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EP0534382A1 - Dispositif d'alimentation d'air sec pour le séchage de balles cylindriques de fourrage - Google Patents

Dispositif d'alimentation d'air sec pour le séchage de balles cylindriques de fourrage Download PDF

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Publication number
EP0534382A1
EP0534382A1 EP92116245A EP92116245A EP0534382A1 EP 0534382 A1 EP0534382 A1 EP 0534382A1 EP 92116245 A EP92116245 A EP 92116245A EP 92116245 A EP92116245 A EP 92116245A EP 0534382 A1 EP0534382 A1 EP 0534382A1
Authority
EP
European Patent Office
Prior art keywords
bales
chamber
dry air
drying
air
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.)
Withdrawn
Application number
EP92116245A
Other languages
German (de)
English (en)
Inventor
Gabriele Muzzarelli
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.)
INVENTA MODENA Srl
Original Assignee
INVENTA MODENA Srl
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 INVENTA MODENA Srl filed Critical INVENTA MODENA Srl
Publication of EP0534382A1 publication Critical patent/EP0534382A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/10—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof
    • F26B9/103—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in the open air; in pans or tables in rooms; Drying stacks of loose material on floors which may be covered, e.g. by a roof using fixed or removable drying air channels placed in the stack, e.g. horizontally or vertically
    • 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
    • F26B21/007—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 the objects being bobbin- or spool-like bodies

Definitions

  • the present invention relates to a dry air conveyance device for drying round forage bales.
  • cylindrical or parallelepipedal forage bales are currently very widespread in the haymaking sector.
  • Said cylindrical bales also known as round bales, are obtained by means of suitable presses which roll up the green forage when it is picked, allowing a considerable reduction in costs.
  • Said presses furthermore allow to appropriately differentiate the density of the forage inside the bale.
  • it is possible to provide higher density in the outer region, in order to have greater strength and waterproofing, and vice versa lower density in the inner core.
  • the forage is picked and baled with a relatively high degree of humidity which can vary according to the weather conditions, i.e. a degree which exceeds the value required for optimum preservation (approximately 20-25%).
  • High humidity causes the onset of fermentation processes which degrade the quality of the hay, reduce its nutritional value and also cause heavy losses in the amount of hay obtained.
  • known drying units substantially have a bed having modular plates provided with a central hole, at which the bale to be dried is placed.
  • a stream of warm air, produced by a centrifugal fan connected to the bed, is delivered through said hole.
  • the proposed solutions have not yielded fully satisfactory results.
  • the drying of the bale is significantly non-uniform, and thus entails the risk of fermentation effects, in the case of round bales having a relatively high degree of average humidity (for example more than 40%).
  • the aim of the present invention is to solve the above problem by providing a device for the conveyance of dry air which allows to obtain an optimum drying of round forage bales.
  • a further object of the present invention is to provide a conveyance device for drying round forage bales which is simple in concept, limited in bulk, safely reliable in operation and versatile in use.
  • the present device for the conveyance of dry air for drying round forage bales characterized in that it comprises a flattened chamber feedable with dry air and having, along the same axis, an upper air outlet and a lower air outlet, said chamber being intended to rest, on its opposite sides, against the lower and upper surfaces of respective stacked forage bales which are spaced by a plurality of said conveyance devices.
  • the reference numeral 1 generally designates the apparatus for drying round forage bales 2.
  • the apparatus 1 has a lower ventilation chamber 3 suitable to be fed with the dry warm air produced, in a known manner, by heating elements 4 provided with appropriate blower means.
  • the ventilation chamber 3 has, in a modular manner, a plurality of outlets 5 for the warm air; the outlets 5 have an edge which protrudes with respect to the plane of the chamber 3.
  • a plurality of conveyance devices 6 for the dry and warm air are arranged at each one of the outlets 5 of the chamber 3 so that said devices are mutually superimposed and parallel.
  • the conveyance devices 6 respectively have an upper outlet 7 and a lower outlet 8 which are coaxial, in the assembled position, to the underlying outlet 5 of the chamber 3.
  • the conveyance devices 6 are fed in parallel by means of a duct 9 extending vertically from the lower ventilation chamber 3.
  • each conveyance device 6 is constituted essentially by a chamber 10 having a flattened shape and has, on one side, a coupling 11 for connection to the duct 9 for the delivery of the warm, dry air.
  • the chamber 10 has, on its opposite faces, along the same axis, the air outlets 7 and 8; said outlets 7 and 8 similarly have a circular edge 12 which protrudes with respect to the respective face of the chamber 10.
  • outlets 5 of the ventilation chamber 3 are substantially equivalent, from a functional and constructive point of view, to the upper outlets 7 of the conveyance devices 6.
  • each conveyance device 6 is intended to rest, on opposite sides, against the upper surface and the lower surface of respective forage bales 2 which are arranged in a stack and are spaced by a plurality of said conveyance devices. It is thus possible to deliver the dry air from the outlets 7 and 8 of the conveyance devices 6 to both ends of the forage bales 2.
  • the facing surfaces of the chambers 10 of the conveyance devices prevent the escape of the drying air from both of the resting bases of the stacked bales 2.
  • the same result is obviously obtained both with cylindrical forage bales and with parallelepipedal ones.
  • the conveyance device 6 furthermore allows mutual spacing between the stacked forage bales 2 in order to create a compression chamber whose pressure is constantly equal to that of the lower ventilation chamber 3.
  • the conveyance device is therefore isobaric.
  • the conveyance devices are sized so that the airflows of drying air substantially follow paths of equal length, so as to provide the uniform distribution of the warm and dry air in the mass of the bale.
  • a stack of soft-core cylindrical bales behaves essentially like a tube whose lateral surface is permeable and through which the drying air escapes uniformly. It is noted that the layer crossed by the air has a limited extent and that the pressure is substantially constant along the axis of the stack of forage bales.
  • the described isobaric conveyance device allows to optimally dry round bales of forage picked humid (even with a degree of humidity of over 40-50%), ensuring uniformity in drying (18-20% of relative humidity) or dehydration (10% of relative humidity).
  • the difference in uniformity inside the bales is reduced by at least 50% with respect to the conventional method.
  • conveyance devices according to the invention allow to dry the bales in multiple superimposed layers, with a drastic reduction in the space required by the apparatus. This reduced bulk furthermore allows the conveyance devices to be employed on mobile structures.
  • the isobaric conveyance device finally allows to avoid wastes of energy, since the drying action may be performed only for the time actually required and there are no leaks of warm and dry air between the bases of the bales and said conveyance devices.
  • the materials employed, as well as the shapes and dimensions, may be any according to the requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Storage Of Harvested Produce (AREA)
EP92116245A 1991-09-26 1992-09-23 Dispositif d'alimentation d'air sec pour le séchage de balles cylindriques de fourrage Withdrawn EP0534382A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO910143 1991-09-26
ITMO910143A IT1253477B (it) 1991-09-26 1991-09-26 Dispositivo collettore di aria asciutta per l'essicazione di rotaballe di foraggio

Publications (1)

Publication Number Publication Date
EP0534382A1 true EP0534382A1 (fr) 1993-03-31

Family

ID=11385057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92116245A Withdrawn EP0534382A1 (fr) 1991-09-26 1992-09-23 Dispositif d'alimentation d'air sec pour le séchage de balles cylindriques de fourrage

Country Status (2)

Country Link
EP (1) EP0534382A1 (fr)
IT (1) IT1253477B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997040330A1 (fr) * 1996-04-23 1997-10-30 Farmer Engineering Gesellschaft Mbh Appareil de sechage de bottes cylindriques et/ou parallelepipediques de fourrage humide
FR2820814A1 (fr) 2001-02-09 2002-08-16 Giovanni Beltrame Procede, dispositif et installation de dessiccation de produits conditionnes tels que des balles de fourrage
US6988325B2 (en) 2004-03-29 2006-01-24 Agriculture & Agro-Food Canada Bidirectional forage bale dryer and method of operation
EP2465338A1 (fr) * 2010-12-09 2012-06-20 LASCO Heutechnik GmbH Dispositif de séchage

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB357972A (en) * 1930-06-20 1931-09-21 Glanzstoff Courtaulds Gmbh Improvements relating to methods of and apparatus for drying artificial silk cakes
FR718638A (fr) * 1931-06-15 1932-01-27 Anciens Etablissements Burghar Procédé et dispositif pour sécher le lin sous forme de bobines croisées
US1896609A (en) * 1932-03-14 1933-02-07 American Glanzstoff Corp Apparatus for filament treatment
FR895497A (fr) * 1943-06-11 1945-01-25 Perfectionnement aux procédés de séchage et conditionnement des bobines croisées de textiles
BE565251A (fr) * 1958-02-28 1958-03-15
US3097515A (en) * 1963-07-16 Seal for yarn package treating apparatus
DE2007296A1 (de) * 1970-02-18 1971-08-26 Josef Bautz Gmbh, 7968 Saulgau Verfahren und Vorrichtung zum Trock nen von Erntegut
US4182049A (en) * 1976-01-12 1980-01-08 Lestraden Jacobus J W Method and apparatus for the conditioning of products
EP0325675A1 (fr) * 1988-01-29 1989-08-02 Vigilio Mich Système de séchage de foin

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097515A (en) * 1963-07-16 Seal for yarn package treating apparatus
GB357972A (en) * 1930-06-20 1931-09-21 Glanzstoff Courtaulds Gmbh Improvements relating to methods of and apparatus for drying artificial silk cakes
FR718638A (fr) * 1931-06-15 1932-01-27 Anciens Etablissements Burghar Procédé et dispositif pour sécher le lin sous forme de bobines croisées
US1896609A (en) * 1932-03-14 1933-02-07 American Glanzstoff Corp Apparatus for filament treatment
FR895497A (fr) * 1943-06-11 1945-01-25 Perfectionnement aux procédés de séchage et conditionnement des bobines croisées de textiles
BE565251A (fr) * 1958-02-28 1958-03-15
DE2007296A1 (de) * 1970-02-18 1971-08-26 Josef Bautz Gmbh, 7968 Saulgau Verfahren und Vorrichtung zum Trock nen von Erntegut
US4182049A (en) * 1976-01-12 1980-01-08 Lestraden Jacobus J W Method and apparatus for the conditioning of products
EP0325675A1 (fr) * 1988-01-29 1989-08-02 Vigilio Mich Système de séchage de foin

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GB-A-P201 (STONE) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997040330A1 (fr) * 1996-04-23 1997-10-30 Farmer Engineering Gesellschaft Mbh Appareil de sechage de bottes cylindriques et/ou parallelepipediques de fourrage humide
AU722372B2 (en) * 1996-04-23 2000-08-03 "Farmer" Engineering Gesellschaft Mbh Apparatus for drying cylindrical and/or parallelepiped bales of moist forage
US6154977A (en) * 1996-04-23 2000-12-05 Framer Engineering Gesellschaft M.B.H. Apparatus for drying cylindrical and/or parallelepiped bales of moist forage
FR2820814A1 (fr) 2001-02-09 2002-08-16 Giovanni Beltrame Procede, dispositif et installation de dessiccation de produits conditionnes tels que des balles de fourrage
US6988325B2 (en) 2004-03-29 2006-01-24 Agriculture & Agro-Food Canada Bidirectional forage bale dryer and method of operation
EP2465338A1 (fr) * 2010-12-09 2012-06-20 LASCO Heutechnik GmbH Dispositif de séchage

Also Published As

Publication number Publication date
ITMO910143A1 (it) 1993-03-26
ITMO910143A0 (it) 1991-09-26
IT1253477B (it) 1995-08-08

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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