EP0856716A1 - Apparatus for heat treatment of plate- or web-shaped goods - Google Patents

Apparatus for heat treatment of plate- or web-shaped goods Download PDF

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Publication number
EP0856716A1
EP0856716A1 EP97120592A EP97120592A EP0856716A1 EP 0856716 A1 EP0856716 A1 EP 0856716A1 EP 97120592 A EP97120592 A EP 97120592A EP 97120592 A EP97120592 A EP 97120592A EP 0856716 A1 EP0856716 A1 EP 0856716A1
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EP
European Patent Office
Prior art keywords
slide
nozzle
web
nozzle boxes
openings
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.)
Granted
Application number
EP97120592A
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German (de)
French (fr)
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EP0856716B1 (en
Inventor
Friedrich Bahner
Klaus Hentschel
Karl-Friedrich Lang
Gerhard Lehn
Karl Maurer
Manfred Schmidt
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Grenzebach BSH GmbH
Original Assignee
Babcock BSH AG
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Publication date
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Publication of EP0856716A1 publication Critical patent/EP0856716A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/108Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials using one or more blowing devices, e.g. nozzle bar, the effective area of which is adjustable to the width of the material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • the invention is based on a device which is described in DE 43 31 496 A1 has become known.
  • the control openings of the slide in the edge areas the same width as the blow openings of the Nozzle box.
  • the width of the control openings increases from the edge to the center in sections to double, triple, etc. amount.
  • the slide opens the blow openings across the entire width.
  • the blow openings are blocked in narrow edge areas.
  • they are blocked in wide marginal areas.
  • DE-OS 14 60 672 describes another device that also the Preamble of claim 1 corresponds.
  • everyone has a nozzle box Blow openings in the form of several side by side, in the longitudinal direction rows of perforated nozzles or slot nozzles.
  • the Schieher has corresponding control slots, which depending on the position of the slide Open the blow openings or cover more or less.
  • DE-AS 1 196 156 In another device, which has become known from DE-AS 1 196 156, lies on a bottom of the Nozzle box a slide, in which between large control openings that the Blow openings correspond, additional small control openings are provided. Depending on the setting of the slide, the blow openings become full size released or partially covered, so that the smaller control openings Limit nozzle jet.
  • tenter frame dryers it is e.g. B. known from DE-GM 1 871 618, the protruding laterally beyond the respective web to be treated Cover the edge areas of the nozzle boxes with a slide.
  • DE-OS 1 596 520 shows a device in which on the blow openings provided bottom of the nozzle box several slides are arranged, which in Direction of width are next to each other and are adjustable in the conveying direction.
  • Each individual slide is equipped with an actuator, consisting of essentially from a horizontal threaded spindle with return spring and Lock nut.
  • the invention has for its object a device according to the Preamble of claim 1 to create that with a simple structure and Easy-to-use adjustment mechanism that is also equipped with tight spaces are easy to accommodate and accessibility - e.g. B. for maintenance work inside the dryer - not worth mentioning Dimensions hindered.
  • the dryer consists of several modular compartments.
  • An abbey measures e.g. B. in the conveying direction 2.0 to 2.5 m and is 5.0 to 6.0 m wide. It has a ceiling 1 and side walls 2, 3. In the abbey is through a False ceiling 4, a partition 5 and a grid-like support frame 6 Kember area 7 separated from a recirculation air duct. This consists of one horizontal channel 8 above the core area 7, a vertical side Distribution channel 9 and one on the opposite side essentially Collection channel 10 arranged in mirror symmetry.
  • the width of the core region 7 is about 50 to 65% of the total width, the height is about 60 to 80% of the Overall height.
  • rollers 11 arranged on one side the partition 5, are mounted on the other side in the support frame 6.
  • each roller 11 has a pin 12, on which a sprocket 13 sits. All rollers are 11 via chains, not shown drivable at the same speed. They therefore form one on each floor Roller conveyor on which the plates to be dried are in horizontal tracks Run through dryer.
  • the individual tracks each have a row of lower nozzle boxes 14 and one Row of upper nozzle boxes 15 assigned.
  • the nozzle boxes 14, 15 are finger-shaped and extend essentially over the entire Width of the roller conveyor.
  • the lower nozzle boxes 14 sit in the Spaces between adjacent rollers 11.
  • the upper nozzle boxes 15 are in relation to the path in which the plate to be treated moves arranged substantially mirror-symmetrically to the lower nozzle boxes 14.
  • the the boundary wall of the nozzle box 14, 15 facing the web is with circular blowing openings 16 provided, the three offset to each other, in rows extending essentially over the entire width of the roller conveyor form.
  • One end of the nozzle box 14, 15 is an inflow opening 17 formed, the other, the support frame 6 adjacent end is by a End wall 18 closed.
  • the nozzle box 14, 15 is wedge-shaped, so that the cross-section decreases steadily towards the closed end. Between adjacent tracks is the nozzle box 14, which is to the upper track heard and is provided on the top with blowing openings 16 with which the nozzle path 15 associated with the underlying path is connected in the manner of pants that the two nozzle boxes 14, 15 form a double box and one have a common inflow opening.
  • the nozzle boxes 14, 15 are immovable in attached to the partition 5 in such a way that the inflow openings 17 with cover corresponding passages of the partition 5.
  • On the end wall 18 an upright holding plate 19 attached.
  • the horizontal channel 8 is formed by a partition plate shaped like a stair step 20 divided into a suction chamber 21 and a pressure chamber 22.
  • the suction space 21 is in open connection with the collecting duct 8, the pressure chamber 22 with the Distribution channel 9.
  • a free-running (i.e. houseless) one-sided suction radial impeller 23 whose Drive shaft penetrates the ceiling 1 and with one sitting on the ceiling 1 Drive 24 is coupled.
  • the suction funnel 25 of the radial impeller 23 corresponds to an opening in the horizontal region of the separating plate 20, so that the radial impeller 23 is connected on the suction side to the suction chamber 21.
  • the holding plate 19 of the nozzle box 14, 15 has a vertical slot 26 Mistake.
  • By two screws 27 that reach through the elongated hole 26 is the holding plate 19 with one leg of a U-shaped Fastening element 28 connected.
  • the other tavern is on one horizontal support 29 of the support frame 6 attached.
  • the slot 26 allows in vertical direction, as shown by a double arrow in FIG. 5 symbolizes.
  • each nozzle box 14 sits on the closed by the end wall 18 End a slide 30, on each nozzle box 15 a slide 31.
  • the slide 30, 31 extend only over part of the width of the roller conveyor, for. B. about 10 to 20% of the width.
  • the slide 30, 31 has a flat, directly on the with Blow openings 16 provided wall surface of the nozzle box 14, 15 adjacent Middle part and on each side a narrow, right-angled edge 32.
  • the middle part is provided with circular control openings 33, which are analogous to the Blow openings 16 are arranged offset in rows, but one approximately have twice the diameter.
  • the slider 30, 31 grips the side Nozzle box 14, 15.
  • the edges 32 of the slide 30 are therefore down directed the slider 31 upwards. They form guides that are sliding Allow displacement of the slide 30, 31 on the nozzle box 14, 15.
  • To the Edges 34 are attached to eyelets 34. In it are the ends of tension springs 35 attached, the slider 30, 31 two connected to a double box Resiliently connect nozzle boxes 14, 15 so that they are easy to use Be pressed against the nozzle boxes 14, 15.
  • Each slide 30, 31 has at the end which the end wall 18 of the Nozzle box 14, 15 is immediately adjacent, one on each side protruding tab 36, which is provided with a slot.
  • a two-armed lever 37 which is rotatably connected by a pipe clamp-like connection sits on a shaft 38. He grips the end of the upward arm loosely into the slot of the tab 36 of the slide 30, with the end of the other arm directed down into the corresponding slot of the tab 36 of the Slider 31.
  • the shaft 38 is in bores 39 from inward, tongue-like projections of the fasteners 28 mounted.
  • a coupling sleeve 40 is attached, which a non-rotatable connection with a corresponding shaft Neighbor compartment allows.
  • a pivot arm 41 is connected to the shaft 38 in a rotationally fixed manner, which is connected to a trained at its free end fork a vertical tube 42 with which he is articulated by a bolt.
  • a vertical tube 42 With the tube 42, which is extends over the entire height of the core area 7, are corresponding Swivel arms 41 of the shafts 38 assigned to the other floors in the same Way connected.
  • the tube 42 is the common actuator for the different floors.
  • a crossbar 48 Located above the crossbar 48 is one Lock nut 49 attached with hand lever.
  • the lower end of the tube 42 is seated sliding on a guide pin connected to the bottom of the dryer, which is not shown in the drawing.
  • control openings 33 are the Slide 30 to the blow openings 16 of the nozzle boxes 14 in the width direction the dryer.
  • the blow holes 16 are therefore in the part of Nozzle box 14, which is covered by the slide 30, locked.
  • blow openings 16 of the nozzle box 15 one with the nozzle box 14 Double box forms, locked in the area on which the slide 31 sits. This Adjustment is advantageous if the plates 50 to be treated do not overlap extend the full width of the roller conveyor, as indicated in Figure 3.
  • the actuator 42 becomes upward by actuating the handwheel 46 moved until the swivel arms 41 of the different floors through the in Figure 4 Take dashed lines indicated position 41a.
  • the two-armed lever 37 is accordingly placed in position 37a and moves the slide 30 in the position 30a and at the same time the slide 31 in the opposite direction in the position 31a. In this position, the control openings 33 of the Slider 30, 31 with the blow openings 16 of the nozzle body 14, 15, so that all Blow openings are released.
  • the device according to the invention generally allows the distribution of the treatment intensity across the width to be changed in a simple manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Chain Conveyers (AREA)

Abstract

The device has a conveyor for transporting material along at least one horizontal track. A row of nozzle boxes are arranged on at least one side of the track and extend over its width, and have a wall surface with outlet openings which are turned towards the track. At least one group of boxes are each equipped with a slider (30,31), which extends over at least part of the track. Each slider can be adjusted across the track, and has control apertures which release different groups of outlet openings in different positions of the slider. The sliders are engaged by the free ends of levers (37), which sit on a pivoting shaft (38) which extends in the longitudinal direction.

Description

Die Erfindung betrifft eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device according to the preamble of claim 1.

Bei derartigen Vorrichtungen ist es möglich, die Verteilung der Behandlungsintensität in Querrichtung durch Verstellung der Schieber zu beeinflussen. Im einfachsten Falle können zwecks Anpassung an die Breite des jeweils zu behandelnden Gutes die randnahen Blasöffnungen einseitig oder beidseitig wahlweise freigegeben oder gesperrt werden. Je nach Anordnung der Steueröffnungen des Schiebers ist es möglich, die Blasöffnungen zonenweise in unterschiedlichem Maß abzudecken, um die Verteilung der Intensität einem gewünschten Profil anzupassen, z. B. zur Erzielung oder Unterdrückung von Randeffekten oder zur Kompensation von Unsymmetrien, die durch unsymmetrische Strömungsverhältnisse in der Vorrichtung bedingt sein können.With such devices, it is possible to distribute the treatment intensity in the transverse direction by adjusting the slide. in the simplest cases can be adjusted to the width of each treat the blow openings close to the edge on one or both sides can be either released or blocked. Depending on the arrangement of the control openings of the slider, it is possible to zone in the blow openings different degrees to cover the distribution of intensity one adjust desired profile, e.g. B. to achieve or suppress edge effects or to compensate for asymmetries caused by asymmetrical Flow conditions in the device can be caused.

Die Erfindung geht von einer Vorrichtung aus, die durch DE 43 31 496 A1 bekanntgeworden ist. Bei der bekannten Vorrichtung haben die Steueröffnungen des Schiebers in den Randbereichen die gleiche Breite wie die Blasöffnungen des Düsenkastens. Vom Rand zur Mitte hin steigt die Breite der Steueröffnungen abschnittweise auf den doppelten, dreifachen, usw. Betrag. In einer ersten Stellung gibt der Schieber die Blasöffnungen auf der ganzen Breite frei. In einer zweiten Stellung sind in schmalen Randbereichen die Blasöffnungen gesperrt. In einer dritten Stellung sind sie in breiten Randbereichen gesperrt.The invention is based on a device which is described in DE 43 31 496 A1 has become known. In the known device, the control openings of the slide in the edge areas the same width as the blow openings of the Nozzle box. The width of the control openings increases from the edge to the center in sections to double, triple, etc. amount. In a first position the slide opens the blow openings across the entire width. In a second Position, the blow openings are blocked in narrow edge areas. In a Third position, they are blocked in wide marginal areas.

DE-OS 14 60 672 beschreibt eine andere Vorrichtung, die ebenfalls dem Oberbegriff des Anspruchs 1 entspricht. Dabei hat jeder Düsenkasten Blasöffnungen in Form von mehreren nebeneinanderliegenden, in Längsrichtung der Bahn verlaufenden Lochdüsenreihen oder Schlitzdüsen. Der Schieher hat entsprechende Steuerschlitze, die je nach Stellung des Schiebers die Blasöffnungen freigeben oder mehr oder weniger abdecken.DE-OS 14 60 672 describes another device that also the Preamble of claim 1 corresponds. Everyone has a nozzle box Blow openings in the form of several side by side, in the longitudinal direction rows of perforated nozzles or slot nozzles. The Schieher has corresponding control slots, which depending on the position of the slide Open the blow openings or cover more or less.

Bei einer anderen Vorrichtung, die durch DE-AS 1 196 156 bekanntgeworden ist, liegt auf einem mit relativ großen Blasöffnungen versehenen Boden des Düsenkastens ein Schieber, bei dem zwischen großen Steueröffnungen, die den Blasöffnungen entsprechen, zusätzliche kleine Steueröffnungen vorgesehen sind. Je nach Einstellung des Schiebers werden die Blasöffnungen in voller Größe freigegeben oder teilweise abgedeckt, so daß die kleineren Steueröffnungen den Düsenstrahl begrenzen.In another device, which has become known from DE-AS 1 196 156, lies on a bottom of the Nozzle box a slide, in which between large control openings that the Blow openings correspond, additional small control openings are provided. Depending on the setting of the slide, the blow openings become full size released or partially covered, so that the smaller control openings Limit nozzle jet.

Die genannten Schriften enthalten keine näheren Angaben über die Mittel, mit denen die Schieber verstellt werden. Wenn auch die Verstellung sicherlich im Prinzip einfach ist, so kann sie doch bei Vorrichtungen, die eine große Anzahl von Düsenkästen, ggf. in mehreren Etagen, aufweisen, mit einem erheblichen Aufwand verbunden sein.The cited documents do not contain any details about the means with which the sliders are adjusted. If the adjustment is certainly in the Principle is simple, it can be the case with devices that have a large number of Have nozzle boxes, possibly in several floors, with considerable effort be connected.

Bei Spannrahmentrocknem ist es z. B. durch DE-GM 1 871 618 bekannt, die seitlich über die jeweils zu behandelnde Warenbahn hinausragenden Randbereiche der Düsenkästen durch Schieber abzudecken. Diese sind mit Mitnehmem versehen, die in die Kettenführungen eingreifen und bei Änderungen der Warenbahnbreite deren seitliche Bewegung auf die Schieber übertragen.With tenter frame dryers it is e.g. B. known from DE-GM 1 871 618, the protruding laterally beyond the respective web to be treated Cover the edge areas of the nozzle boxes with a slide. These are with Provide drivers that engage in the chain guides and in the event of changes the web width transfer their lateral movement to the slider.

DE-OS 1 596 520 zeigt eine Vorrichtung, bei der auf dem mit Blasöffnungen versehenen Boden des Düsenkastens mehrere Schieber angeordnet sind, die in Richtung der Breite nebeneinander liegen und in Förderrichtung verstellbar sind. Jeder einzelne Schieber ist mit einer Stellvorrichtung ausgestattet, bestehend im wesentlichen aus einer waagerechten Gewindespindel mit Rückholfeder und Kontermutter.DE-OS 1 596 520 shows a device in which on the blow openings provided bottom of the nozzle box several slides are arranged, which in Direction of width are next to each other and are adjustable in the conveying direction. Each individual slide is equipped with an actuator, consisting of essentially from a horizontal threaded spindle with return spring and Lock nut.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1 zu schaffen, die mit einem einfach aufgebauten und einfach zu bedienenden Verstellmechanismus ausgestattet ist, der auch bei beengten Platzverhältnissen problemlos unterzubringen ist und die Zugänglichkeit - z. B. für Wartungsarbeiten im Inneren des Trockners - nicht in nennenswertem Maße behindert.The invention has for its object a device according to the Preamble of claim 1 to create that with a simple structure and Easy-to-use adjustment mechanism that is also equipped with tight spaces are easy to accommodate and accessibility - e.g. B. for maintenance work inside the dryer - not worth mentioning Dimensions hindered.

Diese Aufgabe wird durch das kennzeichnende Merkmal des Anspruchs 1 gelöst. This object is achieved by the characterizing feature of claim 1.

Weitere vorteilhafte Merkmale sind Gegenstände der abhängigen Ansprüche 2 bis 6.Further advantageous features are the subject of dependent claims 2 to 6.

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels. Als bevorzugtes Ausführungsbeispiel ist dabei ein Gipskartonplattentrockner gewählt worden.

Figur 1
zeigt den Gipskartonplattentrockner im Querschnitt.
Figur 2
zeigt einen Längsschnitt.
Figur 3
zeigt einen Ausschnitt aus Figur 1 in größerem Maßstab.
Figur 4
zeigt einen Ausschnitt aus Figur 3 in noch größerem Maßstab.
Figur 5
zeigt die gleiche Einzelheit wie Figur 4, jedoch ohne die für die Erfindung spezifischen Teile.
Figur 6
zeigt ausschnittweise eine Draufsicht auf eine Reihe von Düsenkästen mit den für die Erfindung spezifischen Teilen.
Figur 7
zeigt einen Schnitt gemäß der Linie A-B in Figur 6.
The drawing serves to explain the invention with reference to an embodiment shown in simplified form. A gypsum board dryer was chosen as the preferred embodiment.
Figure 1
shows the plasterboard dryer in cross section.
Figure 2
shows a longitudinal section.
Figure 3
shows a section of Figure 1 on a larger scale.
Figure 4
shows a section of Figure 3 on an even larger scale.
Figure 5
shows the same detail as Figure 4, but without the parts specific to the invention.
Figure 6
shows a section of a plan view of a row of nozzle boxes with the parts specific to the invention.
Figure 7
shows a section along the line AB in Figure 6.

Der Trockner besteht aus mehreren baukastenartig aneinandergereihten Abteilen. Ein Abtei mißt z. B. in Förderrichtung 2,0 bis 2,5 m und ist 5,0 bis 6,0 m breit. Es hat eine Decke 1 und Seitenwände 2, 3. In dem Abtei ist durch eine Zwischendecke 4, eine Trennwand 5 und ein gitterartiges Traggestell 6 ein Kembereich 7 von einem Umluftkanal abgetrennt. Dieser besteht aus einem waagerechten Kanal 8 über dem Kembereich 7, einem seitlichen senkrechten Verteilerkanal 9 und einem auf der gegenüberliegenden Seite im wesentlichen spiegelsymmetrisch angeordneten Sammelkanal 10. Die Breite des Kernbereichs 7 beträgt etwa 50 bis 65 % der Gesamtbreite, die Höhe etwa 60 bis 80 % der Gesamthöhe. In dem Kembereich sind in mehreren Ebenen, in der Praxis in etwa acht bis zwölf Ebenen, die in gleichen Abständen von etwa 250 bis 350 mm etagenartig übereinanderliegen, Rollen 11 angeordnet, die an der einen Seite an der Trennwand 5, an der anderen Seite in dem Traggestell 6 gelagert sind. An dem Ende, das dem Traggestell 6 benachbart ist, hat jede Rolle 11 einen Zapfen 12, auf dem ein Kettenrad 13 sitzt. Über nicht dargestellte Ketten sind alle Rollen 11 mit der gleichen Geschwindigkeit antreibbar. Sie bilden daher in jeder Etage einen Rollenförderer, auf dem die zu trocknenden Platten in waagerechten Bahnen den Trockner durchlaufen.The dryer consists of several modular compartments. An abbey measures e.g. B. in the conveying direction 2.0 to 2.5 m and is 5.0 to 6.0 m wide. It has a ceiling 1 and side walls 2, 3. In the abbey is through a False ceiling 4, a partition 5 and a grid-like support frame 6 Kember area 7 separated from a recirculation air duct. This consists of one horizontal channel 8 above the core area 7, a vertical side Distribution channel 9 and one on the opposite side essentially Collection channel 10 arranged in mirror symmetry. The width of the core region 7 is about 50 to 65% of the total width, the height is about 60 to 80% of the Overall height. In the Kember area are on several levels, in practice approximately eight to twelve levels that are equidistant from about 250 to 350 mm lie on top of each other like a tier, rollers 11 arranged on one side the partition 5, are mounted on the other side in the support frame 6. To the End, which is adjacent to the support frame 6, each roller 11 has a pin 12, on which a sprocket 13 sits. All rollers are 11 via chains, not shown drivable at the same speed. They therefore form one on each floor Roller conveyor on which the plates to be dried are in horizontal tracks Run through dryer.

Den einzelnen Bahnen ist je eine Reihe von unteren Düsenkasten 14 und eine Reihe von oberen Düsenkästen 15 zugeordnet. Die Düsenkästen 14, 15 sind fingerartig ausgebildet und erstrecken sich im wesentlichen über die gesamte Breite des Rollenförderers. Die unteren Düsenkästen 14 sitzen in den Zwischenräumen nebeneinanderliegender Rollen 11. Die oberen Düsenkästen 15 sind in bezug auf die Bahn, in der sich die zu behandelnde Platte bewegt, im wesentlichen spiegelsymmetrisch zu den unteren Düsenkästen 14 angeordnet. Die der Bahn zugekehrte Begrenzungswand des Düsenkastens 14, 15 ist mit kreistunden Blasöffnungen 16 versehen, die drei zueinander versetzte, im wesentlichen über die gesamte Breite des Rollenförderers reichende Reihen bilden. Das eine Ende des Düsenkastens 14, 15 ist als Zuströmöffnung 17 ausgebildet, das andere, dem Traggestell 6 benachbarte Ende ist durch eine Stirnwand 18 geschlossen. Der Düsenkasten 14, 15 ist keilförmig ausgebildet, so daß der Querschnitt in Richtung auf das geschlossene Ende stetig abnimmt. Zwischen benachbarten Bahnen ist der Düsenkasten 14, der zu der oberen Bahn gehört und auf der Oberseite mit Blasöffnungen 16 versehen ist, mit dem der darunterliegenden Bahn zugeordneten Düsenkasten 15 hosenartig verbunden, so daß die beiden Düsenkästen 14, 15 einen Doppelkasten bilden und eine gemeinsame Einströmöffnung haben. Die Düsenkästen 14, 15 sind unbeweglich in der Weise an der Trennwand 5 befestigt, daß sich die Einströmöffnungen 17 mit entsprechenden Durchlässen der Trennwand 5 decken. An der Stirnwand 18 ist eine hochkant angeordnete Halteplatte 19 befestigt.The individual tracks each have a row of lower nozzle boxes 14 and one Row of upper nozzle boxes 15 assigned. The nozzle boxes 14, 15 are finger-shaped and extend essentially over the entire Width of the roller conveyor. The lower nozzle boxes 14 sit in the Spaces between adjacent rollers 11. The upper nozzle boxes 15 are in relation to the path in which the plate to be treated moves arranged substantially mirror-symmetrically to the lower nozzle boxes 14. The the boundary wall of the nozzle box 14, 15 facing the web is with circular blowing openings 16 provided, the three offset to each other, in rows extending essentially over the entire width of the roller conveyor form. One end of the nozzle box 14, 15 is an inflow opening 17 formed, the other, the support frame 6 adjacent end is by a End wall 18 closed. The nozzle box 14, 15 is wedge-shaped, so that the cross-section decreases steadily towards the closed end. Between adjacent tracks is the nozzle box 14, which is to the upper track heard and is provided on the top with blowing openings 16 with which the nozzle path 15 associated with the underlying path is connected in the manner of pants that the two nozzle boxes 14, 15 form a double box and one have a common inflow opening. The nozzle boxes 14, 15 are immovable in attached to the partition 5 in such a way that the inflow openings 17 with cover corresponding passages of the partition 5. On the end wall 18 an upright holding plate 19 attached.

Der waagerechte Kanal 8 ist durch ein treppenstufenähnlich geformtes Trennblech 20 in einen Saugraum 21 und einen Druckraum 22 unterteilt. Der Saugraum 21 steht mit dem Sammelkanal 8 in offener Verbindung, der Druckraum 22 mit dem Verteilerkanal 9. Mitten in dem waagerechten Kanal 8, und zwar in dem durch das Trennblech 20 abgetrennten Druckraum 22, ist ein freilaufendes (d. h. gehäuseloses) einseitig saugendes Radiallaufrad 23 untergebracht, dessen Antriebswelle die Decke 1 durchdringt und mit einem auf der Decke 1 sitzenden Antrieb 24 gekoppelt ist. Mit dem Ansaugtrichter 25 des Radiallaufrades 23 korrespondiert eine Öffnung in dem horizontalen Bereich des Trennblechs 20, so daß das Radiallaufrad 23 saugseitig mit dem Saugraum 21 in Verbindung steht.The horizontal channel 8 is formed by a partition plate shaped like a stair step 20 divided into a suction chamber 21 and a pressure chamber 22. The suction space 21 is in open connection with the collecting duct 8, the pressure chamber 22 with the Distribution channel 9. In the middle of the horizontal channel 8, in that through the Baffle 20 separated pressure space 22 is a free-running (i.e. houseless) one-sided suction radial impeller 23, whose Drive shaft penetrates the ceiling 1 and with one sitting on the ceiling 1 Drive 24 is coupled. With the suction funnel 25 of the radial impeller 23 corresponds to an opening in the horizontal region of the separating plate 20, so that the radial impeller 23 is connected on the suction side to the suction chamber 21.

Die Halteplatte 19 des Düsenkasten 14, 15 ist mit einem senkrechten Langloch 26 versehen. Durch zwei Schrauben 27, die durch das Langloch 26 hindurchgreifen, ist die Halteplatte 19 mit einem Schenkel eines U-ähnlich geformten Befestigungselementes 28 verbunden. Der andere Schenke ist an einem waagerechten Träger 29 des Traggestells 6 befestigt. das Langloch 26 erlaubt in senkrechter Richtung eine Verschiebung, wie durch einen Doppelpfeil in Figur 5 symbolisiert.The holding plate 19 of the nozzle box 14, 15 has a vertical slot 26 Mistake. By two screws 27 that reach through the elongated hole 26 is the holding plate 19 with one leg of a U-shaped Fastening element 28 connected. The other tavern is on one horizontal support 29 of the support frame 6 attached. the slot 26 allows in vertical direction, as shown by a double arrow in FIG. 5 symbolizes.

Auf jedem Düsenkasten 14 sitzt an dem durch die Stirnwand 18 geschlossenen Ende ein Schieber 30, auf jedem Düsenkasten 15 ein Schieber 31. Die Schieber 30, 31 erstrecken sich nur über einen Teil der Breite des Rollenförderers, z. B. über 10 bis 20 % der Breite. Der Schieber 30, 31 hat ein flaches, unmittelbar an der mit Blasöffnungen 16 versehenen Wandfläche des Düsenkasten 14, 15 anliegendes Mittelteil und an jeder Seite einen schmalen, rechtwinklig abgekanteten Rand 32. Das Mittelteil ist mit kreisrunden Steueröffnungen 33 versehen, die analog zu den Blasöffnungen 16 reihenweise versetzt angeordnet sind, jedoch einen etwa doppelt so großen Durchmesser haben.On each nozzle box 14 sits on the closed by the end wall 18 End a slide 30, on each nozzle box 15 a slide 31. The slide 30, 31 extend only over part of the width of the roller conveyor, for. B. about 10 to 20% of the width. The slide 30, 31 has a flat, directly on the with Blow openings 16 provided wall surface of the nozzle box 14, 15 adjacent Middle part and on each side a narrow, right-angled edge 32. The middle part is provided with circular control openings 33, which are analogous to the Blow openings 16 are arranged offset in rows, but one approximately have twice the diameter.

Mit den abgekanteten Rändern 32 umgreift der Schieber 30, 31 seitlich den Düsenkasten 14, 15. Die Ränder 32 der Schieber 30 sind daher nach unten gerichtet, die der Schieber 31 nach oben. Sie bilden Führungen, die eine gleitende Verschiebung des Schiebers 30, 31 auf dem Düsenkasten 14, 15 erlauben. An den Rändern 32 sind Ösen 34 angebracht. Darin sind die Enden von Zugfedern 35 befestigt, die die Schieber 30, 31 zweier zu einem Doppelkasten verbundener Düsenkästen 14, 15 nachgiebig miteinander verbinden, so daß sie mit leichtem Druckan die Düsenkästen 14, 15 angepresst werden.With the folded edges 32, the slider 30, 31 grips the side Nozzle box 14, 15. The edges 32 of the slide 30 are therefore down directed the slider 31 upwards. They form guides that are sliding Allow displacement of the slide 30, 31 on the nozzle box 14, 15. To the Edges 34 are attached to eyelets 34. In it are the ends of tension springs 35 attached, the slider 30, 31 two connected to a double box Resiliently connect nozzle boxes 14, 15 so that they are easy to use Be pressed against the nozzle boxes 14, 15.

Jeder Schieber 30, 31 hat an dem Ende, welches der Stirnwand 18 des Düsenkastens 14, 15 unmittelbar benachbart ist, zu beiden Seiten je eine vorstehende Lasche 36, die mit einem Schlitz versehen ist. Beiderseits unmittelbar neben dem aus zwei Düsenkästen 14, 15 gebildeten Doppelkasten befindet sich ein zweiarmiger Hebel 37, der durch eine rohrschellenartige Verbindung drehfest auf einer Welle 38 sitzt. Er greift mit dem Ende des nach oben gerichteten Arms lose in den Schlitz der Lasche 36 des Schiebers 30 ein, mit dem Ende des nach unten gerichteten anderen Arms in den entsprechenden Schlitz der Lasche 36 des Schiebers 31. Die Welle 38 ist in Bohrungen 39 von nach innen gerichteten, zungenartigen Vorsprüngen der Befestigungselemente 28 gelagert. Sie liegt in dem durch die Keilform der Düsenkörper 14, 15 bedingten Zwischenraum der beiden Düsenkörper 14, 15 und erstreckt sich parallel zur Förderrichtung über die Länge eines Abteils. Am Ende der Welle 38 ist eine Kupplungsmuffe 40 befestigt, die eine drehfeste Verbindung mit einer entsprechenden Welle eines Nachbarabteils ermöglicht.Each slide 30, 31 has at the end which the end wall 18 of the Nozzle box 14, 15 is immediately adjacent, one on each side protruding tab 36, which is provided with a slot. Immediately on both sides is located next to the double box formed from two nozzle boxes 14, 15 a two-armed lever 37, which is rotatably connected by a pipe clamp-like connection sits on a shaft 38. He grips the end of the upward arm loosely into the slot of the tab 36 of the slide 30, with the end of the other arm directed down into the corresponding slot of the tab 36 of the Slider 31. The shaft 38 is in bores 39 from inward, tongue-like projections of the fasteners 28 mounted. It lies in the space caused by the wedge shape of the nozzle bodies 14, 15 two nozzle bodies 14, 15 and extends parallel to the conveying direction over the Length of a compartment. At the end of the shaft 38, a coupling sleeve 40 is attached, which a non-rotatable connection with a corresponding shaft Neighbor compartment allows.

Mit der Welle 38 ist drehfest ein Schwenkarm 41 verbunden, der mit einer an seinem freien Ende ausgebildeten Gabel ein senkrechtes Rohr 42 umgreift, mit dem er durch einen Bolzen gelenkig verbunden ist. Mit dem Rohr 42, welches sich über die gesamte Höhe des Kembereichs 7 erstreckt, sind entsprechende Schwenkarme 41 der den übrigen Etagen zugeordneten Wellen 38 in der gleichen Weise verbunden. Das Rohr 42 ist das gemeinsame Stellorgan für die verschiedenen Etagen.A pivot arm 41 is connected to the shaft 38 in a rotationally fixed manner, which is connected to a trained at its free end fork a vertical tube 42 with which he is articulated by a bolt. With the tube 42, which is extends over the entire height of the core area 7, are corresponding Swivel arms 41 of the shafts 38 assigned to the other floors in the same Way connected. The tube 42 is the common actuator for the different floors.

Eine durch eine Muffe 43 mit dem Rohr 42 verbundene Verlängerungsstange 44 durchdringt die Decke 1 des Trockners. Darauf ist in einem Gestell 45 ein Bedienungsorgan angeordnet, bestehend im wesentlichen aus einem Handrad 46 und einer Gewindespindel 47, die in einer Gewindebohrung eines Querriegels 48 des Gestells 45 sitzt und mit der Verlängerungsstange 44 des nicht drehbaren Rohres 42 drehbar gekoppelt ist. Unmittelbar über dem Querriegel 48 ist eine Kontermutter 49 mit Handhebel angebracht. Das untere Ende des Rohres 42 sitzt gleitend auf einem mit dem Boden des Trockners verbundenen Führungszapfen, der in der Zeichnung nicht dargestellt ist.An extension rod 44 connected to pipe 42 by a sleeve 43 penetrates the ceiling 1 of the dryer. This is in a frame 45 Operating element arranged, consisting essentially of a handwheel 46 and a threaded spindle 47, which is in a threaded bore of a cross bolt 48 of the frame 45 sits and with the extension rod 44 of the non-rotatable Tube 42 is rotatably coupled. Immediately above the crossbar 48 is one Lock nut 49 attached with hand lever. The lower end of the tube 42 is seated sliding on a guide pin connected to the bottom of the dryer, which is not shown in the drawing.

In der durch Figur 6 veranschaulichten Stellung sind die Steueröffnungen 33 der Schieber 30 zu den Blasöffnungen 16 der Düsenkästen 14 in Richtung der Breite des Trockners versetzt. Die Blasöffnungen 16 sind daher in dem Teil des Düsenkastens 14, der durch den Schieber 30 abgedeckt ist, gesperrt. Ebenso sind die Blasöffnungen 16 des Düsenkastens 15, der mit dem Düsenkasten 14 einen Doppelkasten bildet, in dem Bereich gesperrt, auf dem der Schieber 31 sitzt. Diese Einstellung ist vorteilhaft, wenn die zu behandelnden Platten 50 sich nicht über die volle Breite des Rollenförderers erstrecken, wie in Figur 3 angedeutet.In the position illustrated by Figure 6, the control openings 33 are the Slide 30 to the blow openings 16 of the nozzle boxes 14 in the width direction the dryer. The blow holes 16 are therefore in the part of Nozzle box 14, which is covered by the slide 30, locked. Likewise are the blow openings 16 of the nozzle box 15, one with the nozzle box 14 Double box forms, locked in the area on which the slide 31 sits. This Adjustment is advantageous if the plates 50 to be treated do not overlap extend the full width of the roller conveyor, as indicated in Figure 3.

Wenn es aber erwünscht ist, daß das Behandlungsmedium auf der vollen Breite wirksam ist, wird durch Betätigung des Handrades 46 das Stellorgan 42 aufwärts bewegt, bis die Schwenkarme 41 der verschiedenen Etagen die in Figur 4 durch gestrichelte Linien angedeutete Position 41a einnehmen. Der zweiarmige Hebel 37 wird dementsprechend in die Position 37a gestellt und bewegt den Schieber 30 in die Stellung 30a und gleichzeitig den Schieber 31 in entgegengesetzter Richtung in die Stellung 31a. In dieser Stellung decken sich die Steueröffnungen 33 der Schieber 30, 31 mit den Blasöffnungen 16 der Düsenkörper 14, 15, so daß alle Blasöffnungen freigegeben werden.However, if it is desired that the treatment medium be at full width is effective, the actuator 42 becomes upward by actuating the handwheel 46 moved until the swivel arms 41 of the different floors through the in Figure 4 Take dashed lines indicated position 41a. The two-armed lever 37 is accordingly placed in position 37a and moves the slide 30 in the position 30a and at the same time the slide 31 in the opposite direction in the position 31a. In this position, the control openings 33 of the Slider 30, 31 with the blow openings 16 of the nozzle body 14, 15, so that all Blow openings are released.

Da die schwenkbare Welle 38 sich über die ganze Länge eines Abteils erstreckt und das Stellorgan 42 mit den Schwenkhebeln 41 sämtlicher Etagen verbunden ist, werden die Schieber 30, 31 sämtlicher Düsenkästen 14, 15 eines Abteils, soweit sie mit den entsprechenden Einrichtungen ausgestattet sind, gleichzeitig verstellt. Falls die schwenkbaren Wellen 38 durch Kupplungsmuffen 40 mit den entsprechenden Wellen anderer Abteile verbunden sind, wird eine entsprechende Verstellung auch in den anderen Abteilen bewirkt.
Es ist hervorzuheben, daß die Auswahl der speziellen Schieber 30, 31, die zur Erläuterung der Erfindung im Rahmen des Ausführungsbeispiels dargestellt und beschrieben wurden, insbesondere unter dem Gesichtspunkt der Einfachheit erfolgte. Die Erfindung betrifft insbesondere den Verstellmechanismus, der selbstverständlich auch in Verbindung mit anderen Schiebem mit Vorteil anwendbar ist. Dazu gehören Schieber, die sich über die gesamte Breite erstrecken, die andere, kompliziertere Muster von Steueröffnungen aufweisen oder die in mehr als zwei Stellungen jeweils unterschiedliche Gruppen von Blasöffnungen freigaben, wie z. B. die eingangs erwähnten, zum Stand der Technik gehörenden Schieber. Bei entsprechender Ausbildung der Schieber erlaubt es die erfindungsgemäße Vorrichtung generell, die Verteilung der Behandlungsintensität über der Breite in einfacher Weise zu ändern.
Since the pivotable shaft 38 extends over the entire length of a compartment and the actuator 42 is connected to the pivot levers 41 of all levels, the slider 30, 31 of all nozzle boxes 14, 15 of a compartment, insofar as they are equipped with the appropriate devices, become simultaneous adjusted. If the pivotable shafts 38 are connected to the corresponding shafts of other compartments by coupling sleeves 40, a corresponding adjustment is also effected in the other compartments.
It should be emphasized that the selection of the special sliders 30, 31 which have been illustrated and described in order to explain the invention in the context of the exemplary embodiment was carried out in particular from the point of view of simplicity. The invention relates in particular to the adjustment mechanism, which of course can also be used advantageously in conjunction with other pushers. These include sliders that extend across the entire width, that have different, more complicated patterns of control openings, or that each release different groups of blow openings in more than two positions, such as, for. B. the above-mentioned, belonging to the prior art slide. With a corresponding design of the slide, the device according to the invention generally allows the distribution of the treatment intensity across the width to be changed in a simple manner.

Claims (6)

Vorrichtung zum Wärmebehandeln von durchlaufenden platten- oder bahnförmigen Gütern durch Aufblasen eines gasförmigen Mediums, insbesondere Mehretagentrockner für Gipskartonplatten, mit einem Förderer für das zu behandelnde Gut in mindestens einer waagerechten Bahn und mit folgenden weiteren Merkmalen: Mindesten auf einer Seite der Bahn ist eine Reihe von Düsenkästen angeordnet, die sich über die Breite der Bahn erstrecken und eine der Bahn zugekehrte, mit Blasöffnungen versehene Wandfläche aufweisen; es gibt mindestens eine Gruppe von Düsenkästen, die mit je einem Schieber ausgestattet sind, der sich mindestens über einen Teil der Breite der Bahn erstreckt; jeder Schieber ist quer zur Bahn verstellbar und mit Steueröffnungen versehen, die in verschiedenen Stellungen des Schiebers unterschiedliche Gruppierungen von Blasöffnungen freigeben;
dadurch gekennzeichnet, daß auf einer verschwenkbaren Welle (38), die sich in Längsrichtung erstreckt, mehrere Hebel (37) sitzen, die mit ihren freien Enden an den Schiebern (30, 31) angreifen.
Device for the heat treatment of continuous sheet or sheet goods by inflating a gaseous medium, in particular a multi-stage dryer for plasterboard, with a conveyor for the goods to be treated in at least one horizontal path and with the following additional features: At least on one side of the web there is a row of nozzle boxes which extend across the width of the web and have a wall surface facing the web and provided with blowing openings; there is at least one group of nozzle boxes, each equipped with a slide that extends at least over part of the width of the web; each slide is adjustable transversely to the web and provided with control openings which release different groups of blow openings in different positions of the slide;
characterized in that several levers (37) are seated on a pivotable shaft (38) which extends in the longitudinal direction and engage with their free ends on the slides (30, 31).
Vorrichtung nach Anspruch 1, mit mindestens zwei übereinander angeodneten Reihen von Düsenkästen (14, 15), die mit Schiebem (30, 31) ausgestattet sind, dadurch gekennzeichnet, daß die Hebel (37) zweiarmig sind und daß der eine Hebelarm an einem Schieber (30) der oberen Reihe und der andere Hebelarm an einem Schieber (31) der unteren Reihe angreift. Device according to claim 1, with at least two one above the other Arranged rows of nozzle boxes (14, 15), which with slide (30, 31) are equipped, characterized in that the lever (37) has two arms are and that the one lever arm on a slide (30) of the upper row and the other lever arm engages a slide (31) in the lower row. Vorrichtung nach Anspruch 2, mit mindestens zwei etagenartig übereinander angeordneten Bahnen, denen je eine untere und eine obere Reihe von Düsenkästen (14, 15) zugeordnet ist, dadurch gekennzeichnet daß die Schieber (30, 31) außen auf den Düsenkästen (14, 15) sitzen, daß jeder Schieber (30) eines unteren Düsenkastens (14) der oberen Etage mit dem Schieber (31) des zugeordneten oberen Düsenkastens (15) der unteren Etage durch Zugfedern (35) verbunden ist und daß an den beiden miteinander verbundenen Schiebem (30, 31) je ein Arm eines zweiarmigen Hebels (37) angreift. Apparatus according to claim 2, with at least two tracks arranged one above the other, each with a lower and an upper row of nozzle boxes (14, 15) being assigned, characterized that the slides (30, 31) sit outside on the nozzle boxes (14, 15), that each slide (30) of a lower nozzle box (14) of the upper level is connected to the slide (31) of the associated upper nozzle box (15) of the lower level by tension springs (35) and that one arm of a two-armed lever (37) engages on the two interconnected pushers (30, 31). Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß an der Welle (38) ein Schwenkarm (41) befestigt ist, dessen freies Ende mit einem Stellorgan (42) verbunden ist.Device according to one of claims 1 to 3, characterized in that on the shaft (38) a swivel arm (41) is attached, the free end with an actuator (42) is connected. Vorrichtung nach Anspruch 4, mit mindestens zwei übereinander angeordneten Reihen von Düsenkästen (14, 15), die mit Schiebem (30, 31) ausgestattet sind, dadurch gekennzeichnet, daß zur Betätigung der Schieber (30, 31) mindestens zwei übereinander liegende schwenkbare Wellen (38) vorhanden sind und daß die Schwenkarme (41) der verschiedenen Wellen (38) mit einem gemeinsamen Stellorgan (42) verbunden sind, welches sich über die Höhe des Kernbereichs (7) erstreckt, in dem die Düsenkästen (14, 15) angeordnet sind.Apparatus according to claim 4, with at least two one above the other arranged rows of nozzle boxes (14, 15), which with slide (30, 31) are equipped, characterized in that for actuating the slide (30, 31) at least two swiveling shafts (38) lying one above the other are present and that the swivel arms (41) of the various shafts (38) are connected to a common actuator (42) which is extends over the height of the core area (7) in which the nozzle boxes (14, 15) are arranged. Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß das Stellorgan (42) mit einem außerhalb angeordneten Bedienungsorgan (46, 47) gekoppelt ist.Apparatus according to claim 4 or 5, characterized in that the Actuating element (42) with an operating element (46, 47) arranged outside is coupled.
EP97120592A 1997-02-01 1997-11-25 Apparatus for heat treatment of plate- or web-shaped goods Expired - Lifetime EP0856716B1 (en)

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DE29701755U 1997-02-01
DE29701755U DE29701755U1 (en) 1997-02-01 1997-02-01 Device for the heat treatment of continuous plate or strip goods

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EP0856716A1 true EP0856716A1 (en) 1998-08-05
EP0856716B1 EP0856716B1 (en) 2001-11-21

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EP (1) EP0856716B1 (en)
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Also Published As

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DE29701755U1 (en) 1997-04-17
US6108931A (en) 2000-08-29
ES2166943T3 (en) 2002-05-01
DE59705476D1 (en) 2002-01-03
EP0856716B1 (en) 2001-11-21
ATE209327T1 (en) 2001-12-15
DK0856716T3 (en) 2002-05-13

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