EP0089408B1 - Procédé et dispositif pour la ventilation de la matière à sécher dans un tunnel de séchage - Google Patents

Procédé et dispositif pour la ventilation de la matière à sécher dans un tunnel de séchage Download PDF

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Publication number
EP0089408B1
EP0089408B1 EP82110780A EP82110780A EP0089408B1 EP 0089408 B1 EP0089408 B1 EP 0089408B1 EP 82110780 A EP82110780 A EP 82110780A EP 82110780 A EP82110780 A EP 82110780A EP 0089408 B1 EP0089408 B1 EP 0089408B1
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EP
European Patent Office
Prior art keywords
air
tunnel
dried
dryer
disposed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82110780A
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German (de)
English (en)
Other versions
EP0089408A2 (fr
EP0089408A3 (en
Inventor
Eduard Steinacher
Claudio Eustacchio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vogel and Noot Industrieanlagenbau GmbH
Original Assignee
Fuchs & Co GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuchs & Co GmbH filed Critical Fuchs & Co GmbH
Publication of EP0089408A2 publication Critical patent/EP0089408A2/fr
Publication of EP0089408A3 publication Critical patent/EP0089408A3/de
Application granted granted Critical
Publication of EP0089408B1 publication Critical patent/EP0089408B1/fr
Expired legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines 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
    • F26B15/12—Machines 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
    • F26B15/16—Machines 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 the objects or batches of materials being carried by wheeled trucks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/006—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects the gas supply or exhaust being effected through hollow spaces or cores in the materials or objects, e.g. tubes, pipes, bottles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/022—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow
    • F26B21/024—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow by using movable fan units

Definitions

  • the invention relates to a method and a device for carrying out the method according to the first part of claims 1 and 2, respectively.
  • tunnel dryers of the type described above the tunnels of which are a few meters wide and a few meters high, correspondingly large wagons are conveyed in the longitudinal direction, on which the dry material is deposited in stages.
  • the air necessary to discharge the moisture of the dry material is directed through the tunnel dryer against the direction of movement of the wagons.
  • Dryers are known in which further hot air devices are provided over the length of the dryer tunnel, or in which the air is wholly or partially removed from the dryer tunnel, heated and then fed back in.
  • the air velocity of the dry air through the tunnel dryer of the aforementioned type working in the countercurrent principle is approximately 0.5 to 2.0 m / s, the air moving primarily along the upper cross section of the tunnel due to its heating, so that this is in the lower cross section and in Dried material located in the middle sections of the tunnel dries very slowly.
  • longitudinally movable settling carriages are accommodated, which receive the moldings to be dried, while in the upper mixing room, fans are arranged at regular intervals, each of which has a suction opening for sucking in a drying medium and a suction opening arranged in the partition for sucking in the circulating medium Drying chamber are assigned.
  • the circulation medium heated in the mixing room is fed into the lower part of the drying chamber through side flaps. Since with such continuous aeration of the dry material the water on the surface of the dry material evaporates faster than this can be replenished by the capillaries of the dry material, the dry material begins to dry out more quickly, so that it shrinks on the surface faster than inside. This can cause damage such as cracks, cracks, etc. to the dry goods.
  • tunnel dryers have been developed in which the circulation fans are designed to be movable.
  • Such a tunnel dryer according to the preamble of claim 1 is known from DE-C-416 312.
  • the disadvantage of this tunnel dryer is that the dry air is not drawn in from the upper area of the dryer, where the warm, relatively fresh dry air is located, but from the depth, transverse to the main flow direction of the dry air.
  • the disadvantages of permanent ventilation described above are reduced in this tunnel dryer, the dry material is also washed around primarily on the outer surfaces, so that there is still a considerable difference in moisture between the inside and the outside of the dry material, which can lead to the formation of cracks.
  • the invention is therefore based on the object of providing a method and a device for ventilating dry material according to the generic terms, in which drying is intensified by improved ventilation and the brick blanks are dried uniformly.
  • the large free cross-section available above the dryer and the mostly dry layered dry goods on top of it, through which the dry air moves slowly from the exit side or blowing device to the entry side or suction device has transverse air circulation housings which are arranged are aerodynamically designed and blow the air sucked in by the built-in circulation fan with the help of air baffles across the cavities of the dry material.
  • the air is forced to enter the spaces between and into the dry goods in order to flow through them.
  • the air circulation housings are mounted on movable carriages and are moved forwards and backwards a few meters in the dryer, so that the dry goods are homogeneously loaded through the cavities.
  • the air guiding bodies move in narrow "alleys" between the bricks, so that only a few bricks are blown at once from the left, then from the right.
  • drying is effected evenly and gently in the dry goods, so that the dry goods dry evenly on the outside and inside.
  • the dry air flows through the dryer tunnel relatively slowly, the circulation fan sucks in at the top of the side of the housing opposite the side where the dry hot air flows, so that the moisture gradient can be controlled in accordance with the requirements of the dry material can be done easily.
  • a suitable drying interval can be formed by the advantageous profiling of the circulating housing and air guide bodies and by their ability to be moved in the longitudinal direction, so that the air flows through the drying material alternately from both sides.
  • the circulation housing is designed as a hollow body, internal heating would be conceivable.
  • a tunnel dryer 1 is shown in longitudinal section in a schematic manner.
  • this tunnel dryer 1 has an entry side on the left, which is closed by a gate 2, and on the right side an exit side, which is closed by a gate 3.
  • suction pipe 8 In the area of the entry side there is a suction opening 7 in the upper part of the tunnel dryer 1, which is connected to a suction pipe 8.
  • This suction pipe 8 is connected to a suction device, not shown, which ensures that the air 20 is sucked out of the tunnel dryer 1 as moist exhaust air in the direction of the arrow 9.
  • dryer cars 10 on rails 11 are moved continuously in the direction of arrow 12 by means of a drive (not shown).
  • the dry material 13 On the dryer car 10 is the dry material 13, which is formed in the illustrated embodiments from brick moldings. These bricks have a percentage of holes that can vary from 15 to 60%, depending on the type of brick. The direction of the holes lies at right angles to the transport direction of the dryer car 10.
  • circulation fans 14 with housings 18 and blow-out profiles 19, which can be moved back and forth in the longitudinal direction of the tunnel dryer 1 by means of slides 15 on rails 16.
  • These fans 14 with housing 18 and blow-out profiles 19 can, as shown in the exemplary embodiment according to FIG. 1, be connected to one another by a coupling 17, so that only a common drive is required, or else can be moved independently of one another without a coupling if each unit is above has its own travel drive, not shown in the illustration. Both distances between the individual units and the driving speed can be freely selected.
  • the housing 18 and blow-out profiles 19 are designed as hollow bodies into which the circulation air 21 blown in by the circulation fan 14 is passed between the rows of the dry material and finally blown directly into the holes in the bricks.
  • blow-out profiles 19 can be varied so that a circulating air speed is achieved which ensures a flow through the dry material.
  • the blow-out cross section of the blow-out profiles 19 is further adapted to the height of the dry material 13 in order to blow the dry material 13 over the entire surface.
  • the circulating air 21 will not only wash around the dry material 13 on the surface, but also ventilate the core and thus also from the inside and not just dry from the outside. Intensive drying is targeted by the targeted application of dry air to the dry material.
  • FIG. 2 shows the drying tunnel 1 in cross section with the dryer car 10, which is guided in parallel on the rails 11 and on which the dry goods 13 with the hole direction of the dry goods lie transversely to the transport direction of the dryer cars 10.
  • the fan with housing 18 and blow-out profile 19, which is moved on rails 16 above the dryer carriage 10, is also shown in cross section.
  • the circulating air 21 drawn in by the fan 14 is blown through the housing 18 and further through the blow-out profiles 19 into the holes in the dry material 13.
  • the direction of flow of the hot air is reversed, so that the air flow calms down and is directed downwards to the dry material in a targeted and uniform manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)

Claims (6)

1. Procédé pour la ventilation d'une matière à sécher dans un tunnel de séchage, en particulier pour des ébauches de briques placées en un seul lit qu'on fait passer à travers le sécheur en sens inverse d'un courant d'air, le procédé comprenant qu'on introduit, sous surpression, de l'air chaud de séchage dans le tunnel dans la zone du côté de sortie, qu'on accélère ensuite ledit air de séchage à plusieurs endroits situés l'un après l'autre le long du tunnel et le dirige en même temps, transversalement à la direction principale du courant, vers la matière à sécher, et qu'on l'aspire enfin hors du tunnel dans la zone du côté d'entrée, caractérisé en ce que, si la matière à sécher est munie de canaux d'air, ceux-ci sont disposés transversalement à la direction de passage, de manière que l'air de séchage passe non seulement par les faces extérieures mais aussi à travers les canaux d'air de la matière à sécher, et que l'on aspire l'air de séchage, pour accélérer celui-ci en sens inverse de sa direction principale de courant, de l'espace du sécheur situé au-dessus de la matière à sécher, de manière que l'air soit dirigé en bas vers la matière à sécher.
2. Dispositif pour la réalisation du procédé selon la revendication 1, comprenant un tunnel de séchage (1) ayant une installation à insuffler (4, 5) pour le sec air chaud en tant qu'air de séchage, disposée au côté de sortie, et une installation d'aspiration (7, 8) pour l'air d'échappement humide, disposée au côté d'entrée, et au moins un ventilateur de circulation d'air (14) ayant un boîtier (18) roulant dans le profil en travers libre et le long du tunnel de séchage, ledit boîtier présentant, de tous les deux côtés, des pièces de boîtier s'étendant en bas jusqu'au niveau du fond de la matière à sécher, dans lesquelles sont disposés des orifices de purge qui amènent l'air de séchage à la matière à sécher (13), caractérisé en ce que le boîtier roulant (18) avec son ventilateur (14) est arrangé transversalement dans le tunnel de séchage (1) et au-dessus de la matière à sécher (13) et remplit, avec ses pièces de boîtier s'étendant en bas, le profil en travers libre du tunnel.
3. Dispositif selon la revendication 2, caractérisé en ce que l'orifice d'aspiration du ventilateur de circulation d'air (14) est arrangé au côté du boîtier (18) qui est situé en face du côté, sur lequel souffle le sec air chaud.
4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que plusieurs boîtiers munis de ventilateurs de circulation d'air (14) sont couplés l'un avec l'autre et présentent un appareillage de roulement commun.
5. Dispositif selon l'une quelconque des revendications 2 à 4, caractérisé en ce que les ventilateurs de circulation d'air (14), avec leurs boîtiers (18), sont montés sur des chariots déplaçables (15) ou des installations pareilles.
6. Dispositif selon la revendication 2, caractérisé en ce qu'un chauffage intérieur supplémentaire est arrangé dans le boîtier (18).
EP82110780A 1982-03-23 1982-11-22 Procédé et dispositif pour la ventilation de la matière à sécher dans un tunnel de séchage Expired EP0089408B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3210652 1982-03-23
DE19823210652 DE3210652A1 (de) 1982-03-23 1982-03-23 Verfahren und vorrichtung zur belueftung von trockengut in einem tunneltrockner

Publications (3)

Publication Number Publication Date
EP0089408A2 EP0089408A2 (fr) 1983-09-28
EP0089408A3 EP0089408A3 (en) 1985-03-06
EP0089408B1 true EP0089408B1 (fr) 1987-10-07

Family

ID=6159074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110780A Expired EP0089408B1 (fr) 1982-03-23 1982-11-22 Procédé et dispositif pour la ventilation de la matière à sécher dans un tunnel de séchage

Country Status (3)

Country Link
EP (1) EP0089408B1 (fr)
DE (2) DE3210652A1 (fr)
ES (1) ES8400192A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817972A1 (de) * 1988-05-27 1989-11-30 Erlus Baustoffwerke Verfahren und vorrichtung zum trocknen von lochziegelrohlingen
DE4412353A1 (de) * 1994-04-11 1995-10-12 Keller Gmbh Tunneltrockner zum Trocknen keramischer Formlinge
DE102007062851A1 (de) 2007-11-27 2009-05-28 Robert Thomas Metall- Und Elektrowerke Gmbh & Co. Kg Trockner für gelochte Keramikformlinge

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3840264A1 (de) * 1988-05-27 1990-05-31 Erlus Baustoffwerke Verfahren und einrichtung zum trocknen von lochziegelrohlingen
DE4002643A1 (de) * 1990-01-30 1991-08-08 Meindl Josef Ohg Vorrichtung zum trocknen keramischer produkte, insbesondere ziegel
DE9005787U1 (fr) * 1990-05-21 1990-08-02 Roesler, Manfred, 7343 Kuchen, De
DE4412352C2 (de) * 1994-04-11 1998-04-30 Keller Gmbh Tunneltrockner zum Trocknen keramischer Formlinge
DE59501238D1 (de) * 1994-04-11 1998-02-19 Keller Gmbh Formlingsträger für zu trocknende keramische Formlinge, wie Hochlochziegel
DE19527415A1 (de) * 1995-07-27 1997-01-30 Wagner Max Novokeram Verfahren und Vorrichtung zum Trocknen von keramischen Formlingen
DE29721763U1 (de) * 1997-12-10 1999-04-08 Wagner Max Novokeram Trockeneinrichtung für hohle keramische Formlinge
DE102008013012B4 (de) * 2008-03-07 2010-08-12 Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co. Kg Tunneltrockner zum Trocknen von Formlingen, mit in Querabständen einander gegenüberliegend angeordneten Lufteinlässen
FR2940830A1 (fr) * 2009-01-08 2010-07-09 Keyria Procede de ventilation destine a assurer le sechage de produits dans un sechoir et sechoir pour la mise en oeuvre de ce procede
CN102954673B (zh) * 2011-08-31 2015-06-24 烟台龙源电力技术股份有限公司 一种利用气体进行物料干燥的干燥装置
ITUB20153865A1 (it) * 2015-09-17 2017-03-17 Stefano Capaccioli Essicatoio ad alta velocita' per laterizi e procedimento per la loro produzione
CN114294931A (zh) * 2021-11-16 2022-04-08 长沙汉创新材料科技有限公司 一种干燥机
CN115143746B (zh) * 2022-07-25 2023-05-12 广东技术师范大学 一种大功率模组生产堆叠式热烘除湿装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE416312C (de) * 1921-09-12 1925-07-13 Pilade Barducci Trockenkammer
FR1191253A (fr) * 1957-02-20 1959-10-19 Installation de séchage
AT283215B (de) * 1968-05-03 1970-07-27 Eisenmann Kg Machinenbau Ges Durchlauftrockner
DE1927839A1 (de) * 1969-05-31 1970-12-03 Meierling Dipl Ing Heinrich Wi Trockenanlage fuer keramische,insbesondere grobkeramische Erzeugnisse
DE2251617C3 (de) * 1972-10-20 1975-05-07 Keller Ofenbau Gmbh, 4533 Laggenbeck Trockner für keramische Erzeugnisse, insbesondere Ziegelformlinge
DE2320600B2 (de) * 1973-04-24 1975-07-10 Werner 8521 Neunkirchen Strohmenger Trocknungsvorrichtung für Keramikwaren
AT325494B (de) * 1973-06-19 1975-10-27 Leitl Werke Bauhuette Verfahren zum trocknen von hohl- bzw. lochziegelformlingen und vorrichtung zur durchführung des verfahrens
DE2549696A1 (de) * 1975-11-06 1977-05-12 Thater Kg Duesenlueftergeraet zur trocknung von keramischen rohlingen
DE2828247A1 (de) * 1978-06-28 1980-01-03 Rolf Pfisterer Durchlauf-trockenofen fuer holz
FR2480921A1 (fr) * 1980-04-18 1981-10-23 Duc Francois Procede et dispositif de deshydratation a inversion de flux
DE3049162A1 (de) * 1980-12-24 1982-07-15 Keramikindustrieanlagen W.Strohmenger GmbH & Co KG, 8524 Neunkirchen Trocknungsvorrichtung fuer keramikwaren
US4357762A (en) * 1981-02-24 1982-11-09 Fuchs & Co. Aktiengesellschaft Fur Elektrodraht-Erzeugung Und Maschinenbau Apparatus for controlling the ventilation effect on material dried in a tunnel drying plant

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817972A1 (de) * 1988-05-27 1989-11-30 Erlus Baustoffwerke Verfahren und vorrichtung zum trocknen von lochziegelrohlingen
DE4412353A1 (de) * 1994-04-11 1995-10-12 Keller Gmbh Tunneltrockner zum Trocknen keramischer Formlinge
DE102007062851A1 (de) 2007-11-27 2009-05-28 Robert Thomas Metall- Und Elektrowerke Gmbh & Co. Kg Trockner für gelochte Keramikformlinge
EP2065664A2 (fr) 2007-11-27 2009-06-03 Robert Thomas Metall- und Elektrowerke GmbH & Co. KG Séchoir pour ébauches de céramique perforées

Also Published As

Publication number Publication date
EP0089408A2 (fr) 1983-09-28
DE3277450D1 (en) 1987-11-12
DE3210652A1 (de) 1983-10-06
ES518165A0 (es) 1983-10-16
ES8400192A1 (es) 1983-10-16
EP0089408A3 (en) 1985-03-06
DE3210652C2 (fr) 1993-03-11

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