EP0194293A1 - Element a paroi pour sechoirs de produits a pate alimentaire. - Google Patents

Element a paroi pour sechoirs de produits a pate alimentaire.

Info

Publication number
EP0194293A1
EP0194293A1 EP85904621A EP85904621A EP0194293A1 EP 0194293 A1 EP0194293 A1 EP 0194293A1 EP 85904621 A EP85904621 A EP 85904621A EP 85904621 A EP85904621 A EP 85904621A EP 0194293 A1 EP0194293 A1 EP 0194293A1
Authority
EP
European Patent Office
Prior art keywords
pasta
dryer
dryer according
wall element
vapor barrier
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
EP85904621A
Other languages
German (de)
English (en)
Other versions
EP0194293B1 (fr
Inventor
Hermann Zwyssig
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.)
Buehler AG
Original Assignee
Buehler AG
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
Priority claimed from CH4372/84A external-priority patent/CH663274A5/de
Application filed by Buehler AG filed Critical Buehler AG
Publication of EP0194293A1 publication Critical patent/EP0194293A1/fr
Application granted granted Critical
Publication of EP0194293B1 publication Critical patent/EP0194293B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/06—Chambers, containers, or receptacles
    • F26B25/08—Parts thereof
    • F26B25/12—Walls or sides; Doors

Definitions

  • the invention relates to a pasta dryer with an insulation casing comprising the dryer, the side parts of which consist of individual wall elements which are curved outwards and can be braced in their edge regions against frame parts of the dryer.
  • the insulation formwork of pasta dryers has to meet different requirements. On the one hand, this is to prevent significant energy from being released into the environment through the casing. A good insulation effect of a formwork also means that there are correspondingly large temperature differences between the innermost and outermost skin of the formwork, which leads to different thermal expansions on the formwork. In order to prevent air gaps from forming between the wall elements, it is known to cover their joints with sealing tapes. With this solution, however, this can mean that, under extreme conditions, the wall elements can only be reattached after a long period of service work using additional sealing material. If, as is often the case today, flat panels are used for wall elements, the problem shown turns out to be even more unfavorable because the shape stability of these panels is lower.
  • wall elements In order to achieve better dimensional stability on the wall elements, wall elements have already been used which have a slight curvature in their central area (large radius) and a greater curvature (smaller radius) at their edge areas (lower and upper end areas) were provided, whereby an improved dimensional stability could be achieved there. With these wall elements, however, there is the risk that, not least because of the different curvature of the wall elements, there will be uneven stress distributions over the overall cross section of the wall elements when larger temperature differences occur, and thus the risk of crack formation occurring.
  • the object of the invention is to equip a pasta dryer with such insulation casing that, even when there are large temperature differences between the inside of the dryer and the surroundings of the dryer, the tension distribution over the overall cross-section of the wall elements is evened out and there is therefore a reduced risk of cracks occurring leads.
  • this object is achieved in the case of a pasta dryer of the type mentioned at the outset in that the wall elements are curved in the shape of a cylinder section and the associated frame parts are designed accordingly.
  • the measures according to the invention also lead to a surprisingly dimensionally stable behavior of the wall elements even when there is a strong change in temperature and large temperature differences, and that the risk of undesirable crack formation is clearly reduced as a result of a noticeable equalization of the stress distribution over the surface of the wall elements could be.
  • the pasta dryer according to the invention also always had a very good sealing contact of the wall elements on the associated frame parts, even if larger temperature differences occurred.
  • the use of additional sealing tapes can be completely dispensed with here in the invention, which is practically impossible with known dryers and which also means that the need to be renewed Seals can be omitted after performing service work. It has proven to be advantageous if the wall elements are provided with a uniform wall thickness over their entire surface.
  • the wall elements are preferably connected as a vapor barrier on their side facing the inside of the dryer with a plate, again preferably made of thin sheet metal, loosely inserted into the arch shape.
  • a plate again preferably made of thin sheet metal, loosely inserted into the arch shape.
  • a 0.5 to 1 mm thick plate made of, for example, stainless steel sheet can be inserted without a rigid attachment on the inside of the respective wall element.
  • a sheet steel plate proves to be an effective vapor barrier, and when inserted, it adapts easily and completely automatically to the curvature of the wall element, since it has a corresponding flexibility over its entire area.
  • the holder only has to ensure that the inserted steel plate is approximately in its outer circumference in sufficient shape is held against the wall element so that it cannot fall off from it again.
  • This can be done in the invention, for example, in a particularly advantageous manner in that such a wall element is provided on its entire outer circumference on its inside (ie the side of the wall element facing the inside of the dryer) with a profile seal, for example a rubber profile, which is arranged so that it supports the plate-shaped vapor barrier against the wall element.
  • the plate-shaped vapor barrier has such a profile seal, for example a rubber seal, 1 does not protrude laterally (ie that the rubber seal is arranged around the edge area of the wall element in such a way that the plate-shaped vapor barrier in its peripheral edge area with its side edges does not extend beyond the area covered by the seal. ⁇ - closed area protrudes). Since the vapor barrier in the holder only engaged, but not with this rigidly to be connected against the wall element, since thereby binding any solid (rigid) Ver ⁇ exists between • vapor barrier and wall element, the vapor barrier may also independent of the wall member under the influence of temperature 0 without The occurrence of undesirable constraint stresses stretch or contract and is still held sufficiently well by the profile seal against the wall element. The occurrence of undesired forced stresses can be almost completely avoided, which is a very important advantage over 5 known designs.
  • a further advantageous embodiment of the invention is that the wall elements consist of foam or another insulation material which has a resistant outer skin, the outer skin of the wall element facing the dryer interior being provided with one or more grooves.
  • the grooves for example in the form of two to six fingers arranged deeply on the surface, not only result in a further consolidation of the shape in question.
  • Wand ⁇ element but they also allow a reduction 5 of the occurring changes in length of the outer dimensions on the inside of the wall (for example by higher temperatures), which can be achieved that almost no undesirable thermal stresses occur. Since these grooves are completely covered by the vapor barrier (metal sheet), they do not create any dirt traps, which also allows such a dryer to be cleaned quickly and thoroughly.
  • each wall element is hung on its top by hinges 5 and can be pressed against the corresponding frame parts by tensioning elements arranged on its underside, it being particularly advantageous if the hinges are each directly (vertically) above Clamping elements are arranged.
  • This allows a further practical practical handling when carrying out maintenance work.
  • due to the weight of the respective outwardly curved wall element it already lies well against the corresponding frame parts of the pasta dryer without additional force.
  • the tensioning elements By means of the tensioning elements, a completely tight seal on the entire circumference of the vapor barrier (wall element) can be ensured with only slight deformation of the sealing profile and thereby even with slight manufacturing inaccuracies.
  • Each wall element is preferably assigned a support arm which is attached to the frame part and can be folded down. If cleaning or other service work is to be carried out, two or three quick-release fasteners can be opened quickly with just a few hand movements, the wall element pulled down with one hand and the support arm holding it in an open position with the other hand into the desired position to be brought. In this way, downtimes can be significantly reduced compared to known solutions.
  • the wall elements are designed with the same wall thickness over their entire surface. Since a vapor barrier can be inserted on the inside, the wall elements can be selected independently of the vapor barrier in accordance with the other requirements in terms of their qualitative structure and the thickness of the insulation material.
  • Figure i is a perspective view of a pasta dryer according to the invention.
  • FIG. 2 shows an interior view of a wall element in a pasta dryer according to the invention
  • FIG. 3 shows a schematic side view of an insulation casing in a pasta dryer according to the invention
  • FIG. 5 shows the section V-V from FIG. 2.
  • the typical pasta dryer i shown in FIG. I has an open front end.
  • Conveying means (not shown), such as bar transport systems, a belt or vibration conveyor, etc., are to be arranged in its interior, but are not shown in the drawing for the sake of clarity. In Figure i, only three superimposed conveyor floors are shown. One each
  • Air distribution space 2 and 3 extend over the entire length of the
  • Pasta dryer 1 On both sides of the same are through a
  • the pasta dryer 1 is surrounded at the top and bottom by flat insulation plates 8 and 9 and laterally by bulging wall elements 10, the latter having an arcuate shape in the form of a cylindrical section (ie they are curved with a constant radius over the height).
  • the wall elements 10 are fastened at the top to the frame parts 13 by two hinges 11 in each case (a frame part 13 lying at the front and adapted to the curvature of the wall element 10 is only shown in broken lines in FIG. 1).
  • the wall elements 10 can be pressed against the frame parts 13 provided there by two quick-action fasteners 12, so that each wall element that can be opened upwards like a door can also be easily pivoted outwards again after the quick-release fasteners 12 have been released.
  • the frame elements 13 are all of the corresponding shape of the wall elements 10 adapted. While this in the frame parts 13 running from top to bottom, as shown in broken lines in FIG. 1, corresponds to one of the inner curvature of the wall element 10
  • Curvature of the frame part 13 leads there, this means for the frame parts 13 located below in the longitudinal direction of the dryer that their end edges, to which the wall elements 10 are pressed down, have a shape adapted to the curvature, at least over the edge surface.
  • the wall element 10 in question can be easily held in the open position, as shown in FIG. Cleaning, service and inspection work can then be carried out in the interior of the pasta dryer 1 without hindrance. It is then easy to reclose quickly.
  • FIG. 2 shows a wall element 10 in a view from the inside of the dryer.
  • a rubber profile seal 15 runs around the outside of the wall element along the outer edge of the inner surface and is held in place by means of a holding plate 16 (cf. FIGS. 4 and 5).
  • Three horizontal grooves 17 ensure that undesirable thermal expansion between the inner skin 18 and the outer skin
  • the wall element 10 has an insulating material in its interior
  • a metal plate 21, which is held by the sealing profile 15 and is loosely placed in a receptacle holder on the inner curvature of the wall element 10, is provided (FIGS. 4 and 5), which serves as a vapor barrier and in particular also represents a shield against the temperature of the interior of the dryer.
  • the vapor barrier 21 extends between the seal 15 and the outer skin 18 and is pressed against the outer skin 18 by the seal 15, which in turn is carried by a holding bracket 16 fastened to the wall element 10. As a result, a sufficiently firm bracket is achieved
  • the metal plate 21 also does not protrude laterally from the rubber seal 15, ie towards the side of the rubber seal 15 that is not the one enclosed by the rubber seal 15 Area of the metal plate facing: this is
  • the reference symbol R is used to indicate that the curvature of the wall element has an equal radius R (of, for example, 1 to 3 m) over its entire height. Even with large temperature differences of up to 100 ° C. or more, length changes occurring in the holding element can change the size of this radius R almost does not change, as a result of which the plate 21 is always kept in a completely sealed position via the hinges 11 and the quick-release fasteners 12.
  • the embodiment of a dryer shown in the figures has a surprisingly high dimensional stability both in the cold and in the hot state.
  • the metal plate 21 has proven to be a completely perfect vapor barrier and there is almost no air loss even with slight air pressure inside the pasta dryer.
  • the pasta dryer shown can be cleaned almost optimally and also has a particularly pleasing shape on the outside.
  • the invention also includes a method for the simple and effective lining of the wall elements with a vapor barrier by loosely inserting a thin, vapor-impermeable sheet or other suitable thin, flexible, plate-shaped material into an edge holder attached to the inside of the wall element (with the effect that this thin vapor barrier adapts itself to the curvature of the holding element and can move freely within the holder even under the influence of temperature, although it is otherwise well held by the holder).
  • This makes it possible for the first time to produce an edge element with an effective vapor barrier in a cost-effective, quick and simple manner and without the occurrence of undesirably large forced stresses at large temperature differences and the risk of crack formation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

Dans un séchoir pour produits à pâte (1) doté d'une enveloppe isolante qui entoure le séchoir, et dont les éléments latéraux sont composés d'éléments de paroi latéraux (10) extérieurement convexes pouvant être serrés dans leurs régions périphériques contre des sections de cadre (13) du séchoir, les éléments de paroi (10) sont dessinés avec un profil convexe en forme de section de cylindre, et les sections de cadre correspondantes (13) sont dotées d'une forme qui s'y adapte.
EP85904621A 1984-09-13 1985-09-09 Element a paroi pour sechoirs de produits a pate alimentaire Expired - Lifetime EP0194293B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH4372/84A CH663274A5 (en) 1984-09-13 1984-09-13 Farinaceous-product dryer with outwardly rounded wall elements
CH4372/84 1984-09-13
DE19843439860 DE3439860A1 (de) 1984-09-13 1984-10-31 Teigwarentrockner mit einer den trockner umfassenden isolationsverschalung
DE3439860 1984-10-31

Publications (2)

Publication Number Publication Date
EP0194293A1 true EP0194293A1 (fr) 1986-09-17
EP0194293B1 EP0194293B1 (fr) 1990-08-29

Family

ID=25695301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85904621A Expired - Lifetime EP0194293B1 (fr) 1984-09-13 1985-09-09 Element a paroi pour sechoirs de produits a pate alimentaire

Country Status (4)

Country Link
US (1) US4774773A (fr)
EP (1) EP0194293B1 (fr)
JP (1) JPH0692868B2 (fr)
WO (1) WO1986001883A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH665018A5 (fr) * 1985-07-10 1988-04-15 Luxia Limited Enceinte pour le sechage des pates alimentaires et produits analogues.
US5447003A (en) * 1990-05-17 1995-09-05 Warren; Russell D. Method and apparatus for insulating a lumber kiln
US5138773A (en) * 1990-12-05 1992-08-18 U.S. Natural Resources, Inc. Drying kiln for lumber having insulation
JPH06309549A (ja) * 1993-04-20 1994-11-04 Fuji Electric Co Ltd 自動販売機の電照板取付装置
DE10045878A1 (de) * 2000-09-14 2002-03-28 Buehler Ag Doppelhüllen-Trockner
US7481007B2 (en) * 2002-04-05 2009-01-27 Buhler Ag Sealing arrangement
USD514265S1 (en) * 2002-11-29 2006-01-31 Metso Paper, Inc. Dryer of a web-like product, such as a paper web
DE102004056404B4 (de) * 2004-11-23 2019-05-09 Dürr Systems Ag Trockner
DE202004021146U1 (de) 2004-12-22 2006-12-21 Dürr Systems GmbH Elektrotauchlackieranlage
DE102006030334A1 (de) * 2006-06-30 2008-01-03 Dürr Systems GmbH Trocknermodul für einen Trockner
DE102006055297A1 (de) 2006-11-23 2008-05-29 Dürr Systems GmbH Werkstückträger zum Fördern eines zu lackierenden Werkstücks
US20100071225A1 (en) * 2008-09-19 2010-03-25 Shannon Ross Portable cooler drying frame
CA2762445A1 (fr) * 2011-02-10 2012-08-10 Michael Kloepfer Rechaud pour vehicule a conteneur de materiaux en vrac
US9958206B1 (en) * 2014-12-19 2018-05-01 Arron Duvall Curing oven
CN105698519A (zh) * 2016-03-05 2016-06-22 何朝武 一种带有语音提示功能的烘干系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE490478C (de) * 1930-01-29 Heinrich Rackebrandt Aus Metall hergestellte Tueren, Schieber oder Verschlusse fuer Trockenanlagen und andere OEfen
DE87515C (fr) * 1895-05-23 1896-07-03
US1891802A (en) * 1929-02-02 1932-12-20 William F Drew Oven
DE1080487B (de) * 1956-03-03 1960-04-21 Buehler Ag Geb Trockner, insbesondere fuer Teigwaren
CH368424A (de) * 1958-10-27 1963-03-31 Buehler Ag Geb Trocknerwand aus wasserdurchlässigen Isolierplatten
US3149477A (en) * 1963-01-29 1964-09-22 Henry H Bivins Vegetable produce cooler
JPS5020079U (fr) * 1973-06-20 1975-03-06
US4254960A (en) * 1979-06-18 1981-03-10 Parker-Hannifin Corporation Sealing device
FR2523708A1 (fr) * 1982-03-18 1983-09-23 Bassano Co Panneau isolant pour sechoirs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8601883A1 *

Also Published As

Publication number Publication date
WO1986001883A1 (fr) 1986-03-27
EP0194293B1 (fr) 1990-08-29
US4774773A (en) 1988-10-04
JPS62501028A (ja) 1987-04-23
JPH0692868B2 (ja) 1994-11-16

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