EP2417290B1 - Apparatus for compacting a fibrous web - Google Patents

Description

The invention relates to a device for solidifying a fibrous web according to the preamble of claim 1.

• ein die Faserbahn unterstützendes erstes Endlosband, das zwischen mindestens zwei Walzen gespannt geführt und umgelenkt ist,
• eine durchlässige Vernadelungstrommel, die von dem Endlosband umschlungen ist,
• ein dem ersten Endlosband zugeordnetes zweites, ebenfalls zwischen mindestens zwei Walzen gespannt geführtes Endlosband, dessen dem Arbeitstrum des ersten Endlosbandes gegenüber liegendes Arbeitstrum in der gleichen Richtung angetrieben umläuft wie das des ersten Endlosbandes,
• die beiden Arbeitstrum der beiden Endlosbänder sind in ihrer Längserstreckung am Einlauf konisch aufeinander zu gerichtet, so dass die auf dem Arbeitstrum des ersten Endlosbandes liegende Faserbahn (das Vorvlies, der Flor) zwischen den vorlaufenden Endlosbändern zunehmend verdichtet wird,
• die beiden Endlosbänder werden von zwei Walzen gegen die Vernadelungstrommel zur stärkeren Umschlingung der Trommel gedrückt,
• zwischen diesen beiden Walzen ist ein Düsenbalken zur Netzung der Faserbahn gegen diese gerichtet.

From the EP-A-0 959 076 a device for solidifying the fibers of a fiber web of natural and / or artificial fibers of any kind is known, in which a band-drum compacting of the fiber web takes place. It consists of the following characteristics or is designed as follows:

• a fiber web supporting the first endless belt, which is guided and deflected between at least two rollers,
• a permeable needling drum, which is looped by the endless belt,
• a second band, also tensioned between at least two rollers and associated with the first endless belt, the endless belt of which, opposite the workstring of the first endless belt, revolves in the same direction as that of the first endless belt;
• the two working strands of the two endless belts are directed conically toward one another in their longitudinal extent, so that the fiber web lying on the workstring of the first endless belt (the pre-fleece, the pile) is increasingly compressed between the leading endless belts,
• the two endless belts are pressed by two rollers against the needling drum for stronger wrapping of the drum,
• between these two rollers, a nozzle bar for meshing the fiber web is directed against this.

The device of this type has the advantage that the pre-fleece, the voluminous leading fiber web, between the two endless belts is slowly increasingly compressed with uniform pressure from above and below without shearing and only when it is held firmly between the two endless belts to the needling drum is wetted.

This known device is characterized in particular by an equal on the drum generated intensive wetting. Furthermore, after removal of the second endless belt on the drum directly a Vemadelung be performed by means of a second, now directed directly against the lying on the drum fiber web nozzle beam. The construction is very complicated and too expensive for some products.

• ein die Faserbahn unterstützendes erstes Endlosband, das zwischen mindestens zwei Walzen gespannt geführt und umgelenkt ist,
• ein zweites Endlosband, ebenfalls zwischen mindestens zwei Walzen gespannt geführt, dessen dem Arbeitstrum des ersten Endlosbandes gegenüber liegendes Arbeitstrum in der gleichen Richtung angetrieben umläuft wie das des ersten Endlosbandes,
• die beiden Arbeitstrums der beiden Endlosbänder sind am Einlauf in ihrer Längserstreckung konisch aufeinander zu gerichtet, so dass die auf dem Arbeitstrum des ersten Endlosbandes liegende Faserbahn zwischen den vorlaufenden Endlosbändern zunehmend verdichtet wird,
• in einem nicht von einer Umlenkwalze unterstützten Bereich ein den beiden miteinander umlaufenden Endlosbändern zugeordneter erster Düsenbalken mit einer Absaugung zum Netzen der Faserbahn.

From the EP 1 126 064 B1 a device is known which simplifies the compaction and the first nets of the web. This known device provides a band-band compaction and consists of the following features or is designed as follows:

• a fiber web supporting the first endless belt, which is guided and deflected between at least two rollers,
• a second endless belt, also guided stretched between at least two rollers, which rotates the Arbeitstrum of the first endless belt opposite working strand in the same direction as that of the first endless belt,
• the two working strands of the two endless belts are tapered towards one another at the inlet in their longitudinal extension, so that the fibrous web lying on the working strand of the first endless belt increasingly compacts between the leading endless belts becomes,
• in an area not supported by a deflection roller, a first nozzle beam assigned to the two mutually endless belts is provided with a suction for meshing the fiber web.

With the known devices, it is possible to slowly compress the fibrous web consisting of loose, mutually unconsolidated fibers and the netting in the pressed state. Since the fibrous web is compressed and necked in this state, individual fibers remain in the endless compressive belt (the compacting belt) after netting and after loosening from the fiber web to be further needled, which will soil the belt and ultimately permanent optimum treatment of the following fibrous web hinder.

To avoid the described disadvantage is in the band drum compaction according to the WO 2004/046444 A1 provided that the nozzle bar arranged between the rollers leading the Kompaktierband arranged such that the water jets hit the fiber web in the transport direction of the fiber web only behind the compression region.

Such an orientation of the nozzle bar causes an unchanged effective network of the pressed fiber web, but the fiber web is released by the water jets of the pressing endless belt. At the same time, the compacting belt is rinsed free of adhering fibers and these fibers are fed back into the fiber structure. However, the described solution is only possible with a belt-drum compaction.

From the WO 2008/107549 A2 is a device for fleece processing known in which the lying on a revolving conveyor belt web of fibers or filaments is transferred by a taking place from below through the conveyor belt water jet application to the lower side of a second conveyor belt. The two conveyor belts have a distance which is greater than the thickness of the nonwoven web. By different speeds of the conveyor belts, the basis weight of the nonwoven web can be influenced. However, with the two conveyor belts running at different speeds, there is no compaction of the nonwoven web. A compaction can only be done by another tape system, which causes a high construction cost.

The DE 10 2005 055 939 B3 shows a nozzle beam for generating fluid jets, which serve to solidify a fibrous web. The nozzle strip contains a replaceable nozzle strip which contains the outlet openings for the fluid. The outlet openings may be arranged in a row, but also in two or more rows parallel to each other. The outlet openings have a distance from each other and diameter, which depend on the purpose. As a fluid, pressurized water but in principle also superheated steam can be used.

Object of the present invention is one of the EP 1 126 064 B1 known device for solidifying a material web formed from fibers and / or filaments, consisting of a first, the material web-bearing, tensioned around guide rollers, circulating endless belt, and a second, stretched around guide rollers, in opposite directions to the first band at the same speed revolving endless belt, said first and second endless belt in a, in the conveying direction of the material web first region forming a conical Kompaktierbereich converge at an angle to each other, thereby the material web located between the bands is increasingly pressed, wherein the first area then a first nozzle beam for the first fluid loading of the web located still between the two endless belts is arranged, the two bands are guided in this area of the first Fluidbeaufschlagung each stretched in a straight direction to improve.

This object is achieved by the features of claim 1 or 6. Advantageous developments of the invention will become apparent from the respective dependent claims.

According to the invention, it is provided in a first embodiment that, in the area of the first fluid application, the two belts are continuously tensioned at an acute angle (β). The two belts, the conveyor belt which carries the material web consisting of fibers and / or filaments, and the compacting belt which effects the pressing, run apart at an acute angle relative to the transport direction of the web. Preferably, the leadership of the bands is such that it is adjustable according to the fiber, Filamentart and other conditions. It can thus be provided that the fluid is applied in a region in which the web is only barely pressed. In particular, it is possible for the first fluid admission to take place by means of two rows of outlet openings for the fluid which are arranged one behind the other and run parallel to one another. Here it is possible for a nozzle strip having the openings to have two rows of outlet openings in a nozzle bar, or two nozzle bars to be arranged one behind the other. The latter arrangement makes it possible that the fluid admission takes place with different pressure values.

In an arrangement for the first fluid admission of between The material web supported by the transport and the compacting belt with two nozzle bars can be provided in such a way that the material web is still pressed during the pressurization by the fluid jets of the first nozzle beam during the application of the fluid jets of the second nozzle beam but hardly or no longer pressed. In the case of a low or no longer occurring pressing by Kompaktierband be adhered by the fluid jets of the second nozzle beam in the mesh of the Kompaktierbandes adhering fibers back into the web and incorporated there in the composite again.

The same idea of the invention is pursued in a second embodiment, according to which the following is provided: the two bands are guided parallel to one another in the region of the first fluid admission and not parallel to one another in a subsequent second section. Under a first Fluidbeaufschlagung here is the admission of the fiber web understood by fluid jets of a single or a plurality of jet bars arranged one behind the other.

Aussererbem is provided that the two bands are stretched in the second section at an acute angle divergent.

• die beiden Bänder umschlingen gemeinsam eine Umlenkwalze und laufen parallel zueinander, die Materialbahn gepresst haltend, zu einer weiteren gemeinsamen Umlenkwalze.
• die nicht parallele Führung der beiden Bänder ist in dem zweiten Abschnitt einstellbar.
• eine Umlenkwalze eines der Bänder ist einstellbar, so dass der Winkel der Richtungen, unter denen die Bänder auseinanderlaufen, veränderbar ist.
• die erste Fluidbeaufschlagung erfolgt mittels mehreren, bezogen auf den Gesamtweg der Materialbahn innerhalb der gesamten Anlage kurz hintereinander angeordneten Düsenbalken, die in dem ersten und/oder zweiten Abschnitt angeordnet sind.
• im ersten Abschnitt ist ein erster Düsenbalken und im zweiten Abschnitt ein zweiter Düsenbalken angeordnet.

Further education is provided for:

• the two bands together wrap around a guide roller and run parallel to each other, the material web pressed holding, to another common guide roller.
• the non-parallel guidance of the two bands is adjustable in the second section.
• a deflection roller of one of the belts is adjustable so that the angle of the directions under which the belts diverge is variable.
• the first application of fluid takes place by means of a plurality of nozzle bars which are arranged in short succession relative to the total path of the material web within the entire system and which are arranged in the first and / or second section.
• in the first section, a first nozzle bar and in the second section, a second nozzle bar is arranged.

According to this alternative embodiment of the invention it is provided that the two bands are stretched in the second section at an acute angle diverging. In the first section, the two belts run parallel to one another, which can be effected by the two belts being deflected together by a first deflecting roller and the compacting belt subsequently being guided away at an acute angle from the transport belt carrying the nonwoven by means of a further deflecting roller. The compacting belt runs in this section in the direction of a further deflection roller, which is preferably mounted adjustable, such that the angle under which the transport and Kompaktierband diverge, can be adjusted.

Furthermore, it can be provided that, for the formation of the first section, the two strips are each guided jointly around two deflection rollers, in this first section thus formed running parallel to one another.

The common looping of the two guide rollers can in this case take place in the same direction or alternately. Also in these embodiments, the Kompaktierband from the second guide roller at an acute angle of the nonwoven carrying the conveyor belt is guided away. The compacting belt runs in this second section in the direction of a further deflection roller, which is preferably mounted adjustable, such that the angle at which the transport and Kompaktierband diverge, can be adjusted.

According to one embodiment of the invention, in each case a nozzle bar is arranged in the first and in the second section. There is thus a first application, meshes of the pressed between the two parallel bands held fiber web in this first section. In the second section, a further nozzle bar is arranged, so that the wetted web is now applied once again through the structure of Kompaktierbandes and solidified, in which second section the Kompaktierband runs away at an acute angle of the nonwoven carrying the conveyor belt.

In the case of a low or no longer occurring pressing by Kompaktierband in the second section adhering fibers are returned by the fluid jets of the second nozzle beam in the mesh of the Kompaktierbandes back into the web and incorporated there into the composite again.

It can be provided that the fluid admission takes place in the two successive sections with different pressure values and also also different hole spacings and hole diameters.

Furthermore, the explanation of embodiments of the invention with reference to the drawings. The term fiber web in this case means an unbonded pile of fibers and / or filaments, which is provided by a pile producer in unbonded form (material web before the first solidification, fluid loading). The term nonwoven is used for the web after it has undergone a first consolidation.

A conveyor belt 1 (first endless belt) designed as an endless screen belt is held stretched around deflection rollers U, U1 and rotated in the clockwise direction as indicated by the arrow (FIG. FIG. 1 ). Another designed as an endless screen belt compacting 2 (second endless belt) is stretched around guide rollers U2, U2-J and rotated, as indicated by the arrow, counterclockwise. The Kompaktierband 2 runs at the same speed as the conveyor belt 1 and so in the work stream synchronous to the fiber web F supporting workstring of the conveyor belt 1. The guide rollers U, U1, U2, U2-J are rotatably mounted in machine frame parts, not shown.

On the conveyor belt 1, an unconsolidated fiber web F (pile) is provided by, for example, a card, not shown, and runs on this in the direction of the guide roller U. By in FIG. 1 The deflecting roller U1 shown on the left, the deflecting roller U and a deflecting roller U2 form the conveyor belt 1 and the compacting belt 2 a conically tapered compacting area for the fiber web F. Since both conveyor belt 1 and compacting belt 2 are deflected around the deflecting roller U, the fiber web F is deflected in this direction common wrap area pressed the strongest.

Subsequent to the deflection roller U, the conveyor belt 1 and the compacting belt 2 each run straight in a straight direction with a sharp angles apart. The Kompaktierband 2 runs in the direction of the guide roller U2-J, the conveyor belt 1 in the direction of a FIG. 1 not shown further deflection roller.

In this area, downstream of the deflection roller U, a first nozzle beam D is arranged above the fiber web covered by the compacting belt 2. This acts together with a below the fibrous web carrying conveyor belt 1 arranged suction A and causes by the directed onto the fiber web fluid jets W a first easy solidification of the structure. If water jets are ejected through the nozzle bar D, a netting of the fibrous web takes place in this area. The fibrous web F is now compacted to a slightly consolidated nonwoven (Vorvlies) V and leaves below the guide roller U2-J the area of Kompaktierbandes 2. There are further means not shown for fluidization, for further solidification and / or structuring of the web.

FIG. 2 is an enlargement of the area between the common guide roller U and cooperating with the Kompaktierband 2 guide roller U2-J. the conveyor belt 1 and cooperating with this Kompaktierband 2 wrap around the common guide roller U at an angle α. In this area the fiber web experiences the strongest pressure. Following the deflection roller U, the conveyor belt 1 and the compacting belt 2 run apart at an acute angle β. The deflection belt U2-J guiding the compacting belt K away from the direction of the conveyor belt 1 is mounted in height-adjustable manner in the machine frame (double arrow), so that the angle β can be set within a range indicated by the dashed line.

FIG. 3 is a further enlargement of the arrangement FIG. 2 in the region between the deflection roller U and the height-adjustable deflection roller U2-J. The adjusted by the setting of the guide roller U2-J angle β between the nonwoven V carrying conveyor belt 1 and the Kompaktierband 2 is such that the passing through the Kompaktierband 2 fluid jets W only then hit the surface of the web V after the Kompaktierband second has no contact with the fleece V has. The end point of the contact of Kompaktierband 2 and fleece V is marked with K.

FIG. 4 shows a situation in which the angle β between the nonwoven V carrying conveyor belt 1 and the Kompaktierband 2 is set so that the passing through the Kompaktierband 2 fluid jets W hit at the point K on the surface of the web V, ie at the Place where the Kompaktierband 2 loses contact with the web V. The common deflection roller U is in FIG. 4 not shown.

By adjusting the deflection roller U2-J so the angle β between the non-woven fabric V carrying conveyor belt 1 and the Kompaktierband 2 can be adjusted, ie the distance between the point K, from which the Kompaktierband 2 has no contact with the web V and passage the fluid jets W through the Kompaktierband second

Finally, an angle β can also be set so that the fluid jets W passing through the compacting belt 2 strike the web V when the compacting belt 2 is still in contact with the web V. Also in this case, conveyor belt 1 and Kompaktierband 2 also do not run parallel to each other, the angle β is only flatter than in the situations after FIG. 3 or 4 ,

In the execution after FIG. 5 are in the area between the common guide roller U and the adjustable guide roller U2-J two nozzle bars D1, D2 above the Kompaktierbandes 2 together with suction A1, A2 below the conveyor belt 1. By means of the fluid jets W1 of the first nozzle beam D1, the nonwoven is applied for the first time, wetted, by means of the fluid jets W2 of the second nozzle beam D2, which pass through the compacting belt 2, after the compacting belt 2 has no contact with the web V, become fiber adhesions removed from the compacting belt 2 and brought back into the web V.

The FIG. 6 shows an embodiment of the invention, in which unlike the version of FIG. 1 none of the Kompaktierband 2 deflecting guide rollers U2 is adjustable. The setting of an angle between the Kompaktierband 2 and the nonwoven carrying the transport belt 1 in the region of the first impingement with fluid jets W is carried by a conveyor belt 1 supporting guide roller U1-J, which is adjustable in the direction of the double arrow.

The alternative invention design and the corresponding variants will now be based on the FIGS. 7-11 explained.

A conveyor belt 1 (first endless belt) designed as an endless screen belt is held stretched around deflection rollers U, U1 and rotated in the clockwise direction as indicated by the arrow (FIG. FIG. 7 ). Another formed as an endless screen belt compacting 2 (second endless belt) is stretched around guide rollers U2, U2-P, U2-J and rotated, as indicated by the arrow, counterclockwise. The Kompaktierband 2 runs at the same speed as the conveyor belt 1 and so synchronously in the field of his Arbeitstrum The guide rollers U, U1, U2, U2-P, U2-J are rotatably mounted in machine frame parts, not shown, supporting the fiber web F working strand of the conveyor belt.

On the conveyor belt 1, an unconsolidated fiber web F (pile) is provided by, for example, a card, not shown, and runs on this in the direction of the guide roller U. By in FIG. 1 The deflecting roller U1 shown on the left, the deflecting roller U and a deflecting roller U2 form the conveyor belt 1 and the compacting belt 2 a conically tapered compacting area for the fiber web F. Since both conveyor belt 1 and compacting belt 2 are deflected around the deflecting roller U, the fiber web F is deflected in this direction common wrap around pressed.

In a first section AB1, the conveyor belt 1 and the compacting belt 2 run parallel, thereby keeping the fibrous web therebetween pressed.

Subsequent to a deflection roller U2-P run in the second section AB2, the conveyor belt 1 and the Kompaktierband 2 each in a straight direction stretched apart at an acute angle β. The Kompaktierband 2 runs in the direction of the adjustable guide roller U2-J, the conveyor belt 1 in the direction of a further deflection roller, not shown in the figures. The adjustability of the guide roller U2-J is indicated by the double arrow.

In the first section AB1, downstream of the deflection roller U, a first nozzle beam D1 is arranged above the fiber web covered by the compacting belt 2. This acts together with a below the fiber web carrying conveyor belt 1 arranged suction A1 and causes by the directed onto the fiber web fluid jets W1 easy solidification of the structure. If water jets are ejected through the nozzle bar D1, a netting of the fibrous web takes place in this area. The fibrous web F is now compressed to a slightly consolidated nonwoven (Vorvlies) V and passes after the guide roller U2-P the second section AB2, in which the conveyor belt 1 and the compacting 2 each strained in a straight direction at an acute angle β apart. In this second section AB2, a second nozzle bar D2 is arranged above the compacting belt 2. Below the nonwoven V carrying conveyor belt 1, a suction 2 is arranged. The loading of the web V takes place here by fluid jets W2, which pass through the structure (wire belt) of Kompaktierbandes 2, then on the surface of the web V and ultimately pass through the structure of the conveyor belt 1 therethrough. The nozzle bars D1 and D2 are, based on the total path of the fiber web F and the web V within the entire system arranged in quick succession and cause a total of a first Fluidbeaufschlagung the material web in the context of the invention.

FIG. 8 shows an embodiment of the invention, in which the conveyor belt 1 and the Kompaktierband 2 only about a common guide roller U and then, reversed in the opposite direction to run around a guide roller U2-P. In the first section AB1, the two belts 1, 2 run parallel and keep the fibrous web therebetween pressed. There is an application of fluid jets W1 of a first nozzle beam D1 with arranged under the conveyor belt suction A1. Subsequent to the deflection roller U2-P run in the second section AB2, the conveyor belt 1 and the compacting belt 2 each strained in a straight direction at an acute angle β apart. The Kompaktierband 2 runs in the direction of the adjustable guide roller U2-J, the conveyor belt 1 in the direction of an in FIG. 2 not shown further deflection roller.

In the execution after FIG. 9 run the conveyor belt 1 and the Kompaktierband 2 each deflected in the same direction about two guide rollers U, U1-P. In this first section AB1 a first nozzle beam D1 is arranged together with suction A1. Subsequent to the deflection roller U1-P run in the second section AB2, the conveyor belt 1 and the Kompaktierband 2 each in a straight direction stretched apart at an acute angle β. In this second section AB2, a second nozzle bar D2 with suction A2 is arranged in order to carry out the first fluid admission of the nonwoven V. The loading of the web V takes place here by fluid jets W2, which pass through the structure (wire belt) of Kompaktierbandes 2, then on the surface of the web V and ultimately pass through the structure of the conveyor belt 1 therethrough.

By adjusting the guide roller U2-J so the angle β between the non-woven fabric V carrying conveyor belt 1 and the Kompaktierband 2 can be adjusted, ie the distance between the point K, from which the compacting 2 has no contact with the web V and the Passage of the fluid jets W2 through the compacting belt 2 ( FIG. 10 ).

FIG. 10 is an enlargement of the arrangement FIG. 9 in the second section AB2 between the guide roller U1-P and the height-adjustable guide roller U2-J. The adjusted by the adjustability of the guide roller U2-J angle β between the nonwoven V carrying conveyor belt 1 and the Kompaktierband 2 is such that the passing through the compacting belt 2 fluid jets W2 only then hit the surface of the web V after the Kompaktierband second has no contact with the fleece V has. The end point of the contact of Kompaktierband 2 and fleece V is marked with K.

FIG. 11 shows a situation in which the angle β between the nonwoven V carrying conveyor belt 1 and the Kompaktierband 2 is set so that the passing through the Kompaktierband 2 fluid jets W2 meet at the point K on the surface of the web V, ie at the Place where the Kompaktierband 2 loses contact with the web V.

Finally, in the second section AB2, an angle β can also be set so that the fluid jets W2 passing through the compacting belt 2 strike the web V when the compacting belt 2 is still in contact with the web V. Also in this case, the conveyor belt 1 and the compacting belt 2 also do not run parallel to one another, the angle β is only shallower than in the illustrated situations FIG. 10 or 11 ,

LIST OF REFERENCE NUMBERS

1

Conveyor belt, first endless belt

2

Compacting belt, second endless belt

F

Fiber web, pile, filament web

V

Fleece, fibrous web, pile, filament web after pressing, first fluid application

U

Guide roller conveyor 1, compacting belt 2

U1

Guide roller conveyor belt

U2

Deflection roller compacting belt

U1-J

Deflection roller Conveyor belt adjustable

U2-J

Deflection roller compacting belt adjustable

U1-P

Guide roller conveyor belt

U2-P

Deflection roller compacting belt

D

nozzle beam

D1

first nozzle bar

D2

second nozzle bar

A

suction

A1

first suction

A2

second suction

W

fluid jet

W1

Fluid jet of the first nozzle beam D1

W2

second second nozzle bar D2

AB1

first section (transport, compacting belt parallel)

STARTING AT 2

second section (transport, compacting belt at an acute angle)

α

Angle - wrapping conveyor belt 1, compacting belt 2 common deflection roller U

β

Angle between conveyor belt 1 and compacting belt 2

Claims (11)

1. A device for solidifying a material web formed of fibers and/or filaments, said device consisting of a first circulating transport belt formed as an endless belt, carrying the material web and being trained about guide rollers (U,U1), and of a compacting belt (2) formed as an endless belt, being trained about guide rollers (U2,U2-J) and circulating in the opposite sense to said first belt at the same speed, wherein said transport belt (1) and said compacting belt (2), while forming a conical compacting region in a first region as viewed the transport direction of the material web, converge toward each other at an angle, whereby the material web arranged between said belt is increasingly pressed, wherein, following said first region, a first nozzle bar is located for first fluid application to the material web still arranged between said two endless belts, and wherein, in said region of first fluid application, said two belts are each guided under tension while oriented in a linear direction,
   characterized in that,
   in said region of first fluid application (D,W,A), said transport belt and said compacting belt (1,2) are not guided parallel to each other and that, in said region of first fluid application (D,W,A), said transport belt (1) and said compacting belt (2) are guided under tension to diverge from each other under an acute angle (β).
2. The device according to claim 1,
   characterized in that
   the two belts, while holding the material web in a pressed state, together are trained around a guide roller (U) and thereafter, in said region of first fluid application (D,W,A), run toward a respective further guide roller (U1-J,U2-J).
3. The device according to claim 1 or 2,
   characterized in that
   said non-parallel guidance of the two belts (1,2) is adjustable in said region of first fluid application (D,W,A).
4. The device according to claim 3,
   characterized in that
   a guide roller (U1-J,U2-J) of one of the belts (1,2) is adjustable in such a manner that the angle (β) of the directions in which the belts (1,2) diverge from each other, is variable.
5. The device according to any one of the preceding claims,
   characterized in that,
   in said region of first fluid application, a second nozzle bar (D2) is arranged adjacent to the first nozzle bar (D1).
6. A device for solidifying a material web formed of fibers and/or filaments, said device consisting of a first circulating transport belt formed as an endless belt, carrying the material web and being trained about guide rollers (U,U1), and of a second compacting belt (2) formed as an endless belt, being trained about guide rollers (U2,U2-J) and circulating in the opposite sense to said first belt at the same speed, wherein said transport belt and said compacting belt, while forming a conical compacting region in a first region as viewed the transport direction of the material web, converge toward each other at an angle, whereby the material web arranged between said belt is increasingly pressed, wherein, following said compacting region, a nozzle bar is located for first fluid application to the material web still arranged between the two endless belts, and wherein, in said region of first fluid application, the two belts are each guided under tension while oriented in a linear direction,
   characterized in that,
   in said region of first fluid application (D,W,A), the two belts (1,2) are in a first section (AB1) guided to be parallel to each other and, in a following second section (AB2), are guided to be not parallel to each other, wherein, in said second section (AB2), the two belts (1,2) are guided under tension to diverge from each other under an acute angle (β).
7. The device according to claim 6,
   characterized in that
   the two belts (1,2) together are trained around a guide roller (U) and run parallel to each other, while holding the material web in a pressed state, toward a further common guide roller (U1-P,U2-P).
8. The device according to claim 6 or 7,
   characterized in that
   said non-parallel guidance of the two belts (1,2) is adjustable in said second section (AB2).
9. The device according to claim 8,
   characterized in that
   a guide roller (U1-J) of one of the belts (1,2) is adjustable in such a manner that the angle (β) of the directions in which the belts (1,2) diverge from each other, is variable.
10. The device according to any one of the preceding claims 6-9,
    characterized in that
    said first fluid application is performed by a plurality of nozzle bars (D1,D2) arranged closely behind each other relative to the total path of the material web within the overall system, the nozzle bars being arranged in said first and/or said second section (AB1,AB2).
11. The device according to any one of the preceding claims 6 - 10,
    characterized in that,
    in said first section (AB1), a first nozzle bar (D1) is arranged and, in said second section (AB2), a second nozzle bar (D2) is arranged.

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