zusammenschaltet. Dabei wird nicht nur die Einlaufseite der Lüfter schallgedämmt, sondern vor allen Dingen auch die Auslaufseite, wobei hier der Auslaufschalldämpfer nicht nur volumenmäßig vergrößert wird, sondern auch bezüglich seiner Schalldämmwirkung. Dies erreicht man durch die mehreren Durchströmkanäle, die rundum über Schalldämmwände bzw. Schalldämmelemente abgesichert werden können. Am Ende bzw. beim Ausströmen der gereinigten Luft, ist die Schallbelastung praktisch auf Null gebracht.The invention is characterized in that a device is provided, i. a fan that is designed and fitted with silencers that it can be used in underground mining but also in other areas to improve together with a dust extractor or similar aggregates cleaning ability for dust-laden Lüftströme or to the industry a fan or specify a device for generating an air flow, which can be made compact and stable and that allows for close to 100% sound insulation high performance by, for example, one or more fans in a row arranges and interconnects. Not only the inlet side of the fan is soundproofed, but above all, the outlet side, in which case the outlet silencer is not only increased in terms of volume, but also with respect to its soundproofing effect. This can be achieved by the multiple flow channels, which can be secured all around by sound insulation or sound insulation. At the end or when flowing out of the purified air, the sound pressure is brought to virtually zero.

Weitere Einzelheiten und Vorteile des Erfindungsgegenstandes ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung, in der ein bevorzugtes Ausführungsbeispiel mit den dazu notwendigen Einzelheiten und Einzelteilen dargestellt ist. Es zeigen:

Figur 1
einen Längsschnitt eines Lüftergerätes,
Figur 2
eine Vor-Kopf-Ansicht bzw. einen Schnitt im Bereich des Auslaufschalldämpferaustritts,
Figur 3
eine perspektivische Wiedergabe eines säulenartigen Bauteils,
Figur 4
einen Schnitt durch den Lüfter im Bereich des Lüfterrades und
Figur 5
einen weiteren Querschnitt des Lüfters mit zusätzlicher Dämmung.
Further details and advantages of the subject invention will become apparent from the following description of the accompanying drawings in which a preferred embodiment with the necessary details and individual parts is shown. Show it:
FIG. 1
a longitudinal section of a fan unit,
FIG. 2
a front-head view or a section in the region of the outlet silencer outlet,
FIG. 3
a perspective view of a columnar member,
FIG. 4
a section through the fan in the area of the fan wheel and
FIG. 5
another cross section of the fan with additional insulation.

Bei dem in Figur 1 dargestellten Lüftergerät 1 handelt es sich um ein solches, dass einem hier nicht im Einzelnen gezeigten Entstauber 2 zugeordnet werden kann. Dementsprechend ist der Entstauber mit dem Lüftergehäuse 3 über ein Übergangsstück 38 und ein flexibles Ausgleichsstück 39 verbunden. Hier sei gleich erwähnt, dass dieses Übergangsstück mit einer Dämmung 40 aus Steinwolle versehen ist, wobei dieses Übergangsstück 38 auch die Funktion des weiter hinten noch mehr erläuterten Einlaufschalldämpfers 6 übernehmen kann.The fan unit 1 shown in FIG. 1 is one which can be assigned to a dust collector 2 which is not shown in detail here. Accordingly, the deduster is connected to the fan housing 3 via a transition piece 38 and a flexible compensation piece 39. It should be mentioned here that this transition piece is provided with an insulation 40 made of rock wool, this transition piece 38 can also take over the function of the further explained in more detail inlet silencer 6.

Das Lüftergehäuse 3 weist das Lüfterrad 4 und den Antrieb 5 auf, wobei der Antrieb gemäß Figur 5 auf einem Lüfterbock 9 angeordnet ist. Bei der aus Figur 1 ersichtlichen Ausführungsform sind zwei Lüftergehäuse 3, 8 hintereinander angeordnet und mit Lüfterrädem 4 ausgerüstet, die eine annähernd verdoppelte Leistung erbringen. An das zweite Lüftergehäuse 8 schließt sich ein Stromverteiler 10 an, der das Verbindungsteil zum Auslaufschalldämpfer 7 darstellt.The fan housing 3 has the fan 4 and the drive 5, wherein the drive is arranged according to Figure 5 on a fan block 9. In the embodiment shown in Figure 1, two fan housing 3, 8 are arranged one behind the other and equipped with fan wheels 4, which provide an approximately doubled performance. To the second fan housing 8, a power distributor 10 connects, which is the connecting part to the outlet silencer 7.

Der Stromverteiler 10 verfügt über alle Schalldämmelemente 16 und ist weit herunter gezogen ausgebildet, bei dem Einsatz mit einem Entstauber 2 bis annähemd zur Sohle hin. Diese Schalldämmelemente 16 bestehen ebenso wie die Schalldämmelemente 15 der beiden Lüftergehäuse 3, 8 aus Steinwolle, wobei zwischen die Teilschalldämmelemente 17 Metalldämpfer 33 angeordnet sind, die dafür sorgen, dass eine Beschädigung der Dämmelemente durch das Lüfterrad 4 nicht erfolgt.The power distributor 10 has all the sound insulation elements 16 and is formed pulled down far, when used with a deduster 2 to approxemdemd towards the sole. These soundproofing elements 16, like the soundproofing elements 15 of the two fan housings 3, 8, consist of rockwool, wherein metal dampers 33 are arranged between the partial soundproofing elements 17, which ensure that damaging elements are not damaged by the fan wheel 4.

Wie schon erwähnt, ist der Stromverteiler 10 mit einem gegenüber dem Strömungsquerschnitt der Lüftergehäuse 3, 8 vergrößerten Strömungsquerschnitt ausgerüstet, sodass ein sogenannter Ausgleichsraum 20 entsteht, indem es zu einer Beruhigung des Reingasstromes kommt. Außerdem werden durch die Leitbleche 21 die Teilströme so gelenkt, dass der Reingasstrom auf jeden der in Figur 1 wiedergegebenen Durchströmkanäle 11, 12, 13 geleitet wird. Bei der Ausführung in Figur 1 gibt es insgesamt vier Durchströmkanäle 11, 12, 13, 12', bei der Darstellung nach Figur 2 drei Durchströmkanäle 11, 12, 13.As already mentioned, the current distributor 10 is equipped with a flow cross-section which is larger than the flow cross-section of the fan housing 3, 8, so that a so-called equalization space 20 is created by a calming of the clean gas flow. In addition, the partial flows are directed by the baffles 21, that the clean gas flow to each of the reproduced in Figure 1 flow channels 11, 12, 13 is passed. In the embodiment in FIG. 1, there are a total of four throughflow channels 11, 12, 13, 12 ', in the illustration according to FIG. 2 three throughflow channels 11, 12, 13.

Die Durchströmkanäle 11, 12, 13 sind rundum über Schalldämmelemente 15 abgedeckt, was man insbesondere aus Figur 2 ersehen kann, sodass die eigentlichen Durchströmkanäle 11, 12, 13 gegenüber der Umwelt vollständig abgesichert sind.The flow-through channels 11, 12, 13 are completely covered by sound-absorbing elements 15, which can be seen in particular from FIG. 2, so that the actual flow-through channels 11, 12, 13 are completely protected against the environment.

Das in Luftströmrichtung 22 hindurchströmende Reingas wird so gleichmäßig durch die Durchströmkanäle 11, 12, 13 geleitet, dass die Schalldämmelemente 15 voll wirksam werden können. Die einzelne Schalldämmwand 24 des Dämpfergehäuses 23 besteht aus dem Außenblech 29, dem zum Innenraum 27 hin angeordneten Lochblech 28 und der diesen Zwischenraum 26 ausfüllenden Steinwollefüllung 25. Dadurch ergibt sich, wie Figur 2 verdeutlicht, für jeden Kanal eine Rundumdämmung, wobei die Seitenwand oder eine der Seitenwände 31 klappbar ausgebildet ist bzw. geöffnet werden kann, sodass man die Steinwollfüllung 25 leicht einbringen kann.The clean gas flowing through in the air flow direction 22 is conducted through the flow channels 11, 12, 13 so uniformly that the sound insulation elements 15 can be fully effective. The individual sound-absorbing wall 24 of the damper housing 23 consists of the outer panel 29, the perforated plate 28 arranged towards the interior 27 and the rock wool filling 25 filling this gap 26. As shown in FIG. 2, this results in all-round insulation for each duct, the side wall or a wall the side walls 31 is designed to be foldable or can be opened, so that you can easily bring the rock wool filling 25.

Die Steinwollefüllung 25 wird dabei in Form säulenförmiger Bauteile 30 eingebracht. Ein solches Bauteil 30 zeigt Figur 3, wobei hier erkennbar ist, dass diese großen säulenförmigen Bauteile 30 von der Seitenwand 31 her eingeschoben werden und dabei zwischen Außenblech 29 und Lochblech 28 angeordnet werden.The rock wool filling 25 is introduced in the form of columnar components 30. Such a component 30 is shown in FIG. 3, it being apparent here that the latter large columnar components 30 are inserted from the side wall 31 forth and are arranged between outer panel 29 and perforated plate 28.

Diese säulenförmigen Bauteile 30 werden sowohl als Schalldämmelement 15 beim Auslaufschalldämpfer eingesetzt wie als Schalldämmelement 16 bei einem Stromverteiler, als Schalldämmelement 17 beim Lüftergehäuse 3 und als Schalldämmelement 18 beim Einlaufschalldämpfer 6. Durch die gleiche Ausbildung ist der Aufbau eines solchen Lüftergerätes wesentlich vereinfacht.These columnar components 30 are used both as a sound damping element 15 at the outlet silencer as a soundproofing element 16 at a power distributor, as a soundproofing element 17 at the fan housing 3 and as a soundproofing element 18 at the inlet silencer 6. By the same design, the construction of such a fan device is substantially simplified.

Figur 4 und Figur 5 zeigen Querschnitte des Lüftergehäuses 3, wobei nach Figur 4 der kreisrunde Querschnitt sich auch an der Wandung widerspiegelt, wobei hier zwischen Lochblech 28 und Außenblech 29 ebenfalls die aus Figur 3 sichtlichen säulenförmigen Bauteile 30 Verwendung finden. Die Gehäusewand 34 wird dabei eigentlich durch das Außenblech 29 dargestellt, letztlich aber vom Gesamtgebilde, das ja durch die Schalldämmelemente 17 bzw. die säulenförmigen Bauteile 30 zusätzlich stabilisiert ist.Figure 4 and Figure 5 show cross sections of the fan housing 3, wherein according to Figure 4, the circular cross section is also reflected on the wall, here between the perforated plate 28 and outer panel 29 also find the visible from Figure 3 columnar components 30 use. The housing wall 34 is actually represented by the outer panel 29, but ultimately of the overall structure, which is additionally stabilized by the soundproofing elements 17 and the columnar components 30.

Figur 5 zeigt den aufgeständerten Antrieb 5 für das Lüfterrad 4, das Figur 4 zu entnehmen ist. Hier ist die Gehäusewand 34 ebenfalls in Form einer Doppelwand dargestellt, nämlich bestehend aus Lochblech 28 und Außenblech 29, wobei dann zusätzlich ein Gehäusemantel 35 vorgesehen ist, der eine zusätzliche Steinwollfüllung 36 aufnimmt, die praktisch den Hohlraum zwischen dem quadratischen Gehäusemantel 35 und der kreisrunden Gehäusewand 34 ausfüllt.Figure 5 shows the elevated drive 5 for the fan 4, the figure 4 can be seen. Here, the housing wall 34 is also shown in the form of a double wall, namely consisting of perforated plate 28 and outer panel 29, then additionally a housing shell 35 is provided which receives an additional Steinwollfüllung 36, which practically the cavity between the square housing shell 35 and the circular housing wall 34 fills out.

Die einzelnen Figuren 1 bis 5 verdeutlichen, dass praktisch das Gesamtgehäuse des Lüftergerätes 1 durch Schalldämmelemente 15, 16, 17, 18 abgesichert ist, dies auch bezüglich der Durchströmkanäle 11, 12 und 13. Dadurch ergibt sich ein vorteilhafter Dämmeffekt, der dazu führt, dass ein solches einem Entstauber 2 beispielsweise zugeordnetes Lüftergerät als solches ohne Gefährdung der Umwelt bzw. Beeinträchtigung der Umwelt eingesetzt werden kann. Aufgrund der kompakten Ausbildung kann die Gesamtlänge des Lüftergerätes 1 in sehr engen Grenzen gehalten werden, d.h. deutlich unter 10 Meter, in der Regel sogar um 5 Meter. Dies führt dazu, dass derartige Lüftergeräte insbesondere in beengten Verhältnissen vorteilhaft einsetzbar sind, sodass diese sowieso durch Lärm häufig beeinträchtigten Arbeitsplätze damit wesentlich ergonomischer ausgebildet werden können.The individual figures 1 to 5 illustrate that virtually the entire housing of the fan unit 1 is protected by sound insulation elements 15, 16, 17, 18, this also with respect to the flow channels 11, 12 and 13. This results in an advantageous insulation effect, which leads to Such a dust extractor 2, for example, associated fan unit can be used as such without endangering the environment or adverse effect on the environment. Due to the compact design, the total length of the fan unit 1 within very narrow limits kept well below 10 meters, usually even 5 meters. As a result, fan units of this kind can be advantageously used, in particular in cramped conditions, so that these workplaces, which are frequently affected by noise, can thus be made substantially more ergonomic.

Durch die beschriebenen Maßnahmen und Merkmale ist es möglich die Gesamtbaulänge des Lüfters auf rund 4 Meter zu verkürzen.Due to the described measures and features, it is possible to shorten the overall construction length of the fan to around 4 meters.

Claims (11)

  1. An apparatus for generating an airstream in a wet or dry dust collector (2), in particular for use in underground mining and tunnelling with a fan housing (3) and a fan wheel (4) with drive (5) as well as an associated sound absorber (6,7)
    characterized in that,
    the sound absorber (6,7) is designed as the inlet sound absorber (6) before the housing (3) and the outlet sound absorber (7) after the housing (3), that the fan housing is additionally fitted with sound dampening elements (17) and that the outlet sound absorber (7) has a flow distributor (10) is arranged before it, which distributes the pure gases leaving the fan housing (3) to a number of flow ducts (11,12,13) of the outlet sound absorber (7), the flow ducts (11,12,13) being secured all around by means of sound dampening walls (24).
  2. The apparatus according to Claim 1
    characterized in that,
    the flow distributor (10) is designed at the same time to be a compensation chamber (20) in which a guide plate guiding the pure gas (21) is arranged and that it is fitted with its own sound dampening elements (16).
  3. The apparatus according to any one of the preceding claims
    characterized in that,
    the flow distributor (10) and the associated outlet sound absorber (7) are fitted with a sound absorber housing (23) extending right up to the floor space of the associated dust collector (2).
  4. The apparatus to to any one of the preceding claims
    characterized in that,
    the sound dampening walls (24) have intermediate spaces (26) filled with rock wool filling (25).
  5. The apparatus according to any one of the preceding claims
    characterized in that,
    the rock wool filling (25) for the sound dampening walls (24) towards the interior (27) is fixed using perforated plates (28).
  6. The apparatus according to any one of the preceding claims
    characterized in that,
    the rock wool filling (25) is made up of column-shaped components (30) which are formed in such a way that they can be pushed into the intermediate space (26).
  7. The apparatus according to any one of the preceding claims
    characterized in that,
    at least one side wall (31) of the sound absorber housing (23) is designed in such a way that it can be removed or folded back.
  8. The apparatus according to any one of the preceding claims
    characterized in that,
    the column-shaped components (30) of the sound dampening walls (24) allocated to the fan housing (3) are arranged parallel to the direction of flow (22), a metal sound absorber (33) being provided in the middle in the area of the fan wheel (4).
  9. The apparatus according to any one of the preceding claims
    characterized in that,
    the metal sound absorber (33) is joint to the housing wall (34) additionally fixed by means of the column-shaped components (30) or secured or fixed by the perforate plates (28), which are holding the column-shaped components (30) at the same time.
  10. The apparatus according to any one of the preceding claims
    characterized in that,
    the fan housing (3) is pipe-shaped from the core and dampened by a rectangular housing jacket (35) with an intermediate rock-wool filling (36).
  11. The apparatus according to any one of the preceding claims
    characterized in that,
    the inlet sound absorber (6) arranged before the fan housing (3) is designed in such a way that it extends in the direction of the air flow (22) nearly up to the floor space of the dust collector (2) and forms a compensation compartment (20).
EP04017141A 2003-07-29 2004-07-21 Apparatus for generating an air current in a sound-isolated dust remover Expired - Lifetime EP1503033B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04017141T PL1503033T3 (en) 2003-07-29 2004-07-21 Apparatus for generating an air current in a sound-isolated dust remover

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10334601 2003-07-29
DE10334601A DE10334601A1 (en) 2003-07-29 2003-07-29 Device for generating airflow in soundproof design for dust extractors

Publications (2)

Publication Number Publication Date
EP1503033A1 EP1503033A1 (en) 2005-02-02
EP1503033B1 true EP1503033B1 (en) 2006-11-15

Family

ID=33521458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04017141A Expired - Lifetime EP1503033B1 (en) 2003-07-29 2004-07-21 Apparatus for generating an air current in a sound-isolated dust remover

Country Status (4)

Country Link
EP (1) EP1503033B1 (en)
AT (1) ATE345436T1 (en)
DE (2) DE10334601A1 (en)
PL (1) PL1503033T3 (en)

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DE102008027210B4 (en) * 2008-06-06 2016-06-02 Cft Gmbh Compact Filter Technic Dry dust extractor with sound insulation and electrostatic protection
CN101943021B (en) * 2010-10-20 2015-05-20 扬州引江矿业设备有限公司 Compressing-deslagging-drilling dust remover for coal pits
CN102359388A (en) * 2011-08-20 2012-02-22 太原理工大学 Wind-water atomizing dust removing device for mine
CN102606188B (en) * 2012-03-14 2014-10-01 三一重型装备有限公司 Dust removing fan and water system control method used for dust removing fan
CN103032094B (en) * 2012-12-20 2016-08-10 龙口矿业集团有限公司 Energy-saving self-circulation dust removal device for the pulp shooting machine
EP2789796A1 (en) * 2013-04-08 2014-10-15 Sandvik Intellectual Property AB Mining machine filtering unit with sound absorber
EP2789795A1 (en) * 2013-04-08 2014-10-15 Sandvik Intellectual Property AB Mining machine filtering unit
CN103362832B (en) * 2013-07-30 2016-01-20 傅中良 Based on shaft sump water source aerosol environmental protection and energy saving explosion-proof fan
EP2910732A1 (en) * 2014-02-24 2015-08-26 Sandvik Intellectual Property AB Mining machine filtration unit with minimised sound emission
CN103939127B (en) * 2014-04-04 2016-03-23 中国矿业大学(北京) Be equipped with the injection type deduster of multiple tubaeform diffuser
CN105003289B (en) * 2015-08-12 2017-10-27 山西煤炭进出口集团科技发展有限公司 A kind of mine return air heat exchange retention tower
CN106121712B (en) * 2016-08-16 2018-08-14 国电建投内蒙古能源有限公司 Coal mine horizontal tunneling boring high effect dust cleaner
CN106351686A (en) * 2016-11-29 2017-01-25 郑州中拓知识产权代理有限公司 Safe dust removal device for coal mine
CN108843374A (en) * 2018-06-20 2018-11-20 中钢集团马鞍山矿山研究院有限公司 A kind of movable type mine wet-type vibratory string cyclone dust
CN109594772B (en) * 2018-12-10 2020-12-04 温州高伟通工业设计有限公司 Atomizing humidification dust suppression equipment of environmental engineering site operation
CN110307031A (en) * 2019-06-11 2019-10-08 贾开兴 A kind of long and narrow space dust-extraction unit
CN115463499A (en) * 2022-10-19 2022-12-13 安徽理工大学 Self-air-suction foaming foam dust removal device and method for air return gallery of excavation working face

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DE2224767A1 (en) * 1972-05-20 1973-11-29 Heinz Hoelter DOUBLE ROLLER SCREWING MACHINE DUST COLLECTION IN INTEGRATED DESIGN
DE2443858A1 (en) * 1974-09-13 1976-03-25 Hoelter Heinz Dust extractor for tunnels and headings - has water sprayed in precipitators on both sides of centre fan
US4348057A (en) * 1980-08-25 1982-09-07 B & J Manufacturing Company Blower and dust collecting machine and method of operation
DE4431063A1 (en) * 1994-09-01 1996-03-07 Pohle & Rehling Gmbh Mobile underground suction conveyor equipment
DE19853190B4 (en) 1998-11-18 2009-01-22 Cft Gmbh Compact Filter Technic Rotary scrubber with inclined demister

Also Published As

Publication number Publication date
EP1503033A1 (en) 2005-02-02
DE502004001987D1 (en) 2006-12-28
PL1503033T3 (en) 2007-04-30
DE10334601A1 (en) 2005-03-03
ATE345436T1 (en) 2006-12-15

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