EP1088193A1 - Sechoir a grain et a matieres granulaires en general - Google Patents

Sechoir a grain et a matieres granulaires en general

Info

Publication number
EP1088193A1
EP1088193A1 EP99929143A EP99929143A EP1088193A1 EP 1088193 A1 EP1088193 A1 EP 1088193A1 EP 99929143 A EP99929143 A EP 99929143A EP 99929143 A EP99929143 A EP 99929143A EP 1088193 A1 EP1088193 A1 EP 1088193A1
Authority
EP
European Patent Office
Prior art keywords
conveyor means
chamber
screw conveyor
vertical
horizontal
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
EP99929143A
Other languages
German (de)
English (en)
Other versions
EP1088193B1 (fr
Inventor
Silvano Barbieri
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.)
Agrex SpA
Original Assignee
Agrex SpA
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 Agrex SpA filed Critical Agrex SpA
Priority to SI9930636T priority Critical patent/SI1088193T1/xx
Publication of EP1088193A1 publication Critical patent/EP1088193A1/fr
Application granted granted Critical
Publication of EP1088193B1 publication Critical patent/EP1088193B1/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
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
    • F26B9/08—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements
    • F26B9/082—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements mechanically agitating or recirculating the material being dried
    • F26B9/087—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers including agitating devices, e.g. pneumatic recirculation arrangements mechanically agitating or recirculating the material being dried the recirculation path being positioned outside the drying enclosure

Definitions

  • a screw conveyor is disposed along the central vertical axis of the drying chamber into which the bulk grain is loaded.
  • the moist material is picked up from the base by the screw conveyor and is carried to the top of the screw, so that the material is caused to circulate inside the drying chamber in order to bring about movements of material which accelerate the drying process and render it uniform.
  • Screw conveyors disposed vertically inside the cylindrical drying chamber have some disadvantages, one of which is connected with their bulk which limits the useful volume of the drying chamber.
  • the object of the present invention is to provide an improved, high-performance drier which can make maximum use of the volume of its drying chamber. This object is achieved, according to the present invention by a drier having the characteristics set forth in
  • Figure 1 is a partially-sectioned, side elevational view of a drier according to the present invention
  • Figure 2 is a partially-sectioned, perspective view of a detail of the drier of Figure 1. Best mode of carrying out the invention
  • the drier 1 comprises a drying chamber, generally indicated 10, which is composed of a cylindrical, main, upper portion 10a and a frustoconical, hopper-like lower portion 10b which terminates in an output opening 11 closable by a horizontal sliding shutter plate 11a.
  • the chamber 10 is mounted on wheels 12 so that the drier is mobile and can be transported to the vicinity of the harvesting location where drying is performed. Beneath the output opening 11, and hence outside the chamber 10, there is a horizontal screw conveyor, generally indicated 14.
  • the horizontal conveyor 14 comprises an internal screw in which it is possible to distinguish a first, central portion 14a oriented so as to transport the material coming from the output opening 11 in a radially outward direction (as indicated by the arrow A) towards the periphery of the chamber, where the screw conveyor 14 is coupled to a vertical screw conveyor 15.
  • the vertical conveyor 15 extends parallel to the central vertical axis X of the chamber and extends vertically from the base of the chamber to a point situated above the top of the chamber 10. At the top of the vertical screw conveyor 15 there is an inclined outlet duct 19 along which the material which comes out of the vertical conveyor 15 can fall into the chamber 10 or to the exterior during the discharge (emptying) of the drier.
  • the horizontal screw conveyor 14 is extended externally and radially beyond the point of coupling with the vertical conveyor 15, forming a second portion or outer appendage 14b; in this second portion, the spirals of the screw 14 are oriented in opposition to those of the first, central portion, that is, so as to transport material from the exterior towards the point of coupling with the vertical screw conveyor (as indicated by the arrow B in Figure 1) .
  • a heating unit is also provided for producing hot air and admitting it to the drying chamber to promote evaporation of the moisture contained in the grain.
  • the drier according to the present invention operates as follows .
  • the moist material is loaded onto the loading conveyor 17 where it reaches the end 17a and falls by gravity into the outer appendage 14b of the horizontal screw.
  • a box-like container 22 surrounds the end 17a laterally in order to direct the moist grain into the appendage 14b, preventing it from being dispersed.
  • the forced supply by means of the vertical screw 15 prevents stagnation or partial rejection of the grain during the initial drying stage (moist grain) and a consequent reduction in the recirculation rate.
  • the mixing and recirculation cycle then continues normally by means of the vertical conveyor 15, the upper outlet duct 19, the drying chamber 10, and the portion 14a of the horizontal screw conveyor .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Cereal-Derived Products (AREA)
  • Polyurethanes Or Polyureas (AREA)
EP99929143A 1998-06-18 1999-06-04 Sechoir a grain et a matieres granulaires en general Expired - Lifetime EP1088193B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9930636T SI1088193T1 (en) 1998-06-18 1999-06-04 A drier for grain and granular materials in general

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT98PD000154A ITPD980154A1 (it) 1998-06-18 1998-06-18 Essicatoio per cereali e materiali granulari in genere.
ITPD980154 1998-06-18
PCT/EP1999/003887 WO1999066276A1 (fr) 1998-06-18 1999-06-04 Sechoir a grain et a matieres granulaires en general

Publications (2)

Publication Number Publication Date
EP1088193A1 true EP1088193A1 (fr) 2001-04-04
EP1088193B1 EP1088193B1 (fr) 2004-05-26

Family

ID=11392256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99929143A Expired - Lifetime EP1088193B1 (fr) 1998-06-18 1999-06-04 Sechoir a grain et a matieres granulaires en general

Country Status (8)

Country Link
EP (1) EP1088193B1 (fr)
AT (1) ATE267992T1 (fr)
AU (1) AU4605899A (fr)
DE (1) DE69917637D1 (fr)
ES (1) ES2221392T3 (fr)
IT (1) ITPD980154A1 (fr)
PL (1) PL192884B1 (fr)
WO (1) WO1999066276A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004144313A (ja) * 2002-10-21 2004-05-20 Matsui Mfg Co 粉粒体材料の乾燥装置
TWI447543B (zh) * 2011-09-06 2014-08-01 Mpi Corp Grain picker with multi - take - and - letting structure and its alignment method
CN112797762A (zh) * 2021-01-11 2021-05-14 重庆裕丰米业有限公司 一种稻谷烘干装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2451462A (en) * 1944-04-21 1948-10-19 Yglesias-Paz Adolfo Raul Drying apparatus for coffee beans or the like, comprising a movable agitator and gas circulating means
US3000107A (en) * 1959-02-20 1961-09-19 Edmund C Ryan Agricultural machine for transporting, drying and mixing granular material
US3040443A (en) * 1959-06-10 1962-06-26 Deere & Co Crop dryer
US3557979A (en) * 1968-11-20 1971-01-26 Warren Gene Zortman Grain drying bin
US3889388A (en) * 1970-07-17 1975-06-17 Takeda Chemical Industries Ltd Method of and device for drying small solids
US3766664A (en) * 1972-08-08 1973-10-23 K Burgin Grain circulating system
FR2289860A1 (fr) * 1974-10-29 1976-05-28 Secemia Procede et dispositifs de sechage de substances granulaires
US4065891A (en) * 1976-03-02 1978-01-03 Burgin Kermit H Rotary floor grain bin
EP0015357B1 (fr) * 1979-03-07 1985-12-27 Per Ake Nilsson Appareil pour le séchage du fumier et de produits résiduels similaires
FR2501352A1 (fr) * 1981-03-06 1982-09-10 Bellot Gilbert Sechoir a cereales mobile a recirculation du grain

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9966276A1 *

Also Published As

Publication number Publication date
ES2221392T3 (es) 2004-12-16
DE69917637D1 (de) 2004-07-01
EP1088193B1 (fr) 2004-05-26
WO1999066276A1 (fr) 1999-12-23
PL192884B1 (pl) 2006-12-29
AU4605899A (en) 2000-01-05
ATE267992T1 (de) 2004-06-15
PL344995A1 (en) 2001-11-19
ITPD980154A1 (it) 1999-12-18

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