CA2758408A1 - Perforated air-duct for grains drying tower - Google Patents
Perforated air-duct for grains drying tower Download PDFInfo
- Publication number
- CA2758408A1 CA2758408A1 CA2758408A CA2758408A CA2758408A1 CA 2758408 A1 CA2758408 A1 CA 2758408A1 CA 2758408 A CA2758408 A CA 2758408A CA 2758408 A CA2758408 A CA 2758408A CA 2758408 A1 CA2758408 A1 CA 2758408A1
- Authority
- CA
- Canada
- Prior art keywords
- grains
- faces
- air
- duct
- drying tower
- 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
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
- F26B9/10—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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
- A01F25/22—Ventilating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
- F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
- F26B17/1408—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the gas being supplied and optionally extracted through ducts extending into the moving stack of material
- F26B17/1416—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the gas being supplied and optionally extracted through ducts extending into the moving stack of material the ducts being half open or perforated and arranged horizontally
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
Abstract
PERFORATED AIR-DUCT FOR GRAINS DRYING TOWER, referring to a trough (1) in V form, made-up by two vertical lateral faces (2), united by two converging superior faces (3), the faces being provided with a multiplicity of openings (5), which reduce the grains column between the trough layers (1) in the tower, which increases the drying speed because the grains thickness is finer, consequently reducing the drying time.
Description
PERFORATED AIR DUCT FOR TOWERS OF GRAIN DRIERS
Invention technological sector The grains drying after the harvest and before the storage is a need due to the strongly hydrated by heaps product's characteristic alterations, such as the respiration or oxidation of glycides, intra-cellular fermentations, development of bacteria and fungi, and all noxious effects resulting from.
The present invention belongs, in general way, to the technological sector of grains drying equipments, and, more specifically, refers to a new conception applied to an air-duct for drying towers.
Known state of technique From the state of technique of this technological sector is known a series of modalities of grain driers: the horizontal fixed layer driers, in which the product remains static in a compartment with perforated floor, through which the heated air is blown; column driers, in which the product, distributed in vertical columns of perforated plates, is submitted to air flows perpendicularly to the columns; concurrent flows driers, in which the grains and the air flow in the same direction; counter-current flow driers, in which the grains and the air are moved in opposite directions; grains static driers, which blow hot air in troughs of V form, through which the grains to be dried pass.
Grains drying towers in static driers are provided of air entry and exit ducts, known as troughs, through which the air flow is feed at one end, flows along the air-duct, and exists through the longitudinal opening on the base, passing through the grains mass, continuing in direction of other troughs in parallel. This air is used to hear or cool, and, consequently, dry the grains that pass through the drying tower, as described in the document P1 0.802.885-0, high performance grains drier, of the same demander of the present request.
This previous process describes a drier that conjugates in its drying tower three air flow principles adopted in the drying processes (concurrent, counter-current, and crossed), besides presenting different air flow values from the top of the tower to its base, taking in consideration the grains nature and their behavior during the drying to obtain the process maximum efficiency, and incorporation as well means for the grains loading box homogenizing, hydraulic unloading, and hot air homogenizing.
Novelty and objectives of the invention The present invention was conceived for the use in grains high performance driers, but can also be used in other conventional driers.
The invention proposes the perforation of the troughs on their faces in order to reduce the grains column between the trough layers, which increases the drying speed because the grains thickness is finer, consequently reducing the drying time. In this way, in the same static capacity, the production will be increased up to 100% in comparison to a drier of the same technology.
It is the case of a simple solution that provides a surprisingly new technical effect.
Description of the annexed drawing So that the present invention will be fully understood and taken to practice by any technician in this technological sector, the same will be explained in a clear, concise, and sufficient form to enable its reproduction, having as basis the annexed drawings listed herein below, which illustrate and subsidize the same.
Figure 1: Drawing in perspective of a concretization of the proposed trough, object of the present invention, in which can be seen the openings on its faces, and where the same is operating at the air entrance on the drier.
Figure 2: Drawing in perspective of a concretization of the proposed trough, object of the present invention, in which can be seen the openings on its faces and the same is operating at the air exit on the drier.
Figure 3: Drawing in perspective of a second concretization of the proposed trough, object of the present invention, in which can be seen openings just on its superior faces, and the same was represented operating at the air entry and exit on the drier.
Figure 4: Drawings in cut of the first concretization of the invention, on which are represented the air entry and the corresponding hot air flow, and the air exit, and the used air flow.
Figure 5: Drawing in cut of the second concretization of the invention, in which are represented the air entry and the corresponding hot air flow and the air exit, and the used air flow.
Figure 6: Illustrative drawing in perspective of the troughs assembling in the drier and of the corresponding air flows.
Figure 7: Schematic drawing of the troughs assembled in the drier and of the related air flow directions, in which a= crosses to the left, b=
descending oblique, c= concurrent, d = crosses to the left, e = concurrent, f = counter-current, g = crosses to the right, h = descending oblique, I =
countercurrent, j = crosses to the right, a = crosses to the right, b =
counter-current, c = concurrent, d = crosses to the left, e = descending oblique, f = concurrent, g = crosses to the left, h = concurrent, I = counter-current, j = crosses to the right.
Detailed description of the invention As can be deduced in general from the annexed figures, the perforated air-duct for grains drying towers, object of this descriptive report, refers to a trough (1) in V form, made-up by two vertical lateral faces (2), united by two converging superior faces (3), and closed on one end (4), the faces being provided of a multiplicity of openings (5), which reduce the grains column between the trough layers (1) in the tower (figures 6 and 7), which increases the drying speed because the grains thickness is finer, consequently reducing the drying time.
One first concretization of the invention is represented in figures 1 and 2, presenting openings (5) on all peripheral faces. The air flow in the troughs, whenever operating as air entry (E) or air exit (S) is represented in figure 4.
A second concretization of the invention is represented in figure 3, presenting opening (5) just on the converging superior faces. The air flow in the troughs, when operating as air entry (E) or air exit (S) is represented in figure 5.
Now just referring to figures 6 and 7, we see the effect enabled in the troughs (1) by the openings (5) and the air flow in the troughs on a grains drier.
The present descriptive report deals about an invention viewed for industrial application, presenting novelty and inventive activity, provided of all requirements determined by the law to receive the requested privilege.
Invention technological sector The grains drying after the harvest and before the storage is a need due to the strongly hydrated by heaps product's characteristic alterations, such as the respiration or oxidation of glycides, intra-cellular fermentations, development of bacteria and fungi, and all noxious effects resulting from.
The present invention belongs, in general way, to the technological sector of grains drying equipments, and, more specifically, refers to a new conception applied to an air-duct for drying towers.
Known state of technique From the state of technique of this technological sector is known a series of modalities of grain driers: the horizontal fixed layer driers, in which the product remains static in a compartment with perforated floor, through which the heated air is blown; column driers, in which the product, distributed in vertical columns of perforated plates, is submitted to air flows perpendicularly to the columns; concurrent flows driers, in which the grains and the air flow in the same direction; counter-current flow driers, in which the grains and the air are moved in opposite directions; grains static driers, which blow hot air in troughs of V form, through which the grains to be dried pass.
Grains drying towers in static driers are provided of air entry and exit ducts, known as troughs, through which the air flow is feed at one end, flows along the air-duct, and exists through the longitudinal opening on the base, passing through the grains mass, continuing in direction of other troughs in parallel. This air is used to hear or cool, and, consequently, dry the grains that pass through the drying tower, as described in the document P1 0.802.885-0, high performance grains drier, of the same demander of the present request.
This previous process describes a drier that conjugates in its drying tower three air flow principles adopted in the drying processes (concurrent, counter-current, and crossed), besides presenting different air flow values from the top of the tower to its base, taking in consideration the grains nature and their behavior during the drying to obtain the process maximum efficiency, and incorporation as well means for the grains loading box homogenizing, hydraulic unloading, and hot air homogenizing.
Novelty and objectives of the invention The present invention was conceived for the use in grains high performance driers, but can also be used in other conventional driers.
The invention proposes the perforation of the troughs on their faces in order to reduce the grains column between the trough layers, which increases the drying speed because the grains thickness is finer, consequently reducing the drying time. In this way, in the same static capacity, the production will be increased up to 100% in comparison to a drier of the same technology.
It is the case of a simple solution that provides a surprisingly new technical effect.
Description of the annexed drawing So that the present invention will be fully understood and taken to practice by any technician in this technological sector, the same will be explained in a clear, concise, and sufficient form to enable its reproduction, having as basis the annexed drawings listed herein below, which illustrate and subsidize the same.
Figure 1: Drawing in perspective of a concretization of the proposed trough, object of the present invention, in which can be seen the openings on its faces, and where the same is operating at the air entrance on the drier.
Figure 2: Drawing in perspective of a concretization of the proposed trough, object of the present invention, in which can be seen the openings on its faces and the same is operating at the air exit on the drier.
Figure 3: Drawing in perspective of a second concretization of the proposed trough, object of the present invention, in which can be seen openings just on its superior faces, and the same was represented operating at the air entry and exit on the drier.
Figure 4: Drawings in cut of the first concretization of the invention, on which are represented the air entry and the corresponding hot air flow, and the air exit, and the used air flow.
Figure 5: Drawing in cut of the second concretization of the invention, in which are represented the air entry and the corresponding hot air flow and the air exit, and the used air flow.
Figure 6: Illustrative drawing in perspective of the troughs assembling in the drier and of the corresponding air flows.
Figure 7: Schematic drawing of the troughs assembled in the drier and of the related air flow directions, in which a= crosses to the left, b=
descending oblique, c= concurrent, d = crosses to the left, e = concurrent, f = counter-current, g = crosses to the right, h = descending oblique, I =
countercurrent, j = crosses to the right, a = crosses to the right, b =
counter-current, c = concurrent, d = crosses to the left, e = descending oblique, f = concurrent, g = crosses to the left, h = concurrent, I = counter-current, j = crosses to the right.
Detailed description of the invention As can be deduced in general from the annexed figures, the perforated air-duct for grains drying towers, object of this descriptive report, refers to a trough (1) in V form, made-up by two vertical lateral faces (2), united by two converging superior faces (3), and closed on one end (4), the faces being provided of a multiplicity of openings (5), which reduce the grains column between the trough layers (1) in the tower (figures 6 and 7), which increases the drying speed because the grains thickness is finer, consequently reducing the drying time.
One first concretization of the invention is represented in figures 1 and 2, presenting openings (5) on all peripheral faces. The air flow in the troughs, whenever operating as air entry (E) or air exit (S) is represented in figure 4.
A second concretization of the invention is represented in figure 3, presenting opening (5) just on the converging superior faces. The air flow in the troughs, when operating as air entry (E) or air exit (S) is represented in figure 5.
Now just referring to figures 6 and 7, we see the effect enabled in the troughs (1) by the openings (5) and the air flow in the troughs on a grains drier.
The present descriptive report deals about an invention viewed for industrial application, presenting novelty and inventive activity, provided of all requirements determined by the law to receive the requested privilege.
Claims (3)
1. PERFORATED AIR-DUCT FOR GRAINS DRYING TOWER, referring to a trough (1) in V form, made-up by two vertical lateral faces (2), united by two converging superior faces (3), and closed on one end (4), characterized by the faces being provided of a multiplicity of openings (5).
2. PERFORATED AIR-DUCT FOR GRAINS DRYING TOWER, as revindicated in 1, and also characterized for presenting openings (5) in all peripheral faces.
3. PERFORATED AIR-DUCT FOR GRAINS DRYING TOWER, as revindicated in 1, and also characterized for presenting openings (5) on the converging superior faces (3).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI0901256-7 | 2009-04-16 | ||
| BRPI0901256A BRPI0901256B1 (en) | 2009-04-16 | 2009-04-16 | perforated tower for grain dryer tower |
| PCT/BR2010/000130 WO2010118496A1 (en) | 2009-04-16 | 2010-04-15 | Perforated air duct for towers of grain driers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2758408A1 true CA2758408A1 (en) | 2010-10-21 |
| CA2758408C CA2758408C (en) | 2018-06-12 |
Family
ID=42982072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2758408A Active CA2758408C (en) | 2009-04-16 | 2010-04-15 | Perforated air-duct for grains drying tower |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8961277B2 (en) |
| EP (1) | EP2420132A4 (en) |
| BR (1) | BRPI0901256B1 (en) |
| CA (1) | CA2758408C (en) |
| WO (1) | WO2010118496A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR102014003815A2 (en) * | 2014-02-19 | 2015-12-01 | Otalício Pacheco Da Cunha | parallel and winding grain flow drying tower through reverse cross air flow and oblique z-shaped radial air flow |
Family Cites Families (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US106961A (en) * | 1870-08-30 | Improvement in grain-bins | ||
| US1346335A (en) * | 1919-02-03 | 1920-07-13 | Oliver W Randolph | Grain-drier |
| US1685338A (en) * | 1925-01-28 | 1928-09-25 | Oliver W Randolph | Drying |
| US1587582A (en) * | 1925-09-11 | 1926-06-08 | B F Sturtevant Co | Apparatus for drying material |
| US2551460A (en) * | 1949-05-06 | 1951-05-01 | Int Harvester Co | Drying barn for agricultural crops |
| US2660810A (en) | 1951-03-27 | 1953-12-01 | Bryce M Hess | Drier for granular material |
| US3257733A (en) * | 1962-12-17 | 1966-06-28 | George A Rolfes Company | Drying apparatus and method |
| US3300873A (en) | 1964-05-12 | 1967-01-31 | Hart Carter Co | Grain dryer |
| DE1751164A1 (en) * | 1968-04-13 | 1970-10-01 | Glanzstoff Ag | Device for the continuous thermal treatment of pourable grainy material |
| USRE27030E (en) * | 1970-02-11 | 1971-01-12 | Kline etal grain drying process and apparatus | |
| US3710449A (en) * | 1971-01-06 | 1973-01-16 | Gear Co M W | Grain dryer with improved grain deflector |
| US3824705A (en) * | 1972-10-16 | 1974-07-23 | N Ives | Apparatus for drying grain |
| US3913242A (en) * | 1974-09-11 | 1975-10-21 | Gear Co M W | Preheater for grain dryer |
| DE2530304C3 (en) * | 1975-07-08 | 1979-03-22 | Basf Ag, 6700 Ludwigshafen | Method and device for drying and tempering polyamide granulate |
| US4009520A (en) * | 1975-07-21 | 1977-03-01 | Sukup Eugene G | Grain drying systems |
| CA1018759A (en) * | 1975-08-04 | 1977-10-11 | Christianus M.T. Westelaken | Grain dryer |
| US4006536A (en) * | 1976-01-22 | 1977-02-08 | M & W Gear Company | Concurrent-countercurrent flow grain dryer with air recycling means |
| US4067120A (en) * | 1976-08-02 | 1978-01-10 | M & W Gear Company | Grain dryer with air recycling ducts |
| US4149844A (en) * | 1977-09-08 | 1979-04-17 | Beard Industries, Inc. | Optimum continuous flow grain drying and conditioning method and apparatus |
| US4372053A (en) * | 1980-11-21 | 1983-02-08 | The Andersons | Dryer for particulate material |
| CA1196524A (en) * | 1982-09-27 | 1985-11-12 | M. Roy Gullickson | Aeration duct system |
| US4566205A (en) * | 1984-01-30 | 1986-01-28 | Lester Schlagel | Grain drying and storage structure |
| FR2569471A1 (en) * | 1984-08-24 | 1986-02-28 | Surier Albert | Cereal dryer |
| US4617744A (en) * | 1985-12-24 | 1986-10-21 | Shell Oil Company | Elongated slot dryer for wet particulate material |
| FR2652153B1 (en) * | 1989-07-06 | 1995-01-27 | Francois Laurenty | METHOD AND TOWER FOR DRYING GRAIN PRODUCTS. |
| US5443539A (en) | 1994-09-08 | 1995-08-22 | Westelaken; Christianus M. T. | Particulate dryer |
| CA2215230A1 (en) * | 1997-09-12 | 1999-03-12 | Darcy John Daugela | Grain dryer |
| US6085439A (en) * | 1998-04-03 | 2000-07-11 | Haletec S.A. | Apparatus for airing grains stored in bulk |
| US6209223B1 (en) * | 1998-12-08 | 2001-04-03 | Advanced Dryer Systems, Inc. | Grain drying system with high efficiency dehumidifier and modular drying bin |
| EP1423655A1 (en) * | 2001-08-10 | 2004-06-02 | Daniel Kallestad | Grain aeration system and techniques |
| US7568297B2 (en) * | 2006-04-10 | 2009-08-04 | Woodhaven Capital Corp. | Grain drying aeration system |
| US7818894B2 (en) * | 2007-10-15 | 2010-10-26 | Noyes Ronald T | Method and apparatus for low-energy in-bin cross-flow grain and seed air drying and storage |
| BRPI0704378B1 (en) * | 2007-10-30 | 2014-10-29 | Otalicio Pacheco Da Cunha | INTEGRATED AIR CLEANER FOR STORAGE AND DRYER SILOS |
| US8124009B2 (en) * | 2007-12-24 | 2012-02-28 | The United States Of America As Represented By The United States Department Of Energy | Method of aeration disinfecting and drying grain in bulk and pretreating seeds and a transverse blow silo grain dryer therefor |
| US8684801B2 (en) * | 2008-11-17 | 2014-04-01 | Sukup Manufacturing Company | Vent for a grain bin |
| US8356420B2 (en) * | 2009-03-09 | 2013-01-22 | The Gsi Group, Llc | Adjustable divider/hopper for a grain tower dryer |
| CA2707941A1 (en) * | 2010-06-15 | 2011-12-15 | Don Assie | Grain bin aeration duct |
-
2009
- 2009-04-16 BR BRPI0901256A patent/BRPI0901256B1/en active IP Right Grant
-
2010
- 2010-04-15 CA CA2758408A patent/CA2758408C/en active Active
- 2010-04-15 US US13/264,668 patent/US8961277B2/en active Active
- 2010-04-15 EP EP10763996.5A patent/EP2420132A4/en not_active Withdrawn
- 2010-04-15 WO PCT/BR2010/000130 patent/WO2010118496A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CA2758408C (en) | 2018-06-12 |
| US8961277B2 (en) | 2015-02-24 |
| US20120090722A1 (en) | 2012-04-19 |
| BRPI0901256A2 (en) | 2011-01-04 |
| EP2420132A4 (en) | 2014-08-06 |
| WO2010118496A1 (en) | 2010-10-21 |
| BRPI0901256B1 (en) | 2015-12-08 |
| EP2420132A1 (en) | 2012-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20150410 |