CA1251038A - Grain dryer - Google Patents
Grain dryerInfo
- Publication number
- CA1251038A CA1251038A CA000486454A CA486454A CA1251038A CA 1251038 A CA1251038 A CA 1251038A CA 000486454 A CA000486454 A CA 000486454A CA 486454 A CA486454 A CA 486454A CA 1251038 A CA1251038 A CA 1251038A
- Authority
- CA
- Canada
- Prior art keywords
- casing
- duct
- dryer
- grain
- grain dryer
- 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
Links
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A relatively compact, streamlined dryer for use in hopper-bottomed grain bins includes a foraminous, cylindrical casing surrounding a foraminous, cylindrical duct, which is coaxial with the casing, the openings of the casing and duct being directed downwardly to reduce the risk of clogging;
triangular brackets extending outwardly and downwardly from the casing for pivotally supporting feet so that the dryer can readily be mounted on the sloping floor of a bin over the central discharge opening thereof without substantially impeding the unloading of grain; an inlet duct in the side of the casing for admitting air into the dryer; and a frusto-conical, annular cap on the top end of the dryer closing the top of the passage between the casing and the duct.
A relatively compact, streamlined dryer for use in hopper-bottomed grain bins includes a foraminous, cylindrical casing surrounding a foraminous, cylindrical duct, which is coaxial with the casing, the openings of the casing and duct being directed downwardly to reduce the risk of clogging;
triangular brackets extending outwardly and downwardly from the casing for pivotally supporting feet so that the dryer can readily be mounted on the sloping floor of a bin over the central discharge opening thereof without substantially impeding the unloading of grain; an inlet duct in the side of the casing for admitting air into the dryer; and a frusto-conical, annular cap on the top end of the dryer closing the top of the passage between the casing and the duct.
Description
3~
This invention relates to a grain dryer, and in particular to a dryer for use in the air drying of grain in bins or silos with inclined bottoms.
The dryer of the present invention is primarily intended for use in bins having a capaci-ty of 2,000 to 10,000 bushels. In general, grain dryers for use in such bins are somewhat bulky structures, which may impede the unloading of the grain through -the bottom central diseharge opening of the bin. Moreover, eare must be taken to ensure that the dryer is sufficiently strong to avoid collapsing during unloading of the bin.
The object of the present invention is to overcome the above-men-tioned problems by providing a relatively simple, strong grain dryer, which can be mounted in the centre of a grain bin above the discharge opening without subs-tantially impeding the flow of grain during unloading of the bin.
Accordingly, the present invention relates to a grain dryer comprising substantially eylindrical foraminous casing means; substantially cylindrieal, foraminous duct means coaxial with and spaced apart from the interior of said casing means;
spacer means for maintaining the casing means and duct means in spaeed apart relationship; annular eap means intereonnecting and eovering the top of the casing means and the top of said duct means; and inlet means for introducing air under pressure into the spaee between said easing means and said duet means.
The invention will',now be described in greater de-tail with reference to the accompanying drawings, which illustrate a preferred embodiment of the invention, and wherein:
Figure l is a perspective view from above of a grain dryer in accordance with the present invention;
Figure 2 is a side elevation view of the grain dryer of Fig. l wi-th parts omitted;
Figure 3 is a plan view of a reinforcing ring used in the dryer of Figs. l and 2; and 10 - Figure 4 is a perspective view from above and one side of a foot used in the dryer of Figs. l and 2.
With reference to the drawings, the grain dryer of the present invention includes a foraminous, cylindrical outer casing l, and a foraminous, cylindrical central duct 2 concentric with the casing l. Both the casing l and the duct 2 are defined by a plurality of overlapping, interconnected panels containing louvers 3 over substantially their entire surfaces, with the exception of small planar rectangular borders ~. The louvers 3 are elongated openings which direct air downwardly and outwardly from the casing l, and downwardly and inwardly from the duct 2.
The casing 1 and the duct 2 are held together by an annular frusto-conical cap 5 and a pair of reinforcing rings 6 (Fig. 2) at the bottom and midpoint of the structure. The cap 5 has a generally inverted V-shaped cross sec-tion, and is open at the bottom for retaining the casing l and the duct 2 in proper spaced apart relationsh~p ! ~ short annular flange 8 extends downwardly from the bottom edge of the inclined outer wall 9 of the cap 5 around the top end of the casing 1. The cylindrical inner wall 10 of the cap extends from above the top of the inclined outer wall downwardly inside of the top end oE the duct 2. Screws or bolts and nuts (not shown) are used to connect the top of the casing 1 to the flange 8 and the top of the duct 2 to the bottom of the inner wall 10 of the cap 5. A square inlet duct 14 is provided in one side of the casing 1 for introducing a.ir from a conventional blower (not shown) into the space between the casing 1 and the duct 2.
With reference to Fig. 3, each reinforcing ring 6 is defined by a pair of concentric, annular metal strips 15 and 16, which are connected together by a third metal strip 18 which defineds an annular, essentially square wave pattern. This axrangement lends high strength to a relatively lightweight, thin walled structure, Three generally triangular brackets 2Q (.Fiss. 1, 2 and 4) are spaced equidistant around the bottom of the casing 1 for pivotally supporting feet 21. Each bracket 20 is defined by a pair of parallel, spaced apart, triangular sides 23, which are interconnected along their longer vertical edges by an inner plate 24, and along their inclined outer edges by a cross plate 25.
A small sleeve 27 (Figs~ 1 and 4) is provided at the bottom outer corner of the bracket 20 for receiving a short rod 28 which acts ~J~ 3 ~
as an axle for the t~iangular foot 21~ The foot 21 is held on the rod 28 by cotter pins 3~ (one shown~. The foot 21 has a generally U-shaped cross-sectional configuration and when viewed from either side is triangular. As shown in Fig. 4, the feet --21 permit the mounting of the dryer on a grain bin floor 31 havingvirtually any inclination, so that the longitudinal axis of the duct 2 is aligned with the centre of the grain discharge opening 32 in the floor 31.
In use, the grain dryer is placed on the floor 31 in the bottom centre of a grain bin over the central discharge opening 32. Rectangular tubing (not shown) is used to connect the inlet duct 14 to a blower or fan. When grain is loaded into the bin, the downwardly opening louvers in the casing 1 and the duct 2 prevent clogging of the openings by the grain. The open core structure does not obstruct the natural flow of grain during unloading, and eliminates the dan~erof collapse during rapid emptying of the bin. secause of the hollow core, the dryer occupies relatively little storage space in the bin. Moreover, the locating of the dryer in the centre of the duct ensures good air distribution.
The dryer of the present invention was specifically designed for use in hopper bottom bins with a capacity of 2,000 to 10,000 bushels, and accordingly the casing and duct are formed of 20 gauge galvanized louvered screen. However, the basic principles underlying the invention can be used in larger or smaller bins.
A
This invention relates to a grain dryer, and in particular to a dryer for use in the air drying of grain in bins or silos with inclined bottoms.
The dryer of the present invention is primarily intended for use in bins having a capaci-ty of 2,000 to 10,000 bushels. In general, grain dryers for use in such bins are somewhat bulky structures, which may impede the unloading of the grain through -the bottom central diseharge opening of the bin. Moreover, eare must be taken to ensure that the dryer is sufficiently strong to avoid collapsing during unloading of the bin.
The object of the present invention is to overcome the above-men-tioned problems by providing a relatively simple, strong grain dryer, which can be mounted in the centre of a grain bin above the discharge opening without subs-tantially impeding the flow of grain during unloading of the bin.
Accordingly, the present invention relates to a grain dryer comprising substantially eylindrical foraminous casing means; substantially cylindrieal, foraminous duct means coaxial with and spaced apart from the interior of said casing means;
spacer means for maintaining the casing means and duct means in spaeed apart relationship; annular eap means intereonnecting and eovering the top of the casing means and the top of said duct means; and inlet means for introducing air under pressure into the spaee between said easing means and said duet means.
The invention will',now be described in greater de-tail with reference to the accompanying drawings, which illustrate a preferred embodiment of the invention, and wherein:
Figure l is a perspective view from above of a grain dryer in accordance with the present invention;
Figure 2 is a side elevation view of the grain dryer of Fig. l wi-th parts omitted;
Figure 3 is a plan view of a reinforcing ring used in the dryer of Figs. l and 2; and 10 - Figure 4 is a perspective view from above and one side of a foot used in the dryer of Figs. l and 2.
With reference to the drawings, the grain dryer of the present invention includes a foraminous, cylindrical outer casing l, and a foraminous, cylindrical central duct 2 concentric with the casing l. Both the casing l and the duct 2 are defined by a plurality of overlapping, interconnected panels containing louvers 3 over substantially their entire surfaces, with the exception of small planar rectangular borders ~. The louvers 3 are elongated openings which direct air downwardly and outwardly from the casing l, and downwardly and inwardly from the duct 2.
The casing 1 and the duct 2 are held together by an annular frusto-conical cap 5 and a pair of reinforcing rings 6 (Fig. 2) at the bottom and midpoint of the structure. The cap 5 has a generally inverted V-shaped cross sec-tion, and is open at the bottom for retaining the casing l and the duct 2 in proper spaced apart relationsh~p ! ~ short annular flange 8 extends downwardly from the bottom edge of the inclined outer wall 9 of the cap 5 around the top end of the casing 1. The cylindrical inner wall 10 of the cap extends from above the top of the inclined outer wall downwardly inside of the top end oE the duct 2. Screws or bolts and nuts (not shown) are used to connect the top of the casing 1 to the flange 8 and the top of the duct 2 to the bottom of the inner wall 10 of the cap 5. A square inlet duct 14 is provided in one side of the casing 1 for introducing a.ir from a conventional blower (not shown) into the space between the casing 1 and the duct 2.
With reference to Fig. 3, each reinforcing ring 6 is defined by a pair of concentric, annular metal strips 15 and 16, which are connected together by a third metal strip 18 which defineds an annular, essentially square wave pattern. This axrangement lends high strength to a relatively lightweight, thin walled structure, Three generally triangular brackets 2Q (.Fiss. 1, 2 and 4) are spaced equidistant around the bottom of the casing 1 for pivotally supporting feet 21. Each bracket 20 is defined by a pair of parallel, spaced apart, triangular sides 23, which are interconnected along their longer vertical edges by an inner plate 24, and along their inclined outer edges by a cross plate 25.
A small sleeve 27 (Figs~ 1 and 4) is provided at the bottom outer corner of the bracket 20 for receiving a short rod 28 which acts ~J~ 3 ~
as an axle for the t~iangular foot 21~ The foot 21 is held on the rod 28 by cotter pins 3~ (one shown~. The foot 21 has a generally U-shaped cross-sectional configuration and when viewed from either side is triangular. As shown in Fig. 4, the feet --21 permit the mounting of the dryer on a grain bin floor 31 havingvirtually any inclination, so that the longitudinal axis of the duct 2 is aligned with the centre of the grain discharge opening 32 in the floor 31.
In use, the grain dryer is placed on the floor 31 in the bottom centre of a grain bin over the central discharge opening 32. Rectangular tubing (not shown) is used to connect the inlet duct 14 to a blower or fan. When grain is loaded into the bin, the downwardly opening louvers in the casing 1 and the duct 2 prevent clogging of the openings by the grain. The open core structure does not obstruct the natural flow of grain during unloading, and eliminates the dan~erof collapse during rapid emptying of the bin. secause of the hollow core, the dryer occupies relatively little storage space in the bin. Moreover, the locating of the dryer in the centre of the duct ensures good air distribution.
The dryer of the present invention was specifically designed for use in hopper bottom bins with a capacity of 2,000 to 10,000 bushels, and accordingly the casing and duct are formed of 20 gauge galvanized louvered screen. However, the basic principles underlying the invention can be used in larger or smaller bins.
A
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A grain dryer comprising substantially cylindrical, foraminous casing means; substantially cylindrical, foraminous duct means coaxial with and spaced apart from the interior of said casing means; spacer means for maintaining the casing means and duct means in spaced apart relationship; annular cap means interconnecting and covering the top of the casing means and the top of said duct means; and inlet means for introducing air under pressure into the space between said casing means and said duct means.
2. A grain dryer according to claim 1, wherein said casing means and said duct means include louvered walls, the openings of which open downwardly when the dryer is in use.
3. A grain dryer according to claim 1, wherein said cap means is substantially frusto-conical including a vertical inner side wall substantially aligned with said duct means and an inclined outer side wall.
4. A grain dryer according to claim 1, including foot means on said casing means for supporting the dryer above a bin floor.
5. A grain dryer according to claim 4 including connector means for connecting said foot means to said casing means; whereby said foot means can be rotated for mounting the dryer on sloping bin floors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000486454A CA1251038A (en) | 1985-07-08 | 1985-07-08 | Grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000486454A CA1251038A (en) | 1985-07-08 | 1985-07-08 | Grain dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1251038A true CA1251038A (en) | 1989-03-14 |
Family
ID=4130947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000486454A Expired CA1251038A (en) | 1985-07-08 | 1985-07-08 | Grain dryer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1251038A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7568297B2 (en) | 2006-04-10 | 2009-08-04 | Woodhaven Capital Corp. | Grain drying aeration system |
| WO2012024766A1 (en) * | 2010-08-26 | 2012-03-01 | Woodhaven Capital Corp. | Modular aeration assembly for grain bins |
| WO2012058748A1 (en) * | 2010-11-03 | 2012-05-10 | Ag Growth International Inc. | Collapsible aeration system for retrofitting a grain bin |
-
1985
- 1985-07-08 CA CA000486454A patent/CA1251038A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7568297B2 (en) | 2006-04-10 | 2009-08-04 | Woodhaven Capital Corp. | Grain drying aeration system |
| WO2012024766A1 (en) * | 2010-08-26 | 2012-03-01 | Woodhaven Capital Corp. | Modular aeration assembly for grain bins |
| US8720079B2 (en) | 2010-08-26 | 2014-05-13 | Woodhaven Capital Corp. | Modular aeration assembly for grain bins |
| WO2012058748A1 (en) * | 2010-11-03 | 2012-05-10 | Ag Growth International Inc. | Collapsible aeration system for retrofitting a grain bin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |